Wi - Fi Problems, obtaining wrong IP [SOLVED] - Galaxy S III Q&A, Help & Troubleshooting

Attention!!! I found a fix for getting wrong IP using your router!!!This should help you if internet worked at first day on phone or sometimes works and sometimes not after reconects. This thread i created is about my routers not working with SG3 and other devices. Router fails to assign right IP for my SG3. Example: 192.168.0.100-199(last digit from 100 to 199) should be IP in that range but phone aquires 192.168.1.6 or 192.168.1.8 and it can't get internet acces! I could connect but not surf the internet. To make device get always same IP and most importantly get GOOD IP wich would not be broken and you could surf internet. You just need to reserve IP in router's network settings. This fixed my problem instantly!!!
Thank me if it worked for you!!
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Everything below is history!!
Pure stock, not rooted SG3 international version.
I have strange wifi problem. We have 2 routers. One is main(dlink) it was working fine for 5 days and sudenly my SG3 can't connect to internet. I saw that my SG3 is aquiring wrong IP 192.168.1.8 instead of IP192.168.0.(range of 99- 199) so it won't get connected to internet, but connection to router is good. Tried 2nd(linksys) not main router and it works, i can connect to internet (aquires right IP 192.168.0.138) something like that in right range from 99 to 199. First tried wifi fixers. Didn't work. Then tried factory reset didn't help too. Then hard reset from recovery with data wipe ( correct me if that isn't hard reset). That helped, but not 100%. Now i can connect. To main (dlink) router with right IP IP192.168.0.(range of 99- 199) and internet works, but tried with 2nd(linksys) and now problem has transfered to that 2nd router. I only can ask you. Why? What socery is this? Maybe custom rom i install from stock would fix this. Or i need to fix my problem without roming first? Strange.

Why two exact same posts ??????
jje

JJEgan said:
Why two exact same posts ??????
jje
Click to expand...
Click to collapse
Sorry, i deleted first Q on this one. I can't find solution to this problem anywhere. Already searching how to solve for about 12hours. Not critical problem but i don't want to live with it. Thanks for answering first Q.

Pickepys said:
Sorry, i deleted first Q on this one. I can't find solution to this problem anywhere. Already searching how to solve for about 12hours. Not critical problem but i don't want to live with it. Thanks for answering first Q.
Click to expand...
Click to collapse
Post the answer if you can as it may help others .
jje

Update: i lol right now. I went with my SG3 to googleplay via (main dlink router) downloaded angry birds seasons to see download speed. Speed was okay, played few mins. Tried to go to store again. Internet was gone. Internet works fine on my pc but on phone throught wifi not. And changed IP from 192.68.0.(last digit range 99 - 199 ) to 192.68.1.8. Now both routers have 192.68.1.8 IP as i connect to them with my SG3. Connection is strong but internet does not work, because of that freaky IP. I don't imagine how to fix this. My only thought is to flash my SG3 to custom ROM, because other devices works fine with these 2 routers.

So i flashed custom rom and it worked for a while. I guess because i did data wipe/factory reset. I thought i have solved the problem. Recently i installed FoxHound Rom wich is absolutely briliant. Then getting started app asked me to find wifi network. I sat near my router and... it again aquired wrong IP --->>> 192.168.1.8 <<<--- INSTEAD of 192.168.0.( from range 99 to 199). I i don't know what to do next! HELP ME PLEASE! :/
Our other device Galaxy Note works fine as ipad works fine too with those 2 routers.. But not SG3. Arrggh..

Pickepys said:
So i flashed custom rom and it worked for a while. I guess because i did data wipe/factory reset. I thought i have solved the problem. Recently i installed FoxHound Rom wich is absolutely briliant. Then getting started app asked me to find wifi network. I sat near my router and... it again aquired wrong IP --->>> 192.168.1.8 <<<--- INSTEAD of 192.168.0.( from range 99 to 199). I i don't know what to do next! HELP ME PLEASE! :/
Our other device Galaxy Note works fine as ipad works fine too with those 2 routers.. But not SG3. Arrggh..
Click to expand...
Click to collapse
Happened to me once(i also have two routers). Forget network on your phone then change the SSID and the password of your router. That worked for me good luck!

life_hacker said:
Happened to me once(i also have two routers). Forget network on your phone then change the SSID and the password of your router. That worked for me good luck!
Click to expand...
Click to collapse
NUMBER OF DYNAMIC DHCP CLIENTS:3
Hardware Address(MAC adress)..........Assigned IP.............Hostname.......................................Expires
5c:0a:5b:b0:c8:a1................................192.168.0.181..........android-e4ac52d089968853........23 Hours 57 Minutes
40:2b:a1:7c:ad:e0...............................192.168.0.182....................................................................23 Hours 55 Minutes
1c:6f:65:38:0f:32................................192.168.0.199...........Monster............................................23 Hours 54 Minutes
Watch at first line with Hostname android. That's my phone. And it says assigned IP 192.168.0.181, but in my phone i see 192.168.1.8. Will try your advise. I will thank you for it as i get more "thanks"! It may work
Update: After 5min: forgeted wifi in phone, changed SSID(name of wifi) and set the pass. Reconnected. No right IP on phone :*( WT* Please more advises. I raped that router 3 times today already (reset, reenter ips..). But my SG3 don't want to be friends with it.

Pickepys said:
NUMBER OF DYNAMIC DHCP CLIENTS:3
Hardware Address(MAC adress)..........Assigned IP.............Hostname.......................................Expires
5c:0a:5b:b0:c8:a1................................192.168.0.181..........android-e4ac52d089968853........23 Hours 57 Minutes
40:2b:a1:7c:ad:e0...............................192.168.0.182....................................................................23 Hours 55 Minutes
1c:6f:65:38:0f:32................................192.168.0.199...........Monster............................................23 Hours 54 Minutes
Watch at first line with Hostname android. That's my phone. And it says assigned IP 192.168.0.181, but in my phone i see 192.168.1.8. Will try your advise. I will thank you for it as i get more "thanks"! It may work
Update: After 5min: forgeted wifi in phone, changed SSID(name of wifi) and set the pass. Reconnected. No right IP on phone :*( WT* Please more advises. I raped that router 3 times today already (reset, reenter ips..). But my SG3 don't want to be friends with it.
Click to expand...
Click to collapse
I dont know if your router supports it; assign your phone a static IP.

life_hacker said:
I dont know if your router supports it; assign your phone a static IP.
Click to expand...
Click to collapse
Now i have flashed other custom rom and SG3 aquires right IP. For now. Internet works fine. Will report later. Any advices appreciated.
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Update: found this thread http://www.dslreports.com/forum/r22...-wireless-devices-aquire-the-wrong-IP-address.
He says:
"Everything connects to the router but getting internet working is only accomplished by manually changing the settings to those described above."
Maybe that's because my SG3 can act as modem too? Can galaxy note 4.0.4 act as modem or iphone4?

Unfortunately problem back again. Browsed internet for few min and got wrong IP as i came 3rd time to connect to wifi dlin router. Then i tried another router linksys and got instantly bad IP by connecting to it too. What to do now?!? It's definitely something wrong with my SG3. Do i need to reflash to original, reset counter and take it to warranty post?
Or maybe there is else i can do? Help!

Pickepys said:
Unfortunately problem back again. Browsed internet for few min and got wrong IP as i came 3rd time to connect to wifi dlin router. Then i tried another router linksys and got instantly bad IP by connecting to it too. What to do now?!? It's definitely something wrong with my SG3. Do i need to reflash to original, reset counter and take it to warranty post?
Or maybe there is else i can do? Help!
Click to expand...
Click to collapse
why dont you use the [1 to 99] host byte range? I know range doesnt really matter but if your phone wants to connect to the lower part, why not change that? Plus, did you try giving your phone a static IP address? thats the first thing I would do

I tried doing static IP on my phone and I think I did it wrong. Now I have flashed again I didn't connect to my main dlink router firstly after I flashed new rom, instead I connected to 2nd Linksys. Downloaded 300mb game and few more apps from googleplay, installed, restarted, reconnected and it still works. Will report later how it's going.
Sent from my GT-I9300 using xda premium

All those few days i was connected to 2nd linksys router. So it worked flawlessly until today when i tried to connect to main router dlink. First time i connected today it worked fine. Second time i got that EPIC FAIL IP 192.168.1.6 now. What the F***?! I resetted that router like 5 times to zero and reentered ips. All other devices works fine with it. Why not my SG3?!?! And my computer threw strange internet connection error but it wasn't affected by it. Internet works on my computer as it should. Error was about double ip. It said that other computer in the same network had the same ip. But it works fine after that error. I'm carring my SG3 to warranty post. I don't know any other options.
Edit: After 5 min tried to connect. It works now again just by reconnecting. Previously it didn't work that way. If it stuck, it was always stuck with that ip even if i did "'forget network" then "wifi off" then phone restart and wait some time. It could only work for some time if i did hard reset. Will see what happens next.

After another 5 min i tried reconecting to 2nd linksys router and now it has wrong ip 192.168.1.6 (not 8 at the end). But i get good in on main dlink router now! So main working and 2nd - not. Wtf... So this problem isn't caused by main router dlink. I now really believe that my SG3 has something wrong. I i will lose my connection again (can connect, but no internet), i will take phone to service.

Pickepys said:
After another 5 min i tried reconecting to 2nd linksys router and now it has wrong ip 192.168.1.6 (not 8 at the end). But i get good in on main dlink router now! So main working and 2nd - not. Wtf... So this problem isn't caused by main router dlink. I now really believe that my SG3 has something wrong. I i will lose my connection again (can connect, but no internet), i will take phone to service.
Click to expand...
Click to collapse
if you somehow get your phone to connect to the internet again. Just go to the router's configuration window and increase the lease time to max (say 1000hours). That way, your device will get the same IP for at least 1000hours

life_hacker said:
if you somehow get your phone to connect to the internet again. Just go to the router's configuration window and increase the lease time to max (say 1000hours). That way, your device will get the same IP for at least 1000hours
Click to expand...
Click to collapse
What's point of doing this if i go to other place and same thing happens. I will increase time there too or smth? I need to fix roots of the problem. Other devices works fine, but not SG3. Do not know.. Will installs few new roms and take it to service. Internet works now with main Dlink router but no linksys (other connected after main). I first thought it can be main router only. I thought when main locks with bad ip so other router gets bad ip too, but i was wrong. So no point in fixing routers, because if i go to anywhere else and there my SG3 lock with bad ip what then i should do? That's the point

This time i tried onother samsung galaxy s3 wich is not mine. Gues what. It bugged the same way. LOL. But somehow unbugged to correct ip after 5min when i did reconnect on that phone. Same thing happenned to mine with new rom. I jst installed new rom on mine and instantly as tried connecting got wrong ip again. But after 5mins~ turned off wifi and back on and it started to work again. Same s*it with both SGS3. I gues that's samsung fail with wifi. Wich cause with some routers to work wrong. And again all other devices have no problems with these router wich have SGS3s. I think i will have to live with it or buy other router.

life_hacker said:
I dont know if your router supports it; assign your phone a static IP.
Click to expand...
Click to collapse
So router with my sg3 worked for some time for few day and locked again. BUT FINALLY I FOUND HOW TO FIX THIS PERMANENTALY!!! YES!!!
To make device get always same IP and most importantly get GOOD IP wich would not be broken and you could surf internet. You just need to reverse IP in router's network settings. This fixed my problem instantly!!!

Reverse IP, what does that mean?
Pickepys said:
So router with my sg3 worked for some time for few day and locked again. BUT FINALLY I FOUND HOW TO FIX THIS PERMANENTALY!!! YES!!!
To make device get always same IP and most importantly get GOOD IP wich would not be broken and you could surf internet. You just need to reverse IP in router's network settings. This fixed my problem instantly!!!
Click to expand...
Click to collapse
Hello,
I am having wifi problems with SG3. Can you please explain what you mean by reversing IP in router's network settings?
Example: 192.168.????
Thanks, I hope someone sees this I know this is an old thread.

Related

X10 wifi SCANNING - DISCONNECTED loop! HELP!

Router information: Linksys Wireless-N WRT120N
I have done everything that i could think of to get this working. i have done several google searches and they all say to do specific things.
For example:
-Reset router
-Enable B/G only or G only set at channel 11
-turn off router firewall settings
-and a bunch of other random sh*t
i have done all of the above then some and i still cant get it to connect. all i get is *scanning* then *disconnected* thats the only two things it says. except right after i reset the router. every time i reset the router i get * obtaining IP yadadada* then goes to *disconnected* then back to the "scanning, disconnected" loop.
there have been some people that have said flashing a custom firmware on the router would fix the issue with mobile connectivity on Wireless-N routers.
please someone be helpful with this and please dont tell me i need to reset my router. i have asked this same question on several forums and the only replies i get are "if you reset the router and turn off security it WILL work fine" thats bull****. im not an idiot. thats the first step any computer literate person would take before asking questions.
**Update: same as from General thread. i had to repost because it was closed for some reason there. also here are the answers to the other two guys to responded.
"not standing close enough" -i have been standing next to it. i have yet to test it more than 10 feet away lol so it cant be there
"flash another rom or reflash current rom" -it has nothing to do with my rom, kernal, or radio. this issue is also happening on my girlfriends xperia running Wolfxperia and mine is the blackeditionHDv2. its also an issue with her sisters xperia. hers is still stock 2.2(i think). their stepdad has an iphone and it wont connect with that either. from what ive gathered... its a mobile issue. i know all these phones say (b or g only) but even setting the router to broadcast in b/g it still wont connect. it notices the routers name with full strength on all devices. also i might add that their laptop is an older laptop. does not support N but still can connect to the router and have internet.
Same here. Xperia mini x10 pro. When on it says connecting even thought I nothing appear visible.
Sent from my DesireS to your screen
Has it ever worked or it just not Working now? It happened to me before I reverted to stock and it worked
Sent from my X10S using XDA
*sorry for hijacking your post ts*
as for me it just started, before that when i was at col i was able to watsapp as usual, the phone is currently not with me but when i get i will post some ss for you to see.
-------------------------------
Here are the ss
any idea on how i can solve this?
I'm guessing this is an ip issue. The mobile devices are not able to get one. This usually happens to me on a public network and I even get a " limited or no connectivity".
The work around I do is to assign a static ip on my phone. Its very simple to do and if you need help doing it, let me know.
There's no clear explanation I can tell you, but it seems some mobile devices have a hard time pulling ip's from different types of routers. Hope this helps.
Sent from my X10 using Tapatalk
daniel.b said:
I'm guessing this is an ip issue. The mobile devices are not able to get one. This usually happens to me on a public network and I even get a " limited or no connectivity".
The work around I do is to assign a static ip on my phone. Its very simple to do and if you need help doing it, let me know.
There's no clear explanation I can tell you, but it seems some mobile devices have a hard time pulling ip's from different types of routers. Hope this helps.
Sent from my X10 using Tapatalk
Click to expand...
Click to collapse
Will ask my gf to give it a try. It happened so abruptly, it was working fine when she was at col then when she came back it won't detect any wifi, whether it's her house or mine, and now that she is back at her col she still can't connect.
I know how you feel.
I have had this issue ever since I first upgraded to Stock 2.3.3 last July. On 1.6 and 2.1 (both stock also) I never had issues.
Basically, in my case, resetting the router DOES solve the problem, but only for a limited time. This limited time is random, as sometimes it will work for a few days, and then sometimes it will cut out a few hours again after I have reset my router. I am also using the static IP method (and an app called WiFi Stat which I initially thought had solved the problem, but it hasn't) I'm not sure what triggers the WiFi connection to be lost, but there must be a trigger. Like I said, I never had this issue in my previous old Android versions.
I had hoped (somewhat naively) that moving to a custom ROM would solve the issue, but after installing Wolf's latest ROM, I still have this issue.
Have you tried anything based on 2.3.4 or above, to see if this is an Android 2.3.3 issue? Are there any good ROMs people could recommend that are based on higher versions than 2.3.3?
WEP/WPA key issue?
If its not the kernel/ROM/version of the phone, it could have something to do with the way the security is set up for your router. I had the most frustrating time logging into my university's wireless (think it was encrypted with 802.1x EAP) which required username and password. Though most home-owned router are equipped with WPA/WPA2 PSK or WEP, you can try the steps below:
1. Go to Settings ->Wi-Fi Settings -> Add Wi-Fi network
2. Type in the network SSID (yeah this is the manual part)
3. Open the "Security" drop-down box and set the following:
Security: 802.1x EAP
EAP method: PEAP (default)
Phase 2 auth.: MSCHAPV2
CA cert.: leave unchanged
User cert.: leave unchanged
4. Type in username (if any) and password.
Once again, this would work 99% for 802.1x...not sure about WPA/WEP. Good luck!
Try Channel 6 in router option and hope it works.
Solve
setting a static ip doesnt seem to work.. any idea? i wish not to re-flash as i dun think that would be a permanent solution.
again i dun think it has anything to do with my router as other gadgets are able to connect with it and i didnt fiddle with the security.
It is unable to detect any router as i have tried it different hotspots.
Hope to get some help.
------------------------------------
I wipe clear the settings and it worked again.. hope the problem doesn't persist again.

Wifi seeing router - not internet but on data works perfectly - help

Hi All
Having a spot of bother tonight
Randomly my SG2 could not access the internet through my router.
It sees my router, no problem there. I can switch off wifi and get online with my data but not through wifi.
I had been using it all day but it just randomly stopped tonight and my router is working perfectly as my laptop and other phone is connected.
I have restored 3 different Roms which were up to two weeks old in some cases. Also flashed 3 kernels and 3-4 modems
On ICS Stock rooted LP7 with CF root LP7 kernel
Not sure what else to try so any help would be appreciated
I have searched and tried everything I can so if you can help, thank you.
Search in original android development in checkrom thread, 2 days ago somebody put a zip file to fix wi fi issue, like yours. It's called Wi Fi fix. Search and you'll find
078gregory said:
Search in original android development in checkrom thread, 2 days ago somebody put a zip file to fix wi fi issue, like yours. It's called Wi Fi fix. Search and you'll find
Click to expand...
Click to collapse
Thanks Gregory
I tried it, but unfortunately it didnt work for me but I appreciate your help.
after flashing it, I couldnt even turn on wifi at the toggles or menu so I am doing a restore now and hopefully it will work.
I am not sure if doing a complete restore to stock firmware again will work.
Really dont know how this wifi issue so randomly appeared
Was your phone getting a DHCP address from the router or not ? on ICS, that happens when you get the popup message "Connected to XXXX".
VAXXi said:
Was your phone getting a DHCP address from the router or not ? on ICS, that happens when you get the popup message "Connected to XXXX".
Click to expand...
Click to collapse
Hi Vaxxi
If I dont understand what you are asking correctly, sorry.
the phone is receiving an I.P., gateway, dns, etc. each time I log on.
I can see that wifi connectivity is active but nothing is working despite clearing caches, doing restores, etc.
the problem started randomly
Yes, I was asking if it gets an IP through DHCP. Sometimes it gets stuck and you have to remove a file manually in order to refresh the IP address, but your problem seems to be somewhere else. Can you ping your phone from the router after it gets an IP address ?
VAXXi said:
Yes, I was asking if it gets an IP through DHCP. Sometimes it gets stuck and you have to remove a file manually in order to refresh the IP address, but your problem seems to be somewhere else. Can you ping your phone from the router after it gets an IP address ?
Click to expand...
Click to collapse
thanks for your help Vaxxi
I cant get near my router tonight unfortunately
I can 'see' it through 'Fing' app but if I try to use speedtest.net app to see if I have data, I get nothing.
I think I will try another stock flash again with LP7 stock, but I doubt it will work.
____________________________________________________________________________________________________________
Note: Fixed.
I did all the above to no avail.
Ended up reflashing the router firmware, not sure if this directly helped but upon reboot, my phone connected as usual but now had internet access again.
Strange as prior to flashing the firmware everything except my phone could avail of net access.
Thanks to each of you that helped.
im having the exact same issue. I have reflashed router firmware also but still nothing. Wifi symbol is there but not blue (cm9) data works perfect. Im also starting to wonder if its my router.
I have tried wiping all settings etc. Um currently downloading latest nightly so hopefully that does the trick!!

Samsung Galaxy S3 connected to WiFi but no internet connectivity

sup everybody.
firstly, i am a wireless expert (11+ years experience) so im not a nuubie to Wireless networks.
but i am new to Android and have just recently gotten an S3, so im hoping some body can help me.
i have an 802.11n wireless hop that connects my upstairs network to my downstairs network (internet router is downstairs)
upstairs i have an 802.11b/g access point for the older devices to connect to, this access point is connected to my 802.11n bridge
my laptop connects to the 802.11b/g network fine, and has internet connectivity (no issues)
when i first got the S3 last night, it was connecting fine as well, but since this morning, no matter what i do, the S3 connects to the access point, gets DHCP, i can ping the IP address, but it doesnt have net access, but if i connect to the 802.11n network it gets net access.
so for the life of me i cant figure out why.
so in a nutshell net access works from the laptop, but not the S3, same access point, and yes ive checked the WPA2 passkey, and the device is getting DHCP.
any suggestions.
like how to reset the IP address on the S3
Tried restarting your rooter?
Gesendet von meinem GT-I9300 mit Tapatalk 2
freebordjunky said:
Tried restarting your rooter?
Gesendet von meinem GT-I9300 mit Tapatalk 2
Click to expand...
Click to collapse
all of the above, like i said. laptop works, even my wifes stupid blackbery works on the access point
i have since i flashed omega 9 too a strange problem with wifi connection! It regognizes my wifi but if i want connect to it he says authentification error!!!! i've tried everything!! i have tried to flash an other rom with factory reset but nothing he recognize my wifi but won't connect to it!
I have tried several wifi networks!!! it connects only if i am near the router(+-5meters)
i can ping the IP address, but it doesnt have net access
Click to expand...
Click to collapse
Sounds like the default gateway route is not correctly received or activated. Do you have any computer/laptop with a promiscuous-capable Wifi card around that you might use with Wireshark? It should tell what exactly goes wrong.
Since you claim to be a Wifi expert I guess you won't need much help interpreting the result.
regognizes my wifi but if i want connect to it he says authentification error!
Click to expand...
Click to collapse
Are you sure the password is correct? Sounds stupid but well...
d4fseeker said:
Sounds like the default gateway route is not correctly received or activated. Do you have any computer/laptop with a promiscuous-capable Wifi card around that you might use with Wireshark? It should tell what exactly goes wrong.
Since you claim to be a Wifi expert I guess you won't need much help interpreting the result.
Are you sure the password is correct? Sounds stupid but well...
Click to expand...
Click to collapse
yes the password is correct, then it connects rarely to it but no internet connection!
on my macbook everything works fine
valerio.tosti said:
yes the password is correct, then it connects rarely to it but no internet connection!
on my macbook everything works fine
Click to expand...
Click to collapse
Try shutting off ur router.... Wait for a min or so then turn it bak on nd see what happens. I have an intellinet router which when the current goes off nd then on im able to connect to everythng except all google services (gmail, search, reader, syn, etc.) until i do the above. All my other devices connect fine in the meantime! Must be smthng with android....
- check the ip address.
- from device, ping its default gateway
- from device, ping external ip address that is known to response to ping
if all those works but you can't ping www.yahoo.com, it is resolver issue.
if all those including pinging yahoo works, and you still have no access, then the apps has issue or there is firewall.
2 S3 in a 3 days (Internet Isues)
Well, a seven days ago itake a Galaxy S3 from my carrier: Ancel (Uruguay).
IN the First day all fine,but in the night it can´t connect with 3g. In the other day the Wifi STOPs. TheS3 conect with the rooter but can´t navigate.
I change the rooter, resetthe phone (factory Reset) but the thinks not change.
I comeback to my carrierand Ancel take my old phone and give me a new S3 (1 day old).
For 2 days, it go well, butin the final of the second day, No wireless or 3g connect, the same again.
It´s a |Firmware problem, ahardware damage, what suppose I have to do ???
My computer is normal, myold N97 is fine, It has 3G signal and navigate on Wifi and 2G/3G, but my galaxyS3 no …
I ´m very confused with this situation ... Twophones in a 3 days …
Just joined to give u a suggestion
TRY
call *#0011# (Takes phone into service menu)
press menu key and select wifi
Disable wifi powersaving mode
You may need to repeat this upon phone restarts but it may well sort out your problem
XBoUnCiNX said:
Just joined to give u a suggestion
TRY
call *#0011# (Takes phone into service menu)
press menu key and select wifi
Disable wifi powersaving mode
You may need to repeat this upon phone restarts but it may well sort out your problem
Click to expand...
Click to collapse
This technique works for me but only like a temporary solution. Restarting the home router also works for me but again is temporary. This issue I think is with most galaxy s3 devices. I own a galaxy tab 10.1 and it's there in it as well. huge pain to check each time, critical notifications are always missed. Have switched to bluetooth internet sharing from my laptop to avoid disruptions as I just can't trust the wireless.
russeini said:
Try shutting off ur router.... Wait for a min or so then turn it bak on nd see what happens. I have an intellinet router which when the current goes off nd then on im able to connect to everythng except all google services (gmail, search, reader, syn, etc.) until i do the above. All my other devices connect fine in the meantime! Must be smthng with android....
Click to expand...
Click to collapse
i have tried that several times but no luck
---------- Post added at 01:22 PM ---------- Previous post was at 01:21 PM ----------
XBoUnCiNX said:
Just joined to give u a suggestion
TRY
call *#0011# (Takes phone into service menu)
press menu key and select wifi
Disable wifi powersaving mode
You may need to repeat this upon phone restarts but it may well sort out your problem
Click to expand...
Click to collapse
not working for me
None of both have commented on my suggestion to use Wireshark on another computer to see what's actually going on.
It's hard to guess the reason since by crystall ball is broken and it's nearly impossible to get magical artifacts in pristine conditions on ebay...
No Way.
But after reset the configurations, today in 3G mode al is fine.
In wifi it shows Conected in calennetwork, after this it show internet not avaliable via selected wlan ap. It can´t navigate.
In my router page , the received packets always change, for more data and the sent packets never change.
In the avanced configuration what is the Network prefix lenght ? In my XT860 and N97 i always select the channel of the router, but in the galaxy a don´t have this option.
But the strange, is that in the 2 galaxy s3 in the first day work im my router, and then after some hours it´s crash and not navigate...
Very bad Samsung.
I´m thincking in change my S3 for a S2 or Lumia.
I´m disapointed for it, because if i change the Firmware version i lost the warranty and i have bad feeling about this isues... Is a hardware fault or a software bug ???
Is a hardware fault or a software bug ???
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Click to collapse
The hardware sounds fine, I'd guess software issue.
because if i change the Firmware version i lost the warranty
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Click to collapse
You only lose warranty if you bring it to a store without original Rom. Just use the normal procedure (TriangleAway, Odin, Factoryreset) to get it back to stock and you're good to go. If your device has issues preventing it from booting (so you cannot re-flash original) they can't check the binary counter either :angel:
THancks for the help.
I will going to look for triangleway & Odin in the forum.
With my Motorola XT860 i made a lot of stuff: CWM, Custom Roms... but i dont´t know nothing about the S3.
Just some days reading here in XDA and a will going to know all that kind os Staff.
Sorry for the BAd English...
I'm having this issue. I think it has to be a firmware issue as I don't think I get it if I use CyanogenMod9 or 10 (but I could be wrong)
It really is very annoying and somewhat disappointing.
Hello Again!
I tested my S3 in others routers, and all the router that working without sharedkey (open network) my S3 can conect and acess the internet.
Test your phone with one and post for us here.
OBS: In my TP link TL-WR642G it can´t conect (with and without Shared key) but in the first day yes, i don´t understand it.
I will going to 3 school who has open Internet for all the childrens and this 3 schools my s3 conect and navigate in the Internet.
Thancks for the support, if anybody change the firmware and the phone come normal again, please comeback here and post for us.
I have this problem too.. since omega. Strange...'
Sent from my GT-I9300 using xda premium
Anyone with this issue, please try the following:
- Take a Nandroid backup of your phone (on the internal SDcard, restoring from external seems to be broken)
- Flash CM9
- Try Wifi
If it works, please report. if it doesn't, restore the Nandroid backup and report =)
Since CM9 is not based on Samsung-software, that should answer the question about it being an issue in the newer Rom once and for all.

[Q] Wifi not working after htc root method

Hope someone can help with this: rooted the other day using the htc unlocker method. so s-on with root and still stock rom..have not changed anything other than install busybox. no other changes. have not even gotten to flashing roms yet. So the phone will not recognize my home towifi. when it scans for networks, it sees everybody (neighbors) but mine as being in range (even tho i am sitting next to it). at one point i finally got it to connect yesterday, but then when i went to work it never disconnected and returned to 3g, so when i went to use my internet for something it said it was still connected, when in fact it wasn't. so no data and no 3g. I had to physically turn off wifi to get the phone to be able to connect to 3g. now i am back home, it will not connect again. the phone does not see my network as being "in range", therefore will not connect.
I have several other devices that connect to the network just fine (like my laptop I am typing on).
any ideas would be greatly appreciated.
There's an app called WiFi analyzer and WiFi manager available on the play store. Idk y it isn't connecting to your WiFi now when it did before, but maybe one of these 2 apps can help.
WiFi analyzer will tell u what channels thw other WiFi networks are on in your area. It could be an issue of interference. It will also tell u the best channel to put your WiFi on to avoid that interference.
Do u have best WiFi performance on in settings-WiFi? Turn it off/on see if it makes a difference. Off is optimal since it kills batteries.
WiFi manager helped my phone recognize and connect to open networks quicker than stock settings did. Maybe try that as well.
Is your connection password secured? WPA/WPA2, WPK? Is it a linksys router? Try making a static ip for your phone. My phone would never connect at work on an open network until I made it a static ip. Or it would connect and never send data.
Actually, try that first, I forgot about that. If its an older linksys router that's probably what it is.
Anthonicia said:
There's an app called WiFi analyzer and WiFi manager available on the play store. Idk y it isn't connecting to your WiFi now when it did before, but maybe one of these 2 apps can help.
WiFi analyzer will tell u what channels thw other WiFi networks are on in your area. It could be an issue of interference. It will also tell u the best channel to put your WiFi on to avoid that interference.
Do u have best WiFi performance on in settings-WiFi? Turn it off/on see if it makes a difference. Off is optimal since it kills batteries.
WiFi manager helped my phone recognize and connect to open networks quicker than stock settings did. Maybe try that as well.
Is your connection password secured? WPA/WPA2, WPK? Is it a linksys router? Try making a static ip for your phone. My phone would never connect at work on an open network until I made it a static ip. Or it would connect and never send data.
Actually, try that first, I forgot about that. If its an older linksys router that's probably what it is.
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I will try some of those things, but I don't think that is it. whatever is wrong is coming from root. everything was fine before that. and i don't know anything about setting up a static ip. not a linksys, btw.
greek goddess said:
I will try some of those things, but I don't think that is it. whatever is wrong is coming from root. everything was fine before that. and i don't know anything about setting up a static ip. not a linksys, btw.
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Click to collapse
Root doesn't have anything to do with your WiFi. It is highly unlikely anyways. Google how to set up static ip. U can do it right from your phone.
Your router doesn't show up at all or does is try to connect and nothing? Mine tried to connect and nothing. To set up a static ip your phone needs to at least see the router.
If you're rooted are u s-off? Either way, try installing a rom of your choice and doing a full wipe to clear out whatever is causing the issue. Maybe try installing new radios/firmware. RUU to newest ota version.
Good luck!
Anthonicia said:
Root doesn't have anything to do with your WiFi. It is highly unlikely anyways. Google how to set up static ip. U can do it right from your phone.
Your router doesn't show up at all or does is try to connect and nothing? Mine tried to connect and nothing. To set up a static ip your phone needs to at least see the router.
If you're rooted are u s-off? Either way, try installing a rom of your choice and doing a full wipe to clear out whatever is causing the issue. Maybe try installing new radios/firmware. RUU to newest ota version.
Good luck!
Click to expand...
Click to collapse
downloaded wifi analyzer, but that doesn't really help me figure out why the wifi will not connect or disconnect properly. As stated in my original post I am rooted, s-on, with unlocked bootloader htc method. this problem is almost exactly the same problem i had my samsung s2 when it first came out. the radio would not wake up after sleeping and the wifi radio was all messed up. In exactly the same way..
once it connects it is ok, but when i leave the house it never disconnects! so when i go out, it does not switch over to the 3g radio, and at that point i have to TURN OFF wifi. When I come back in the house then i have to go through another long process of trying to get it to connect to my wifi again. I did not change ANYTHING after rooting. So it has got to be related to that somehow....it just says. "MWOI0 not in range", but yet it will show 5 others in the neighborhood as being available (all secured like mine).
Does your regular computer/laptop connect to your wifi?
Have you rebooted your router/modem?
We had a power outage/surge one day and the computers connected still had connection, but the items which were disconected (phones left house for work) would not reconnect.
I know it sounds simple, but we spent half an hour figuring out why some devices had wifi and some didn't.
You are seeing neighbors wifi's, that's why I suggest this.
I also noticed this other thread, maybe related,
http://forum.xda-developers.com/showthread.php?t=1691189
There's an app called tasker in play store that allows u to turn on/off wifi by location automatically. It costs a pretty penny, but definitely worth it. The possibilities are exponential with that app.
Look into setting a static ip & change the channel on your router. Give u advice and u don't want to try it. Do u really want it fixed or is it just an annoyance u like to complain about?
Static ip worked for my phone in a similar situation. Up to u to implement the fixes.

Wifi Connected But Can't Access to Internet

My phone is HTC 620G but I think its not important because I've factory reset it and it didnt help. The problem is I'm connected to wifi but I can't access to internet. Sometimes I can but its way too slow, way way slow so as I said I formatted the phone but it didnt help. Waiting for your help
edit: I dont have any problems at other devices like laptop or phones but my phone...
edit2:When I connected to wifi near any device, the other devices internet connection got lost, its been so annoying i wanna get rid of this issue immediately
2.4 or 5ghz? What encryption ie wpa wep open? Can other devices connect to the wifi? Is the channel congested?
Edit I see you edited!
OLderDan said:
2.4 or 5ghz? What encryption ie wpa wep open? Can other devices connect to the wifi? Is the channel congested?
Edit I see you edited!
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Yeah there isnt any problem with other devices, btw i forgot the wifi on my phone, rebooted both phone and modem and it was perfect for a moment,then it goes back and its bad now, its 2.4,wpa/wpa2 i guess and i already tried digferent channels
Have you tried going to maccas or wherever is a free wifi near you and seeing if the phone can connect to something other than your router?
OLderDan said:
Have you tried going to maccas or wherever is a free wifi near you and seeing if the phone can connect to something other than your router?
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Click to collapse
Sorry forgot that,i was at my cousins and it was working perfect, problem is only at my home
I realised something now, i entered my gmail account on laptop and it sent my phone a notification, when i opened it I saw that one of my last connected location is Ireland. I didnt download any vpn apps so why is this saying that?
You might want to check the router settings. Some routers have a default limit on how many devices can be connected at once. It sounds like either that or IP address conflicts.
es0tericcha0s said:
You might want to check the router settings. Some routers have a default limit on how many devices can be connected at once. It sounds like either that or IP address conflicts.
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Click to collapse
It could be about ip address because there isn't so much device, so what should I do? And I think it could be about dns settings, I tried something for that but couldn't solve it

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