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 ???
Click to expand...
Click to collapse
The hardware sounds fine, I'd guess software issue.
because if i change the Firmware version i lost the warranty
Click to expand...
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.
Hello,
I run into rather strange problem. My phone, china Android 2.3.4, is working quite weel instead of this:
If I use WIFI, then turn it off and try to use mobile data connection, it is not possible.
Icon showing that mobile connection should be active is on, but no data comming through.
I tried switchiing to airplane mode, changing access point names and so on, but nothing worked. Only solution was to restart the phone, after that all works normally - until connecting to wifi.
After rooting my phone I tried to figure out more with Teminal emulator. It seems that after releasing wifi connection and turning interface down, mobile interface comes up with same IP as before - it should ask network for new one. But, more important, route table is empty (or containing one entery and no default gateway at all)
I tried bringing mobile interface up and down several times, tried forcing it to use dhcp (timeout), without success.
Is there a way to "reset" whole networking system from shell? Something like partial restart, which would be probably quicker than full restart.
Thank you for any ideas.
Same issue on my Galaxy S3. After being connected to wifi, i can't use mobile data connection and the only way to make it come back is reboot.
Any suggestion?
lesek said:
Hello,
I run into rather strange problem. My phone, china Android 2.3.4, is working quite weel instead of this:
If I use WIFI, then turn it off and try to use mobile data connection, it is not possible.
Icon showing that mobile connection should be active is on, but no data comming through.
I tried switchiing to airplane mode, changing access point names and so on, but nothing worked. Only solution was to restart the phone, after that all works normally - until connecting to wifi.
After rooting my phone I tried to figure out more with Teminal emulator. It seems that after releasing wifi connection and turning interface down, mobile interface comes up with same IP as before - it should ask network for new one. But, more important, route table is empty (or containing one entery and no default gateway at all)
I tried bringing mobile interface up and down several times, tried forcing it to use dhcp (timeout), without success.
Is there a way to "reset" whole networking system from shell? Something like partial restart, which would be probably quicker than full restart.
Thank you for any ideas.
Click to expand...
Click to collapse
narc1981 said:
Same issue on my Galaxy S3. After being connected to wifi, i can't use mobile data connection and the only way to make it come back is reboot.
Any suggestion?
Click to expand...
Click to collapse
I'm having the same problem with an LG Optimus F6. Did you ever get this resolved with your phone?
I purchased the international edition of the S3, new, and I just started setting it up today. Whenever I want to connect to my home network, it automatically indicates that it is disabled. I am sure I have the password correct as there are three other devices connected to it. I have tried calling customer service to help, but nothing they have said has worked (resetting the modem and router, forgetting and adding the network manually).
Can anyone help me out with this?
Disable security on your router and try .
Factory reset phone .
Return to service3 centre .
jje
Nope. Still shows up as Disabled as soon as I connect.
JoseCG said:
Nope. Still shows up as Disabled as soon as I connect.
Click to expand...
Click to collapse
Forget the network on phone and computer then reconnect
I did many times already : \ This is very odd.
Go to settings/about phone and post screen shot or details please
Hey Guys.
Recently my WiFi symbol in the notification tray turned grey and didn't go blue again.
I've noticed that when the symbol is GREY, I'm not able to access Facebook (through it's main App),it shows "Updating" only.
But to my surprise, the net works fine in the Browser ( inbuilt browser)
After analyzing the problem, I found that whenever I turned my Laptop on, the WiFi signal goes Grey..
And when I switch it off, it turns blue.
On further investigation, I came to know that both the devices (laptop and phone) have different IP's
Plus, another android device works well with the laptop being on.
I'm using Xolo Q600
Android 4.2.1
*no root, nothing...I'm amateur*
WiFi Router NetGear N150
Any help will be thankful.
Lakshya.
Have you tried reseting your modem? or forgetting the wifi net with both devices and set up the connection again?
Hope this helps
grapps said:
Have you tried reseting your modem? or forgetting the wifi net with both devices and set up the connection again?
Hope this helps
Click to expand...
Click to collapse
Hey..
I tried forgetting networks in both the devices (laptop and my phone) but to no avail..
It behaved the same way..
I even did a factory reset to my phone..but didn't help me, rather I lost all my game data
How to reset modem?
And why should I reset it as the other devices connected through it (including another android mobile) works extremely fine?
Pls help.
I cant toggle bw laptop and mobile.
Lakshya Saxena said:
Hey..
I tried forgetting networks in both the devices (laptop and my phone) but to no avail..
It behaved the same way..
I even did a factory reset to my phone..but didn't help me, rather I lost all my game data
How to reset modem?
And why should I reset it as the other devices connected through it (including another android mobile) works extremely fine?
Pls help.
I cant toggle bw laptop and mobile.
Click to expand...
Click to collapse
If you had using a model of your telephone services so the moutain frro of the back side of mouth organ have a small hole load spot in set up teen and click dam so your mordum has stated another option if you forget your password so go on your cmd it means command option go to run types cmd and click on them then dry type ip config and then you know that connection type means 192 168 10 or 11 go and type in your browser 192 168 or 10 hot 11 then you go on the full access of your router and the password of your router is there add mean and mean yea and another is password 1234 accessing them go to your wireless security and see your password thank you
if problem persist then try resetting your phone ones.
and did it worked fine earlier? if yes then contact your device center.
Hi,
I had no problems so far, but my Router broke and I got a new one. From this day one my Samsung Galaxy S3 phone is having this annoying wlan disconnects.
I have lots of wireless devices (laptop, tablet, 3ds, lots of htc phones etc, kindle) non of this has issues with my new router.
But somehow my S3 keeps losing the connection. This usually happens after I left the building and come back.
I look for many solution but couldnt find one working.
I tried the always on during stand by (it was anyway always on)
I tried to change the 2,4 brandwith but somehow this option is not availibly on my phone
I tried the *#0011# something number (I forgot) to change the wlan sleep time, but this option is not availible on my phone.
My router is using a dhtc ip distrupition also is using the b g n, which seems to work with any other device. I heard i should switch to only b g. But this lower the speed by 3, i dont want to do this. If this is the problem is there no fix for the samsung phone?
Thanks
ps after reconnecting the internet works without problem is the disconnect during standby which is annoying
Try a factory reset .
JJEgan said:
Try a factory reset .
Click to expand...
Click to collapse
I did now a factory reset, it didnt work. I still have the same wlan problem. And now I have to press like 3x connect until it connects to the wlan network...
The problem is solved with the patch released in January.
This big updated fixed all problems.