wifi issue - Mogul, XV6800 ROM Development

Ive discussed this problem multiple times, but im reviving it as i have some new information.
my xv6800 on dcd 3.0.1(will flash to 3.0.4 later today) has an issue with the wifi. i tested and discovered that the problem persisted on the stock rom, and after more testing, i think i ahve narrowed the problem down to one possible culprit..maybe
Multiple AP's with one SSID.
My wifi worked at home with few issues, and it works off campus at an place with an AP that i spend time at. the issue comes up when im on campus and i connect to the APs in the dorms and the classroom areas etc...
everywhere else, the SSID's are unique, so there is no confusion(for my phone) but when im at school and i use it, i can connect to the AP, named "buwireless", but when the phone goes to standby and comes back(and tries to connect again) the wifi shuts off and wont come back until a soft reset. what i have been able to do, to be able to use the wifi at school, is to remove the settings that it saves, and just manually connect each time.
I did this because i think the problem occurs when the phone has to connect to the SSID that it know, "buwireless" but the problem is that there are multiple AP's with that same buwireless ssid but with multiple MAC addresses. is it possible that the many APs with the same ssid could be giving me issues?
i dont know what else it could be given the fact that it works very reliably in most places, but at school its not like the phone doesnt work well with that ssid, its that the wifi on the phone actually stops working when it is confronted with that ssid. it wont search for others, and wififofum wont work either.
any more thoughts would be appreciated, and of course similar experiences would be interesting as well.
thanks

Related

[Q] Can't Connect to WiFi

Hi just received my GTablet and have installed ClockworkMod v08. Next, I am attempting to install the TNT Lite Rom but I am having trouble connecting to my home router.
The response I keep getting when trying to connect is to the point of "Obtaining IP address.." then it disconnects. I am sure it's not the wireless router but just to be eliminate possibilities, I've even switched off all the security with connect to the router, but the sames results. It keeps trying to re-connect. I can easily connect with my other PCs and printers.
Any ideas? Thanks in advance.
Hello there,
did you ever solve your wifi problem, I am currently running the latest TnTlite, and this just started happening to me as well. It just hangs in Obtaining Ip then it disconnects.... I have never had this problem before in fact was online on the tab last night, now it seems i cannot connect... I will see if I can connect in another location hope nothing happened to the Tab..... BTW I tried restarting as what was suggested but that did nothing for me also....
Are you broadcasting your SSID?
Can you take the tablet somewhere else and try connecting at a Star Bucks, or a library, or something. See if it connects ok there?
Also, if it doesn't connect anywhere. Try flashing a different ROM to see if it is just that one.
I've had the same problem. I do not seem to be able to connect to any wifi that is encrypted with WPA. At work, we are WPA and I cannot connect at all. At home, I have WEP and can connect. I thought it might be something with the wifi settings on the tab, and have searched and searched and cannot find anthing.
By the way, this is my third tab and none of them could connect to a WPA encrypted router. The first two I returned as defective. IF there is an answer, I would love to hear about it.
Also, this is my first android device. I have been messing with Windows phones for a long time...thanks to the great people on this site.
Sorry to hear about your wifi problems. Just to let you know my experiences, I've (in the week I've owned my tablet) run TnT, VegaN and cyanogen (latest of each) and have never had a problem connecting to my home wifi - I do not broadcast my SSID at all and use WPA2/PSK encryption. You both mention WPA - can either of you try WPA2/PSK?
But on saying all of that, if you can't even connect to your wifi point without any security involved, it sounds either:
1) Hardware - faulty tablet but you said you're on your third so that sounds unlikely. Remember, while the tablet supports wifi G/N it does so over 2.4Ghz so if you have a router that only does 5Ghz or is set to work exclusively over 5Ghz, your router will not see your tablet
2) Software related - Have you reflashed your kernel at all? Did you possibly install a kernel (not rom) that does not have wifi drivers installed or something similar?
I hope something above might help you....
I was never able to connect to the wireless router. I shut all the security off, reset the router, rebooted the tablet but still the same results, "obtaining IP address" then it fails and tries again. I could connect to my neighbors Linksys so I know the tablet wifi is ok. I also so know that the router was ok since it had been serving my other PCs & printers for a number of years. It just wouldn't connect to each other.
The problem still persists.
+++++++++++++++++
Running TNT Lite 4.2.1
bevbeng said:
I was never able to connect to the wireless router. I shut all the security off, reset the router, rebooted the tablet but still the same results, "obtaining IP address" then it fails and tries again. I could connect to my neighbors Linksys so I know the tablet wifi is ok. I also so know that the router was ok since it had been serving my other PCs & printers for a number of years. It just wouldn't connect to each other.
The problem still persists.
+++++++++++++++++
Running TNT Lite 4.2.1
Click to expand...
Click to collapse
You didn't answer in your response above, is your router a 5Ghz router or 2.4Ghz? Could the frequency of your router be causing your problem here? Remember the tab only supports 2.4Ghz frequencies
1. if your tablet can connect to your neighbor's router, then problem lies between your router and the tablet.
2. is your router a linksys? what wireless router are you trying to use?
3. are you using mac address filtering? is dchp enabled on the router or by some sort of home server?
4. your tablet can see your router, but for some reaon they cant agree on how to talk to each other. i'm on a linksys wrt54gsv4 and havent had a problem, not with default settings or wpa2 or mac filtering or the custom firmware i eventually installed on it (ddwrt), tomato)
Sent from my GTablet-TnT-Lite using Tapatalk
bevbeng said:
Hi just received my GTablet and have installed ClockworkMod v08. Next, I am attempting to install the TNT Lite Rom but I am having trouble connecting to my home router.
The response I keep getting when trying to connect is to the point of "Obtaining IP address.." then it disconnects. I am sure it's not the wireless router but just to be eliminate possibilities, I've even switched off all the security with connect to the router, but the sames results. It keeps trying to re-connect. I can easily connect with my other PCs and printers.
Any ideas? Thanks in advance.
Click to expand...
Click to collapse
You are ATTEMPTING to install TnT ROM? You dont need the Internet connection, just sideload it then install. Am i Right?
Then after you install the TnT rom, sideload also the Kernel TnT base with wifi fix.
http://forum.xda-developers.com/showthread.php?t=895825
Hope this will solve your problem.
Good luck
powercrazy said:
You didn't answer in your response above, is your router a 5Ghz router or 2.4Ghz? Could the frequency of your router be causing your problem here? Remember the tab only supports 2.4Ghz frequencies
Click to expand...
Click to collapse
I have an older Microsoft 2.4Ghz B/G wireless Router. I'll try to sideload the Kernel TNT base with the WiFi fix.
Thanks for the tips.
Since the original posting I have got TNT Lite installed (using my neighbors router)
bevbeng said:
I have an older Microsoft 2.4Ghz B/G wireless Router. I'll try to sideload the Kernel TNT base with the WiFi fix.
Thanks for the tips.
Let us know if it solve. If not, I think you have defective unit.
Goodluck!
Click to expand...
Click to collapse
Something else occurs to me out of pure ignorance. I'm not sure how Android stores profile information. But I know with both mac and windows I've had occasion where "forgetting" the network and letting the device rediscover it has solved problems.
It sounds like you've been down that road already. However, it does bear asking. It's the more obvious things we often forget to consider.
Well it looked like the tablet needed to be reset a couple of times as i was just online with it... now the tab just froze, shut off and now i cannot turn it on... off to another thread to see what to do now... god i hope this thing is not bricked....any suggestions on what is a good thread would be appreciated... off i go.......
edit: found a thread now to find the internal reset button. thanks to all at xda....
RyuFDAC01 said:
Well it looked like the tablet needed to be reset a couple of times as i was just online with it... now the tab just froze, shut off and now i cannot turn it on... off to another thread to see what to do now... god i hope this thing is not bricked....any suggestions on what is a good thread would be appreciated... off i go.......
edit: found a thread now to find the internal reset button. thanks to all at xda....
Click to expand...
Click to collapse
Try to hold the power button for a long time and maybe it may turn back on. Before doing your last resort (disecting the tablet).
I had a problem with my wifi going into loops when I first got the unit. It would show it connecting/disconnecting/connecting/etc as described in the first post.
I had another router (both the same makes - Linksys WRT54G but different model numbers) so I tested the other router and I connected fine. I haven't gone back to test the first router yet and I am using the 2nd one.
The router I couldn't connect to has DD-WRT micro on it, and I haven't had problems connecting other wireless devices to. The one that is working fine with the g-tablet now has Tomato on it (it is a lower version number which supported Tomato).
Too bizarre... I now have this problem.
I received my gtablet today and installed clockwork mod recovery and vegan-tab ginger RC 1. Or, essentially, I followed the instructions here and got everything working. http://forum.xda-developers.com/showthread.php?t=865245
Wifi worked fine until the evening. Wifi is on, and in the settings under the SSID of my wifi network, it says Obtaining IP address for a minute until it says Disabled, network in range. I've done some common trouble shooting, like restarting, turning wifi off and on, forgetting the network and reentering password. That didn't work. My cell phone has a mobile hotspot feature and the gtablet CAN join that. I wonder what gives... I hope someone can help.
(This could be just coincidence, but it's about when I powered up my desktop computer. The desktop connects to the internet through a DMZ router that has a wired connection to the wifi router in another room. The desktop is now off and the gtablet still has this problem.)
Ok. Resetting my router fixed it. I never thought that my router could just "dislike" one particular device. I thought for sure something had to be wrong with the device. Forgive my ignorance!
G Tablet Wifi
I do not transmit my SSID and this has never been a problem with any of our laptops or netbooks. When I first received my G Tab and tried to connect to my network, even though I had entered the SSID and Passphrase correctly, it still would not connect. As soon as I set my wireless router to transmit the SSID the G Tab connected without any problems.
This is the first time I've encountered a problem of this nature. Comments?
This is what worked for me. I posted this in a similar thread as well.
Hey, I had WiFi connection issues too. I just got a Viewsonic G-Tablet with the Android 3.0 OS and have a D-Link DI-524 wireless router. It could see router and would try to connect, but would cycle and never connect. I could try to connect to other available networks in the area. It connected fine to an unsecure network, and when I tired to connect to secure networks there was a place where I could enter a network key/password. However, I noticed this option was not available on my network when I tried to connect. I reset my router which did not help. I then chose the option to add a network on the tab. This worked!! I was able to enter the key from the add a network option. I then told the "bad" connection to be forgotten. Hope this helps someone else, as I had looked on the internet for awhile for an answer. I was about to buy a new wireless router too!! Oh, I am using WEP too.
edit: ok when I power my tablet back on the same issue was happening. This time I could enter a network and the cycling still contiuned. I even forgot and re-entered the network. The fix this time was to reboot the tab. However, my internet has been acting up lately so IDK.

[Q] No Wifi after Wifi Analyzer...

Hey guys,
I have a problem with my wifi...
Here is the before: Wifi works about 70% of the time, occasionally the connection would be dropped (as in "no network access", it still said it was connected).
Here is what then happened (in that order): Wanted to find a less crowded channel and installed Wifi Analyzer. Quickly decided that Channel 1 would be cool, browsed to the router configuration on the Desktop machine (LAN connection), changed the channel. Back to home on Android (don't remember whether via the home or back button). Into settings to see whether I would have to rescan or whether it would pick up the change of channel itself. It couldn't connect... It scans and attempts to connect, but doesn't
What I tried:
I restarted the Galaxy. Still couldn't connect.
Deleted the connection and re-entered the passphrase. Still couldn't connect.
Uninstalled Wifi Analyzer. Still couldn't connect.
Restarted device again. Still couldn't connect.
(At some point during all this, probably quite early, the Wifi symbol also stopped showing up in the status bar. Doesn't appear no matter whether Wifi is on or off)
Switched back to the channel I came from. To no avail
Switched of encryption on the Wifi. Still to no avail
Any ideas as to what might have happened and, more importantly, how to fix it? As I said the connection itself has never been the most reliable, but this is a different league
Thank you everyone!
Sandro
If you haven't tried it yet, reset your router. That fixes the majority of Wi-Fi issues out there. If that doesn't work, it may be your router itself. Certain routers have more issues with mobile phones than others.
You may want to go to a friends house and try connecting to his router and see if you can troubleshoot and isolate the issue. Either way, best of luck...
Sent from my GT-I9000 using xda premium
Damn you sitecom router!!!
Alright, one thing I hadn't tried until now was to restart the router. That fixed everything including (for whatever reason) the lack of the Wifi symbol!!
So if that is possible feel free to delete this thread! I didn't find the option anywhere...
Sorry for the unjustified disturbance
Sandro

Is wifi in webOS supposed to be buggy as well?

So I know wifi in android is buggy, this isn't a question about that.
My Touchpad won't connect to my wireless network at work. (in webOS or android) It always fails the IP configuration part. My android phone connects fine, and my laptop, and my iPad.
Kind of kills the usefulness of the tablet for me. Wondering if I should call up HP before my 90days are up.
Thanks in advance
I have had no issues with webOS 3.0.2 or 3.0.4 at work or home (and I run a number of access points at both locations). Always connects by itself everytime. Too early to tell with 3.0.5 but no issues so far.
Have you tried other routers? It could be just some issue with your router. Have you tried to manually assign an IP, I know you can in android.
spunker88 said:
Have you tried other routers? It could be just some issue with your router. Have you tried to manually assign an IP, I know you can in android.
Click to expand...
Click to collapse
It connects to my home network fine, just not the work one. Tried manually assigning an IP and that didn't work in either OS. Going to install the update to webOS and see if that fixes things.
As poster above mentioned, corporate/work networks seem to be the only thing that webOS MIGHT not play well with occasionally. I've gotten it to successfully connect to my work's 802.1x EAP network. It actually worked quite well, but then sometimes it stumbles a bit before connecting.
For the most part though, webOS wifi works just fine. Of course, this is because HP dev'd it with the drivers they have, that we DONT have, and most likely will never have.
Wifi now connects on both OS's after updating webOS to 3.05
Lol go figure
R1ptide said:
Wifi now connects on both OS's after updating webOS to 3.05
Lol go figure
Click to expand...
Click to collapse
It hasn't before for you? I'm curious about your experience.
The deal with Wifi in android is multi-faceted:
1. Accessing the wifi options sometimes crashes the thing, and you have to force close the settings app and try again.
2. With Wifi on, the wifi menu can be quite sluggish
3. A lot of times, it wont even scan for networks. It just says disconnected for ages, or will eventually scan, then try to connect, but never get past "Acquiring IP address".
4. A lot of times it will randomly lose its connection, yet still indicate that it's connected just fine. A toggling of the wifi usually fixes this, but also starts you at square 1 with attempting to connect to an AP. For some people, this process can be a nightmare.
5. Some people simply cannot connected to their secured network at all. Period.
Are you experiencing any of these issues still?
nickmv said:
It hasn't before for you? I'm curious about your experience.
The deal with Wifi in android is multi-faceted:
1. Accessing the wifi options sometimes crashes the thing, and you have to force close the settings app and try again.
2. With Wifi on, the wifi menu can be quite sluggish
3. A lot of times, it wont even scan for networks. It just says disconnected for ages, or will eventually scan, then try to connect, but never get past "Acquiring IP address".
4. A lot of times it will randomly lose its connection, yet still indicate that it's connected just fine. A toggling of the wifi usually fixes this, but also starts you at square 1 with attempting to connect to an AP. For some people, this process can be a nightmare.
5. Some people simply cannot connected to their secured network at all. Period.
Are you experiencing any of these issues still?
Click to expand...
Click to collapse
Before update:
never had any problems with wifi at all, except it just wouldn't connect to either of my two networks at work in either OS. Neither OS could get past the IP config stage. Tried manually assigning IPs in both OS's but that accomplished nothing. Home 5ghz network zero issues.
After update:
Instant connection, no issues.

[Q] PEAP problems since KK5

Hi. Since upgrading to KK5 or later roms/kernels, I've had big problems with connecting to PEAP-authenticated wireless networks. Initially I was unable to connect to them at all, but after installing the wpa supplicant fix, this was sorted.
However, I now have problems moving between different access points with the same ssid and with the same authentication. Previously, on KK2 and earlier, every time I moved to an area with a signal for this ssid, my wifi would connect automatically. Now, I often need to disable and re-enable wifi in order to get connected.
Further (and I'm less sure about this one) I seem to get larger battery drain when connected to these networks, and (possibly) moving around between them.
Does anyone have any suggestions about either of these problems? The first one is the more annoying. Thanks in advance.

Help with this very frustrating wifi problem on my Tablet S!

Hi,
I got a new Sony Tablet S a few weeks back and I have this really weird problem.
As soon as I on Wifi and connect to my college network, it connects fine and webpages open as expected.
But after a minute or so, all data transfer stops even though I am connected to the network. Initially I thought
it was a hardware issue with my tablet but when I went to my nearest McDonalds and connected to their connection, everything
worked fine and there was no interruption in the data transfer.
I tried a couple of other hotspots around town and they seemed to work fine.
So, now obviously its a problem with my college network. The funny thing is that my laptop, my cellphone and about a thousand other devices
connected to the same network work just fine and do not stop exchanging data all of a sudden.
I have tried various apps available on the Play store but none helped.
My (geeky) friend told me that the issue may be some sort of interference between the routers (Cisco Aironet series, I think), as every floor in my hostel has 4 routers, but he could not give a solution. I have also referred the problem to my system administrator but he too could not come up with a solution.
If anyone has a solution to this, please help!
Thanks in advance
Really strange.
I have a rule that occasionally works, strange probelms can be sorted out by a restart, if not, a reset mostly helps.
Can I suggest resetting your tab if not done yet!
Sent from my Desire HD using XDA
Did both. Doesn't help.
you need to re-flash the wifi modules, which comes with the kernel usually. But I dont think that possible at the moment.
Can you elaborate?
I have the same problem with my tablet, and when I called Sony for technical support, they said that the tablet is not compatible with the router I have. Which in my honest opinion dont think is the problem.
But as a way around, what I do is turn off the wifi for few seconds and then turn it back on.
This way the problem gets resolved.
I hope it helps you.
I have exactly the same problem, unfortunately the problem is with the wifi in my home, my sony tablet connect and disconnects, or it stop transmitting after a while, but other devices (my htc phone, my tablet, ipad, iphone) doesn't have this problem.
and as you said, when I go to other places the tablet works fine.
Someone said me that the tablet is not compatible with the motorola router of my ISP
I've been searching but there is no solution, by now I turn off and turn on the wifi every time I lost internet
Thanks people, but this is hardly a solution. It means I need to turn on and turn off the wifi every 60 seconds to browse the internet. Bye bye downloads, buffering videos and installing apps through the play store
Is the Sony Tablet S the only tablet in the world that is incompatible with routers? Then Sony should make sure that its clearly listed on their website that routers from major companies are not compatible with our Tablet
I solved the problem .. at last for me,
1 - turn off wifi.
2- in accounts - turn off "auto connect"
3- turn on wifi ( test if work )
4- reconect the accounts
too simple .. but works , try it..
I am sorry but its not working (that is if by auto connect, you meant auto sync)
Are you sure you are telling the solution to the problem I mentioned or something else?
Hi, I was suffering exactly the same problem and it boiled down that was a compatibility issue with the router. Unfortunately I could not find any other solution but replace the router itself!
Sent from my Sony Tablet S using XDA
Looks like I have to do the same. except I cant make my institute change their routers
What kind of encryption are you using on your router? Try disabling the encryption and see if the problem persists.
Also, what channel are you broadcasting on? It could be a highly populated channel, try changing that if you can.
I don't know what options are available through your routers configuration page.
I will enqure with my system admin and get back.
Meanwhile, I got a workaround to this problem. There is a freeware called MyPublicWifi which creates a virtual hotspot on my computer. This hotspot works fine and I can share my router's internet through this, even though it means I need to keep my PC on while browsing on my tablet.
I have experienced exactly the same problem since I bought the tablet. The router I have at home is a Buffalo WZR-HP-G300NH2. After a very long time trial-and-error, I have found a solution to it.
(1) Router setting: Force to set the 300Mbps mode of Buffalo router to 20MHz, not auto nor 40MHz. Some routers may display 150Mbps mode.
(2) Tablet setting: Settings->Wifi->advanced->Wi-fi disconnect policy, set to "Never"
You may try it and I think this will resolve the wifi disconnection problem. As for the reason, I think it is related to 11n because I have not found any problem with 11a/b/g router yet.
Hope this helps!!

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