Database Users

[Q] WiFi Issues

UPDATE: Fixed, see post #7 for details.
Had my Nook about a week now. I know all about SOD, and have Tasker set to turn WiFi off when the screen is off, and it hasn't been a problem.
What has been a problem is the WiFi randomly dying. WiFi will be on, but it won't recognize my home network. After a reboot everything is back to normal.
I looked through another thread in the dev section about this, the thread had some examples of router settings. My router settings match those, and I'm still having this problem.
So I'm not sure- is it a kernel issue with the wifi driver, or still a router problem? Anyone else having this kind of issue and can point me in the right direction, maybe other router settings to try?
Thanks!

When you bring up the list of access points, does it see any of them? That is, do any APs have the little signal-strength meter next to them?
If not, that's a problem that ISTR has been fixed in recent nightlies; at least, I haven't encountered it in a couple of weeks, after getting it nearly daily.

stolenmoment said:
When you bring up the list of access points, does it see any of them? That is, do any APs have the little signal-strength meter next to them?
If not, that's a problem that ISTR has been fixed in recent nightlies; at least, I haven't encountered it in a couple of weeks, after getting it nearly daily.
Click to expand...
Click to collapse
No, it doesn't recognize the AP at all, and if I try to manually connect it'll connect for a second then drop it.
I'm a couple nightlies behind so I'll update and see if that helps.

What rom are you using with your nook? or just the stock rom. I have the same issue with the 87 nightly build, but it's gone when I tried a newer build.

I was just about to post something like. I have a similar Issue. I dont know what ROM I was running before ( flashed it many months ago, was Froyo) but yesterday I installed CM7 (Gingerbread) (from this thread http://forum.xda-developers.com/showthread.php?t=1030227 ) and I have the same issue.
Wifi works and randomnly dies. It still shows connected and full signal strength, but it won't access the network/internet until I reboot it. All other devices connected to the router work fine, including an EVO 4G running Gingerbread.
Any Ideas?

Ok so I'm on the latest CM7 nightly now, still experiencing this problem. WiFi just drops out randomly, often in the middle of loading something.
When this happens I can see that WiFi is on, but it can't see any AP's- so it's not a router issue. Restarting fixes it, but it's annoying to be reading something then have to restart just to get connected again.
So now I'm thinking it's a kernel problem. Is there anyone who's running an older version of CM7 without the OC kernel built in, and has experienced this same issue?

Ok, got it fixed, or so I think. Figured I'd update here so anyone else having the same problem can get help.
The issue, as was suggested in another thread, is with having too many AP's saved. Because the NC was synced with my google account, it automatically downloaded a whole list of AP's from my phone. I went into wireless settings and deleted everything except the 2 or 3 I use on a regular basis, and the wifi is solid as a rock now.

[Q] Data Connection shutting off on Xoom?

I've had my Xoom since the beginning of March and this is the first time I've had this issue.
Earlier today my 3G wasn't working. I go to my settings and try to turn off the mobile network and then turn it back on. That didn't work, so I restarted the tablet. Connects to 3G no problem.
I come back from lunch and the same thing happens. I go to the settings and try to turn off and back on the mobile network. No dice. Reboot, 3G is back.
What gives? Anyone having this problem? Running 3.1 not rooted.

Well, this is an old thread - but I was doing my due diligence by searching before posting a question and this is the closest I could find. In fact, it exactly describes my recent troubles. I had to power cycle my Xoom 4 times yesterday to restore data. Turning data off and back on didn't restore data. Only a power cycle resolves it, for a while...
I live in a 3G only area. I just got my Xoom back from Moto service, after it got stuck in the Honeycomb boot screen animation for the 4th time in 6 months. Since getting it back, I've had these data connection issues. It's strictly stock OS, by the way. Android version 3.2.6 and build HLK75H
If it did it daily, I'd say it's a tablet issue. But yesterday was full of reboots and today it's been fine all day. Sound like a known issue or perhaps just a Verizon data problem?
thanks all!

Well I had something similar but reboots didn't fix it. Sent mine in for the LTE upgrade and returned with signals barely 50% and not staying connected, in either LTE/cdma or cdma modes. I took mine to work and inspected under a scope and saw cold solder joints on all the antenna connectors for the center pin. Reflowed them all and signal strength back up and not dropping data. Not sure if this would apply to you.

Thanks, Tiger. I think my Xoom issue is different since, when I DO have data connection, the signal strength is fine. And reboots restore my connection.
I have discovered that I can force this to happen by leaving an area with wifi coverage. My Xoom now consistently won't transfer from wifi to 3G. As an experiment, I turned off wifi today and it's been fine all day - running only 3G. But, if I have wifi on the transition from wifi to mobile seems to choke it.

data issues too
Mine used to be just fine. After the 4g upgrade I am now having these same disconnect issues as well. Should have never let it out of my hands... I am thinking it is time to root and rom and hope it is a software issue.

rossvtaylor said:
Thanks, Tiger. I think my Xoom issue is different since, when I DO have data connection, the signal strength is fine. And reboots restore my connection.
I have discovered that I can force this to happen by leaving an area with wifi coverage. My Xoom now consistently won't transfer from wifi to 3G. As an experiment, I turned off wifi today and it's been fine all day - running only 3G. But, if I have wifi on the transition from wifi to mobile seems to choke it.
Click to expand...
Click to collapse
Well what your describing sounds more like an app causing the problem. One of ur apps is holding onto the radio (wifi or cell) and is not letting go so the tab can switch properly. Since you sent it in for repair I would assume you made backup before it went in and you just restored it all. Which if the cause is not an app, then one of the system apps restored data conflicts with what's in there now.
If you used titanium backup I would perform a full back up, wipe your tab back to default state. At this point just give your tab a dry run (just skip sign in and adding accounts so google doesnt restore your apps) and use wifi/cell, browse web, for while to see if problem continues. If not then restore "missing apps and data". Not full restore. This way it only restores what's missing (which of course won't be the system apps/data). After this then things I would only restore in system apps would be browser favorites.

Cyanogen Wifi Issue

I've tried just about everything I can think of to get wifi working on my phone, and I just can't get it to be reliable. I turn on wifi, it "turns on", but doesn't do anything at all (and sometimes will ask to force quit). I turn it off, and on again, and this time it finds networks, but does nothing other than searches for networks. I turn it off, and on again, and this time it connects, but then drops a full signal network in a matter of minutes.
The extent that I've gone to sort this out is re-downloading the 10/22 release (I've done this twice now), flash the new download (3 times over just to make damn sure it's in there), and checked wifi before applying anything else. No matter what I do, I can't get it to stay connected for more than a few minutes, and I can only after going through the entire process above.
Is there some fix that the search function of this site can't seem to find for me?
By the way, wifi has worked perfectly fine on other ROMs, and I've flashed back to stock to make sure during this whole process. There's nothing wrong with the hardware.

The current buglist:
Outbound calls initiated from a bluetooth handsfree kit do not wake the phone
Charging notification LED does not light until full charge is reached
WiFi is unstable
Overlay for Video Recording
Video playback for certain encoders
Wimax
Click to expand...
Click to collapse
CM 7 thread for the Epic
I haven't used this rom, so I can't be of much help other than sharing the above from the OP of that thread.

Which modem are you using with it? I had CM7 installed a couple of weeks ago with the EH17 modem and wifi worked fairly well. I'm by no means an expert on this stuff though so maybe the modem doesn't even have anything to do with the issue.

Nikon is right on the money. Be sure to carefully read the OP notes to any ROMs you try out, especially if they are test builds, alphas, betas, RCs, etc. Pay special attention to the "Changelog" and "Buglist" sections, especially when you're having issues.
The WiFi instability is a very well known bug and not only is it listed in the Buglist of the CM7 OP, it's discussed and brought up repeatedly in the CM7 Topic. Currently there are no perfect fixes or workarounds, though some people say that it stabilizes if you go into the [Advanced] menu and set the Sleep Policy to "Never." As a user of CM7, I haven't found anything to work particularly well, you just have to repeatedly toggle it on/off/on/off until it temporarily stabilizes.
Decad3nce recently posted about some WiFi updates they've made, but I'm not sure if it fixes the majority of the stability issues or not.
Read the CM7 thread, or at least check the OP every so often! You'll stay much better informed.
EDIT: While the modem may be related, that is not the root of the issue. Many folks have tried different modems and there are still WiFi issues. If a certain modem cured the problem we would have heard of it by now.

my wifi is pretty stable on cm7 and i have been running the rom from three works...i always turn on the wifi from wifi settings (not the powerwidgets or status bar, it seems to scan forever when you do that)..and also turn it from the wifi settings..and it works flawlessly for me when i need it (i used it from some videos for an hour or so and it didn't drop once)..
p.s. settings>wireless & networks > Wi-Fi settings (not Wi-fi) and turn it on from there..

Sudden issues with wifi + LTE, MHC19Q (Solved)

Edit 5: Gonna go ahead and declared this solved, the problem hasn't come back since I factory reset and reflashed MHC19I (not Q) from scratch. No more issues with wifi not autoconnecting or taking excessively long to connect, no more battery drain (got nearly 48 hours this weekend including a good amount of time spent in a poor/oversaturated service area at the Grand Prix), etc. Probably going to wait until the May update before flashing any OTAs.
Edit 4: Two days later and still seems to be working fine. I'm seeing some other issues on the April update (significant battery drain, slow wifi connect, etc.), so this morning I tried rolling back first to January (wouldn't get LTE) and now to March (fine so far). With the exception of keeping my media, I'm setting this up completely new, i.e. redownloading everything from the Play Store, to avoid any weirdness from restoring backups.
Edit 3: A factory reset done via TWRP (which retained my media) seems to have solved it for now. At any rate it's been acting normal longer than anything I've done before. This includes restoring my apps + their data via TitaniumBackup (but not system backups), reflashing SuperSU and otherwise getting my phone back to where it started. I've tested things that were known to cause it before like having wifi active but leaving my signal area and having it revert to cell data. The only issue I've noticed now is that wifi no longer seems to autoconnect when it's in range of my router. Not a huge deal but kind of annoying, if anyone has a fix for this I'd appreciate that too.
Edit 2: This issue is NOT resolved. The problem came back after working for a little while. Once the LTE fails the wifi will never reconnect on its own. It seems like everything still works except loading images from anything (reddit, instagram, etc.) and loading bookmarks. I can make google searches, download apps, go into reddit comments, go to instagram profiles I've never been to before, and so on. Is my device defective?
Edit: It appears that going through the motions of flashing the latest update (save for recovery.img and formatting userdata) has fixed the issue. This includes reverting to the stock kernel and flashing the vendor.img, which I hadn't done before. Wifi can be flipped off and on and will reconnect and there are no "!"s anywhere in sight. Strange considering I essentially went through the whole process minus the stock kernel and vendor.img, just out of order, with no effect.
Can anyone offer insight as to what piece of that process might have fixed this? It's not clear to me which pieces of the update are responsible for wifi and cellular connectivity besides the radio and kernel. Leaving the original post below in case anyone has anything to add or is going through this same issue. I'll update this post if the issue returns.
---
As of just this afternoon I'm suddenly getting a strange new issue that I can reproduce pretty consistently. I first noticed that my wifi signal was claiming to be connected but with no internet, and showed a little exclamation point next to it. I disabled wifi, and noticed the exclamation point jumped over to LTE. In both cases, I can still essentially use the connection. I disabled cellular data with wifi connected and could still browse the web, and likewise if I disabled wifi and the exclamation point was back on the LTE symbol. However, I notice some apps like Instagram will refresh posts but no longer load images, and reddit will load posts but not follow any links or load any images either.
Things I've tried:
-Flashed the 2.50 radio (down from 3.61)
-Flashed the MHC19Q system.img and cache.img
-Installed ElementalX kernel (at first it looked like it fixed the LTE issues, but really it just made the "!" go away; still seeing the same issues when I connect to wifi and then disconnect)
-Deleted and readded the nxtgenphone APN (I'm on AT&T)
-Tried to get into *#*#4636*#*#; I get "Connection problem or invalid MMI code."
-Cleared cache/dalvik in recovery (hey, you never know)
-Rebooted my router to make sure it's not an issue there; all other wireless devices on my router are fine
-Removed and reseated the SIM card
In all cases I can still send and receive texts and certain apps will continue to function about halfway, such as Instagram mentioned above. Switching airplane mode on and off doesn't help. Furthermore, once the wifi connection first gets the "!", it will no longer automatically reconnect as it doesn't find a working internet connection.
After an initial reboot it will appear to be fine; wifi connects automatically, no "!"s anywhere in sight, and everything seems to work. As soon as I disconnect from wifi, this issue starts. As mentioned, it will no longer reconnect to wifi and cellular data doesn't seem to work.
Anyone have any thoughts or suggestions as to what the issue may be? This started out of the blue this afternoon, I haven't made any changes to my phone since flashing the April image. My bootloader is unlocked and I'm rooted, and save for the ElementalX experiment (going to go back to the stock kernel) everything else is stock.
Any help is appreciated. If you need any more info, let me know.

Did your problem get resolved or did it come back. I'm having a number of problems on t-mobile since upgradingj to mhc19q

acathrow said:
Did your problem get resolved or did it come back. I'm having a number of problems on t-mobile since upgradingj to mhc19q
Click to expand...
Click to collapse
So far so good, the issue hasn't returned, although I'm really not liking the latest update. I'm considering rolling back (is that something I can do? I don't see why I couldn't) to January or so.

I'm still in limbo. T-mobile have been helpful but it's in Google Nexus support's hands and they have been less than responsive to say the least.
Next step is likely replacement device but in the mean time I just finished flashing 19i and will see if that has the same issues, then I'll try the previous build.
I'm kicking myself that I didn't check the version numbers I was on before applying April update. Ah well, lesson learned,

acathrow said:
I'm still in limbo. T-mobile have been helpful but it's in Google Nexus support's hands and they have been less than responsive to say the least.
Next step is likely replacement device but in the mean time I just finished flashing 19i and will see if that has the same issues, then I'll try the previous build.
I'm kicking myself that I didn't check the version numbers I was on before applying April update. Ah well, lesson learned,
Click to expand...
Click to collapse
Out of curiosity are you doing a full wipe before flashing different builds? I noticed in my case the issue didn't go away until I did a factory reset, which I think suggests something was corrupt or otherwise affected in the system partition. Since doing a factory reset (and now after doing a couple more) the issue seems to have gone away and I'm no longer having wifi/LTE issues - well, except for not getting LTE at all on the January update, so now I'm back on MHC19i.

Current status: My issue appears to be with t-mobile band 12, the new band that t-mobile is rolling out now.
It appears that the phone "prefers" band 12 to the older bands (like 4).
Rolling back to an image before band 12 was added (eg MDB08K from October) gives me back reliable LTE on band 4.
Sent logs to t-mobile and Google and waiting.

WiFi Won't connect/stay connected

Hi
I got my 6p about 4 days ago brand new, and upgraded to 7.1.1 wifi was fine and then went to 7.1.2 and wifi seemed fine for couple days while I installed apps and such I wanted
while I waited on a case to arrive, turned it on yday and my wifi connects then disconnects, sometimes it doesn't see wifi networks.. I tried to wipe cache no difference also
tried safe mode and nope.
Also tried to factory reset couple times and well it didn't change anything. Not sure what else to try, I tried shutting off my router for while.. Only thing I can think of is to send it back
unless someone has a idea.
thx.

SimpyD said:
Hi
I got my 6p about 4 days ago brand new, and upgraded to 7.1.1 wifi was fine and then went to 7.1.2 and wifi seemed fine for couple days while I installed apps and such I wanted
while I waited on a case to arrive, turned it on yday and my wifi connects then disconnects, sometimes it doesn't see wifi networks.. I tried to wipe cache no difference also
tried safe mode and nope.
Also tried to factory reset couple times and well it didn't change anything. Not sure what else to try, I tried shutting off my router for while.. Only thing I can think of is to send it back
unless someone has a idea.
thx.
Click to expand...
Click to collapse
Hello,
You can try flashing a 7.1.1 factory image to see if problem persists. If yes, it's likely a hardware issue...
Good luck...

You mentioned waiting for a case to arrive. Just to be clear you are having this problem with no case on the phone, correct? You can go into settings / Google / Networking and see if WiFi Assistant is ticked. Change the setting to whatever is the opposite of what it's set at and see if that makes any difference.

Same issue. Huawei had me send in my phone to repair it and I got it back yesterday. Wifi still broken and when I called them up today they want me to send it back AGAIN!

jhs39 said:
You mentioned waiting for a case to arrive. Just to be clear you are having this problem with no case on the phone, correct? You can go into settings / Google / Networking and see if WiFi Assistant is ticked. Change the setting to whatever is the opposite of what it's set at and see if that makes any difference.
Click to expand...
Click to collapse
That is correct, I hate using my phone without a case. rather not break it to soon bad luck and all.. I'd hate to have to send it back before even using it lol..
It seems better since I unlocked the bootloader and the phone reset itself again. Don't think I had a drop in wifi yet. Still testing tho..

SimpyD said:
That is correct, I hate using my phone without a case. rather not break it to soon bad luck and all.. I'd hate to have to send it back before even using it lol..
It seems better since I unlocked the bootloader and the phone reset itself again. Don't think I had a drop in wifi yet. Still testing tho..
Click to expand...
Click to collapse
Good luck.

My Nexus 6P is doing the exact same thing and I think its something to do with several 7.1.1 updates and 7.1.2 update. Because wifi was fine until it updated like 5 times.

bacu12 said:
My Nexus 6P is doing the exact same thing and I think its something to do with several 7.1.1 updates and 7.1.2 update. Because wifi was fine until it updated like 5 times.
Click to expand...
Click to collapse
You can always try clearing the system cache and seeing if that helps. It probably won't but it's always worth a try. You can also go into WiFi Assistant under settings / Google / Networking and tick the opposite of whatever its currently set at and see if that makes any difference.

I went ahead and RMA'd my phone hopefully I can get a decent replacement. wifi start going weird again in couple days and phone would randomly reboot doing nothing and sometimes staying on the android logo
while booting. What a pain so far..

Welp my phone finally arrived back futuretel replaced the Motherboard and a component doesn't say what and factory reset the device.
Been 2 days now with no drops in wifi or anything.. Hopefully no more problems. All in all took about 2 weeks and that is with 2 holidays
so not bad..