Develop Bugs

[Q] No internet through WiFi after few minutes, still connected

Hi guys,
I've searched the whole forum but I couldn't find any other thread about my problem.
When I connect my HOX to WiIF (Sitecom WL-370 - 300N Gigabit Dualband Router) everything works fine at first, but after a few minutes (5, or sometimes 15 minutes) I've got no Internet anymore but I'm still connected. Also WiFI Analyzer still detects the network. I've this problem both on 2.4 GHz as on 5 GHz. I've also tried switching channels.
The strange thing is, I can still receive a WhatsApp message but I can't send any, also I can't browse on the Internet or things like that.
After turning my WiFi off and on it works fine again for the few minutes..
Best Wi-Fi performance is turned on and the other devices at home haven't got this problem.
Anyone having the same problem or knows a solution?

I've got the same problem and it seems to be totally random. What i noticed is that my Google Play Store always stops working (no connection) shortly after i turned on the phone (~10 minutes). Switching Wifi off and on again doesn't seem to change it, i need to restart my HOX to get it working again while other apps connect just fine after turning Wifi off and on again.
Edit: Stock Vodafone ROM (1.28.161.9)

I have the exact same issue and i went through every setting in my router trying to fix this.
I would turn on my WIFI, connect to my home network, and start downloading. After a few minutes it'll either stop (the dl percentage not change) and then if i reload the market/youtube/browser or any app that users the net, it'll say no connection.
The weird thing about this is that it LOOKS like i am connected to wifi (in the notification bar).
This may be a separate issue, but i tried to turn it off and then on again to get around the issue. This time around i would try to connect to my home wifi and it'll just say 'Saved' and then the network would go out of range.
I am running Leedroids rom.

I might have found a solution:
Under Settings -> Wifi -> Menu -> Extended there is an option for Wifi Power Saving. After unchecking it all my connectivity problems are gone.

May be worth trying a static IP configuration, if you know enough about ip4 to do it. I've seen problems with android Wi-Fi since version 2.2 - if your router issues an indefinite dhcp lease, it can show exactly the symptoms you describe. Only a possibility but worth a try.
Sent from my HTC One X using XDA

I have the exact same issue - the wireless shows connected yet you cannot browse the Internet etc. I have also tried every setting on the Wireless AP without any success. Even tried static IP and that does not fix it either. Whilst other devices in the house are ok...
The weirdest thing is though it does not happen everywhere i.e. at other places like work (where at least the same type of AP is in use) or at my brothers' house (where he has a Linksys). This is pretty much the only thing that bugs me with the HTC - the only workaround I have found is to make sure that WiFi is kept on only at times when plugged in - this doesn't actually fix the issue but it does mean that the phone will disconnect the WiFi and get a new connection next time it wakes up - this way I find I get the problem much less than when I have it set to Always.

I might have found a solution:
Under Settings -> Wifi -> Menu -> Extended there is an option for Wifi Power Saving. After unchecking it all my connectivity problems are gone.
Click to expand...
Click to collapse
I already unchecked it but it didn't solved my problem
May be worth trying a static IP configuration, if you know enough about ip4 to do it. I've seen problems with android Wi-Fi since version 2.2 - if your router issues an indefinite dhcp lease, it can show exactly the symptoms you describe. Only a possibility but worth a try.
Sent from my HTC One X using XDA
Click to expand...
Click to collapse
Also no success
I have the exact same issue - the wireless shows connected yet you cannot browse the Internet etc. I have also tried every setting on the Wireless AP without any success. Even tried static IP and that does not fix it either. Whilst other devices in the house are ok...
The weirdest thing is though it does not happen everywhere i.e. at other places like work (where at least the same type of AP is in use) or at my brothers' house (where he has a Linksys). This is pretty much the only thing that bugs me with the HTC - the only workaround I have found is to make sure that WiFi is kept on only at times when plugged in - this doesn't actually fix the issue but it does mean that the phone will disconnect the WiFi and get a new connection next time it wakes up - this way I find I get the problem much less than when I have it set to Always.
Click to expand...
Click to collapse
Yeah, exactly, I've got the same problem. At school I've got no problems with the WiFi. I already send a message to HTC and I'm waiting on there answer.

I have kinda the same issue.
Using a HOX and at work I'm connected to Wifi and I can browse. At my house I can connect to the wifi, my IP is right that I'm getting from DHCP (I even tried putting in a static IP) but I can't browse
I also have a HTC Sensation, same setup and it works. The sensation can browse at work and at my house.
Why would this be?

Tried all sorts of solutions, but the only one that works is disabling the N-band and only leave B and G. This means that your laptop won't connect with the faster N, but at least the HOX works (what's more important )

Well I tried broadcasting a separate SSID on the b/g interface only for the exclusive use for the hox but that hasn't made any difference...my workaround is to have tunein radio in the background streaming whilst surfing...if I get bored of that solution my next workaround will be to trade the hox for an s3 as much as I despise TW...
Sent from my HTC One X using xda premium

I tried all the bands "B, G, N" and nothing works. So tired of this crap. Think I might just get a S3

RenVilo said:
I tried all the bands "B, G, N" and nothing works. So tired of this crap. Think I might just get a S3
Click to expand...
Click to collapse
I was thinking to do the same but there is no chance in hell of me doing that after I compared my HOX with a display model at the phone shop. Pentile screen vs LCD on the HOX? HOX = Sharper and better whites - the white on the S3 is bluish and so obvious. Another thing also I noticed is that the aggressive auto brightness on the S3 is too much - you won't tolerate it and you will likely be forced to manually adjust all the time. That plus reading that the S3 goes through the battery like no mans business when on standby unless you turn off all the features and put it in power save mode (might as well buy a Nokia then) at least the HOX uses the Ninja core and actually does save your battery in standby mode.
Anyway - the reason I replied is that I found a workaround (note, workaround does not mean a fix) - I put in a wifi extender in an area where I tend to spent most of my time with the HOX - this has not fixed the problem per se but rather seems to have elevated it somewhat. Basically now if the HOX drops from the main offending AP it automatically gets hooked up on to the extender and carries on working! I say this because (and I saw this only twice so far) I realised that when the phones Internet connection stops and you load a new page it timed out and get page cannot be found but when I hit refresh it works again you do notice a 3-4 second lag (this never happened before the extender came into play). Not sure if anyone else has tried this but I got a Linksys/Cisco extender for £69 and so far at least it has given me a workaround. Of course your mileage may vary...so don't splash out on an extender and come and blame me if it doesn't work for anyone here...

I am also having this issue with my HOX has anyone found a fix for this?
i have tried everything listed and nothing works.
its weird though because i have NO issues on my home network, but my network in my apartment here and at work network i get this issue

!!
bbbbbbbbbbbbbbbbuuuuuummp any fixes??? this sucks !!!!

What versions of android you guys have? Stock, sense, vanilla android, ics, jelly bean? Because I didn't encounter this problem when running stock or ics custom roms. After I updated hboot to 1.31 and tried different jelly bean sense roms it appeared. I also tried some stock android roms (ice cold jelly and liquid smooth) and wifi seemed to work fine. So is this sense problem only?

Ot1s said:
What versions of android you guys have? Stock, sense, vanilla android, ics, jelly bean? Because I didn't encounter this problem when running stock or ics custom roms. After I updated hboot to 1.31 and tried different jelly bean sense roms it appeared. I also tried some stock android roms (ice cold jelly and liquid smooth) and wifi seemed to work fine. So is this sense problem only?
Click to expand...
Click to collapse
The only change for me is update to HBOOT 1.31 and then things started happening. Otherwise runnin 4.0.4.
No workaround so far, at least i have not founf a way.

[Q] Wifi loses connectivity after period of inactivity

Hello,
I've searched around the Epic 4G Touch forums as best I could, but sadly I couldn't find anything that was exactly this problem (although I found some interesting articles about wifi sleep time but they don't seem to apply). I'm experiencing an annoying issue where I can connect Wifi just fine, but if the phone is left for a small period of time (~10 minutes), wifi appears as if it's still connected, however it cannot send/receive data. When this happens, the wifi status says it's "connected", but there is no data connection. The only way to to get the data back is to turn off wifi, wait for 3/4G connection to initialize, then turn Wifi back on to refresh it...then it's fine again until I set the phone down again.
I had this problem on stock EL29, so I rooted and flashed Phantom Blazer ROM (very cool ROM, but I'm still experiencing the same issue). After reading the threads on here about wifi sleep times (apparently they're backwards with ICS roms), I've experimented with every setting, yet I still have the same issue--Wifi is fine as long as I'm using the phone, I set it down, after about 10 minutes pick it back up, says it's still connected, but no data connection.
has anybody experienced this problem with this phone? I'm about to unroot my phone/go back to factory so I can take it in to a Sprint store, the problem is they (trying not to be offensive) don't seem to know very much about this device. I thought I'd ask the pros before I return it, get an iPhone, and have to eat my words about how cool Android is vs. iPhone in front of all my friends. I'm hoping there's a reliable ROM or app that can resolve this vs. having to just replace the device!
Thanks for your help!

I'm not the only one
I'm not the only one with this problem:
edit: I can't post links to androidforums.com or anywhere else, but this same problem is all over the interwebs and nobody has a solution.
I'm sure it's not my router as my ASUS tablet/laptops/girlfriend's iPhone experiences no connectivity problems. I'm thinking this is a hardware problem with some of these devices. I will unroot/reset to factory tonight and let you know what happens.

What channel is your router on? And what type is it A/B/G/N?

This is s known TW ICS bug, most likely kernel related. Almost everyone is having this issue and there is no fix until Samsung decides to repair it. There are quite a few posts similar to this one. If you're using XDA's search function, it's not very good. Try using Google next time and search XDA that way.
Sent from my SPH-D710 using Xparent ICS Tapatalk 2

Hey guys, thanks for the response. Just before I unrooted/reset to factory I tried one last solution--download an app called "Wifi Fixer". It has resolved a lot of these problems. It's not 100%, but after testing it for a day so far, I've only had to manually refresh the connection once or twice. It's a lot better, even liveable, and I won't be resetting to factory afterall, at least not until Samsung provides an update. So if anyone is having the same problem, try Wifi Fixer, hopefully it gives you a similar level of success...I'm not super happy about having to run another background process all the time, but it doesn't seem to affect battery, and the fix it provides is worth it to me.
Cheers!

Huh - a couple of things. Noticed this problem crept back in FF18 and didn't know why until I went back and checked the wpa_supplicant.conf that I'm using. The line ap_scan=2 was missing; after adding it back in the signal strength is back to full and stable.
I'll bump the thread but it appears the config changes here still hold after all:
http://forum.xda-developers.com/showthread.php?t=1569348
This should also avoid having the WiFi fixer there as you can specify the country in wpa_supplicant.conf manually.

Thanks for looking in to this! A couple questions from a noob like me though:
When you say the problem crept back in FF18 ... what does that mean? Is that something that exists in the "stock" version of the Epic 4G touch from Sprint?
The manual config file tweaks you're describing ... is that something I can perform myself?
Basically I'm wondering if it's "safe" to revert to stock in order to get consistent wifi signal, or if it's something I'm experiencing because of the ROM I'm using.
Thanks!

Wi-Fi unreliable

Recently I've been having problems with Wi-Fi. My phone and nexus 7. They both stay on blue bars all the time claiming they're connected to Google servers. And it'll work good for about 20 seconds and then I'll have no connection for about a minute. Bars will stay blue like its connected and WiFi show that it's fill signal but pages won't load, apps will timeout and YouTube videos won't stream. Makes it impossible to download any Roms or apps at times. This just recently started happening. Videos will stream good for maybe 2 minutes tops. Then pause, after a minute Wi-Fi will stay streaming and going again by itself and stream. I haven't changed my router or is settings. I have static ip's assigned too. All other computers work just fine for internet. Never a problem.
I've tried changing kernels, Roms, complete wipes and reinstalls. Rebooted the router. Nothing fixes it. I'm getting really frustrated. I'm at the point where I'm going trio go buy a new router just cause I want to use 5ghz. Anyways, any suggestions to solve this?

There may be an error in aosp code that can cause wifi instability: http://forum.xda-developers.com/showpost.php?p=35146886&postcount=5128

mwalt2 said:
There may be an error in aosp code that can cause wifi instability: http://forum.xda-developers.com/showpost.php?p=35146886&postcount=5128
Click to expand...
Click to collapse
Weird how it affects just my device in an entire thread with a ton of people using the rom and same kernel.
I went and picked up a new router. I'll see if that fixes it. Thanks for the input though. I appreciate it.

Didn't help with new router. My WiFi still cutting out like crazy on Franco kernel. Almost as soon as I turn off screen. But its not turning WiFi off. Just goes into some sort of state where nothing comes through. When screen on everything is fine though now.

In Wifi settings, you could try unchecking "Avoid Poor Connections" and see if that helps.
Also do you have any other devices at home on the same wifi network - do they experience the same issues, I know where I am if we get a lot of rain, it causes intermittent internet slowdowns, I had similar issues and after testing other devices found this to be my problem not my Wifi.
Also, have you got any cordless phones in the house that might run on the same frequency?
I still have an issue keeping wifi at 100% d/l when the phone is asleep, even though the setting is for always on. It must be a hardware thing for me because every rom I've tried from ICS to the latest JB exhibit the same issue. If I am in a desperate need to d/l a large file on my phone, I just temporarily change the screen display off timer to 10 minutes of so so the wifi will stay at max d/l speed.

https://play.google.com/store/apps/details?id=com.ratcash.wifiperf
Could try this I use on my gnex for voip
Edit I am on a galaxy nexus forum
Sent from my Nexus 7 using Tapatalk 2

Ya avoid poor connections is unchecked. And wifi optimization is unchecked. I've tried putting my router on full auto, tried setting static ip addresses for everything. Changing from wireless n to wireless g. Changing security to off as well. Using the 5ghz band instead of 2.4. The nexus 7 is working perfectly fine with the new router. But my galaxy nexus is totally unreliable. Weird is that it just started happening within past couple weeks. And actually, it was good for the first day or so after new router. I can confirm all other wifi devices jn the house work just fine without any hiccups. I've never had a problem with other devices. No dropouts or anything. It's really puzzling me!
One thing I found weird, if I disable wmm on my router, my nexus 7 and galaxy nexus will not connect. Anyone else get this?

I hope you also have your router firmware completely up to date.

Please read forum rules before posting
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CADude said:
I hope you also have your router firmware completely up to date.
Click to expand...
Click to collapse
Ya my router auto updates itself. Its a Cisco EA6500 in case your wondering and is helpful.

I use my wifi at work and it's very unreliable. At times going into an endless disconnect/reconnect loop. Sometimes restarting the wifi helps or putting it in and out of airplane mode. Other times nothing helps except a reboot of my phone. Some apps may make the issue worse. I don't think there is a fix and waiting for google to fix the flaw a user pointed out earlier.
Sent from my Nexus 7 using Tapatalk 2

chrisinsocalif said:
I use my wifi at work and it's very unreliable. At times going into an endless disconnect/reconnect loop. Sometimes restarting the wifi helps or putting it in and out of airplane mode. Other times nothing helps except a reboot of my phone. Some apps may make the issue worse. I don't think there is a fix and waiting for google to fix the flaw a user pointed out earlier.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
Possibly a 4.2 issue. But its not affecting everyone it seems. But i see that there is a huge thread about this at the google site. Not an isolated case

When you say you set a static ip, you set one from the router, have you tried setting a static ip on the phones wifi advanced options as well?
Have you tried different radios?
Sent from my Galaxy Nexus using Tapatalk 2

Yup has happened to me mine connects to the net but has grey bars and doesn't open any websites and apps dont connect to the net a reboot solves the problem

chrisinsocalif said:
When you say you set a static ip, you set one from the router, have you tried setting a static ip on the phones wifi advanced options as well?
Have you tried different radios?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I set static on both router and the phone. I've tried all the north american radios. None of the euro ones. no effect. Sticking to the latest North American radio for now. I've managed to make it work sorta with CM10.1 with stock kernel on completely fresh install. It works, but the down arrow on the Wi-Fi icon stays lit almost 100% of the time. no idea why, only other device that was on all yesterday was the nexus 7, and that was on the 2.4ghz and phone the 5ghz. Huge wlan_rx_wake!

It's likely this:
http://code.google.com/p/android/issues/detail?id=40065&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars&start=1000
See if that sounds about right and if so, you'll just have to wait for a Google Patch.

whitedragonz83 said:
It's likely this:
http://code.google.com/p/android/issues/detail?id=40065&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars&start=1000
See if that sounds about right and if so, you'll just have to wait for a Google Patch.
Click to expand...
Click to collapse
Yeah. Just don't understand how so few here experience this. And only my phone, not my nexus 7 gets this.

M3drvr said:
Yeah. Just don't understand how so few here experience this. And only my phone, not my nexus 7 gets this.
Click to expand...
Click to collapse
When i first updated to 4.2, I was getting crazy dropouts. After unchecking the Wi-fi optimization, it was more consistent but still drops out frequently while at work. There is a known bug with the wifi driver that hasn't been addressed for years, but still trying to find the original articles describing the problems.
It seems you are having tons of issues, worse than most.
If you are having a problems suggested on this site, maybe this can help.
http://goo.gl/voSxF

It affects me as well. Completely random. Everything appears fine except that instead of blue, the icons are grey. Turning off wifi and turning it back on fixes it.
In the link above, there is a comment where you can submit more info for Google to help solving the problem:
http://support.google.com/nexus/bin/request.py?contact_type=bugreport&src=7679593

chrisinsocalif said:
When i first updated to 4.2, I was getting crazy dropouts. After unchecking the Wi-fi optimization, it was more consistent but still drops out frequently while at work. There is a known bug with the wifi driver that hasn't been addressed for years, but still trying to find the original articles describing the problems.
It seems you are having tons of issues, worse than most.
If you are having a problems suggested on this site, maybe this can help.
http://goo.gl/voSxF
Click to expand...
Click to collapse
the weird thing is, it just started happening about 2 weeks ago. It was perfectly fine up until then. Never had an issue with Wi-Fi. If this don't work i might try doing an entire wipe right back to stock and locking bootloader.

[Q] losing wifi connectivity- full bars but all gray

so, I've read around here on the XDA forum about problems with wifi connectivity where we have full bars for wifi but they are gray and you are not getting out. many describe my situation but I've not seen any real solutions...
my problem is that I can connect to my wifi router without issue but then a random amount of time later, sometimes fairly quickly and sometimes it's hours later, I will pick up the phone and see full bars but they are gray and I'm not getting out. I can try opening a terminal window and pinging the gateway/dns servers and can't even reach the gateway.
things I have tried:
- turned off MAC filtering on the wifi AP
- switched from a 5 GHZ wifi on the AP to 2.4 GHZ net on the AP and vice versa
- manually set the phone wifi preference to one or the other (5 or 2.4)
- battery pull on the phone
- delete network settings for my AP and reconfigure
I have not yet tried a static IP config on the phone but I can easily try that... {edited to add} well, I tried static config and that didn't help at all...
one other tidbit of info, I have a work Blackberry with wifi and it never loses wifi connectivity so this is a problem unique to my Nexus.
I'm running Cyanogen 10.0.0-toro and no, I haven't tried a full wipe and reload yet.
thoughts or suggestions?

I'm not trying to threadjack here, but I just wanted to share my experiences.
I've been have the exact same thing happen to my phone (Nexus maguro). I've tried every JB rom I could find, several different kernels and my wifi eventually always goes grey on me. All network activities stop. I'm back on stock everything right now and it still happens.
It happens on my home wifi as well as work wifi.
I'm about to puttstock ICS on my phone and try that out for a couple days.
Anyway, good luck with your problems, i'm going to follow this thread in hopes you'll get a solution that may help me.
If I do figure anything out i'll post back.

jrmacarthur said:
I'm not trying to threadjack here, but I just wanted to share my experiences.
I've been have the exact same thing happen to my phone (Nexus maguro). I've tried every JB rom I could find, several different kernels and my wifi eventually always goes grey on me. All network activities stop. I'm back on stock everything right now and it still happens.
It happens on my home wifi as well as work wifi.
I'm about to puttstock ICS on my phone and try that out for a couple days.
Anyway, good luck with your problems, i'm going to follow this thread in hopes you'll get a solution that may help me.
If I do figure anything out i'll post back.
Click to expand...
Click to collapse
seems that this is a topic that has been posted on a bit over time with no real single culprit or fix. I'll post back if I figure anything out... I know in the Cyanogen thread, I saw info that stated that the MAC address of the phone was changing and I'm going to try and determine if that is happening to mine.

I have the same issue. Sometimes even when i pick up the phone, if i look fast enough i see that the Wi-Fi bars weren't even there! Thats only 1 out of 5 times though. The other time its usually just grey bars. Sometimes it actually will click back and they'll flash to blue and grey 2-3 times and then go solid blue. Then sometimes like you, they'll stay grey. I've tried everything too...reverting to stock, Different kernels, ROMs, routers, static IP, 2.4 or 5ghz, full auto mode. The only fix that makes it a little more reliable, is using Wi-Fi PM Fast. But even that, is not reliable. I'd say its about 50% reliable then, for a huge sacrfice in battery life. For me i've noticed this started to happen with 4.2. Before that i never had a problem. All other devices though no problem. My Nexus 7 is just fine. But the galaxy nexus, no matter what router or where i am, the Wi-Fi is totally unreliable. For me, it happens within 2 minutes that it will disconnect most times. Then 1 in 10 times it'll be fine for 10 hours.
In all honesty, i've given up. Just come to deal with it. Use mobile networks when i'm not needing to download. I can download files and stream music just fine too. If there is traffic going through, it never disconnects. But when its just sitting there without traffic, it disconnects, or, loses connection to google servers i should say.

well that's not good to hear...

I installed stock 4.0.4 a couple days ago and have not had my wifi go grey on me yet.
Sent from my Galaxy Nexus using Tapatalk 2

jrmacarthur said:
I installed stock 4.0.4 a couple days ago and have not had my wifi go grey on me yet.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
yeah, I love Cyanogen so not willing to go back to stock... waiting for them to finish 10.1 and I guess I'll see how it behaves then.

Hi all,
Just to say that I have the same problem. I have been upgraded from ICS to 4.2 and nothing had happened but I had to downgrade to 4.1.1 (AOKP Build 4) due to other issues and after that I started notice the WiFi problem.
At first I thought it was when the screen went off, but I has happened with screen on too. I have to turn WiFi off and the back on to connect properly again, very annoying.
As I said I started noticing this after I downgraded, but then again, I had used AOKP 4.1.1 before without this issue. I think that it is time to change my phone :/

tgeery said:
so, I've read around here on the XDA forum about problems with wifi connectivity where we have full bars for wifi but they are gray and you are not getting out. many describe my situation but I've not seen any real solutions...
my problem is that I can connect to my wifi router without issue but then a random amount of time later, sometimes fairly quickly and sometimes it's hours later, I will pick up the phone and see full bars but they are gray and I'm not getting out. I can try opening a terminal window and pinging the gateway/dns servers and can't even reach the gateway.
things I have tried:
- turned off MAC filtering on the wifi AP
- switched from a 5 GHZ wifi on the AP to 2.4 GHZ net on the AP and vice versa
- manually set the phone wifi preference to one or the other (5 or 2.4)
- battery pull on the phone
- delete network settings for my AP and reconfigure
I have not yet tried a static IP config on the phone but I can easily try that... {edited to add} well, I tried static config and that didn't help at all...
one other tidbit of info, I have a work Blackberry with wifi and it never loses wifi connectivity so this is a problem unique to my Nexus.
I'm running Cyanogen 10.0.0-toro and no, I haven't tried a full wipe and reload yet.
thoughts or suggestions?
Click to expand...
Click to collapse
I'm on Muzzy 4.2.2 and I'm currently having the same problem. It's not a new problem since I remember having it months ago (disabled my phone's WiFi because I kept missing emails and other notifications - grew tired of dealing with it). I thought it was my router, so I swapped it with a newer one recently, but it carried forward (old router was TRENDnet Draft N and the new one is ASUS RT-N66U).
I would like to know how to properly troubleshoot this problem.

I'm glad I didnt have to create a thread for this. I have been facing this problem quite a lot. I can confirm that WiFi works absolutely fine until 4.1.2, whether it is stock or CM10 (I havent tried the other ROMs yet). I have faced this problem only from 4.2. It still exists on 4.2.2. Happens on all the ROMs I have tried till now including CM10.1 nightly as well as the stock factory image.
When the phone is sleeping, it seems to lose WiFi connectivity and when woken up, the WiFi bars is grey though it is full. If I am very lucky, it will turn blue automatically. Most of the times, I have to switch WiFi off and back on for it to connect properly.
Anyone knows the root cause for this? In case this has been discussed in any other thread?

subhramani said:
I'm glad I didnt have to create a thread for this. I have been facing this problem quite a lot. I can confirm that WiFi works absolutely fine until 4.1.2, whether it is stock or CM10 (I havent tried the other ROMs yet). I have faced this problem only from 4.2. It still exists on 4.2.2. Happens on all the ROMs I have tried till now including CM10.1 nightly as well as the stock factory image.
When the phone is sleeping, it seems to lose WiFi connectivity and when woken up, the WiFi bars is grey though it is full. If I am very lucky, it will turn blue automatically. Most of the times, I have to switch WiFi off and back on for it to connect properly.
Anyone knows the root cause for this? In case this has been discussed in any other thread?
Click to expand...
Click to collapse
have you posted this information over in any of the threads where the developers are working such as Cyanogen in an effort to bring this issue to the forefront for more visibility?

I have had those wifi problems with every android version and rom I had on my GNex as far as I can remember.
Sometimes it will be able to reconnect but sometimes I have to disable and re-enable wifi to get it back.
I too thought that it might have been my crappy router as I have had multiple problems with it over the years (some Linksys router).
This is really annoying because it won't receive any e-mails until I randomly decide to have a look at my phone. :/

Fabur87 said:
I have had those wifi problems with every android version and rom I had on my GNex as far as I can remember.
Sometimes it will be able to reconnect but sometimes I have to disable and re-enable wifi to get it back.
I too thought that it might have been my crappy router as I have had multiple problems with it over the years (some Linksys router).
This is really annoying because it won't receive any e-mails until I randomly decide to have a look at my phone. :/
Click to expand...
Click to collapse
trust me, I understand your frustration... some days, I can go almost all day without loosing wifi data throughput and other days it won't last 10 minutes without going to gray bars.
unfortunately, no one is sharing any fixes which tells me that no one has a good handle on the problem.

Same issue for me on stock Android 4.2.2. Leave WiFi on overnight and when I wake up its connected to WiFi but gray bars...
Sent from my Galaxy Nexus using xda premium

The update to 4.2.2 drivers have fixed all WiFi issues for me. For the first time since 4.1 I can now use WiFi optimization now. And WiFi is fully reliable.

tgeery said:
so, I've read around here on the XDA forum about problems with wifi connectivity where we have full bars for wifi but they are gray and you are not getting out. many describe my situation but I've not seen any real solutions...
my problem is that I can connect to my wifi router without issue but then a random amount of time later, sometimes fairly quickly and sometimes it's hours later, I will pick up the phone and see full bars but they are gray and I'm not getting out. I can try opening a terminal window and pinging the gateway/dns servers and can't even reach the gateway.
things I have tried:
- turned off MAC filtering on the wifi AP
- switched from a 5 GHZ wifi on the AP to 2.4 GHZ net on the AP and vice versa
- manually set the phone wifi preference to one or the other (5 or 2.4)
- battery pull on the phone
- delete network settings for my AP and reconfigure
I have not yet tried a static IP config on the phone but I can easily try that... {edited to add} well, I tried static config and that didn't help at all...
one other tidbit of info, I have a work Blackberry with wifi and it never loses wifi connectivity so this is a problem unique to my Nexus.
I'm running Cyanogen 10.0.0-toro and no, I haven't tried a full wipe and reload yet.
thoughts or suggestions?
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same thing happened to me on toroplus sourcery 5.1, after trying everything i could think of and talking to one of the devs, i finally did a fresh download of rom and gapps. wiped cache,wiped dalvik, factory reset, wipe system, deleted android folder off of storage then installed the fresh download of rom and gapps and its been working great for me since. hope this helps.

M3drvr said:
The update to 4.2.2 drivers have fixed all WiFi issues for me. For the first time since 4.1 I can now use WiFi optimization now. And WiFi is fully reliable.
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Can you elaborate on this? I've flashed 5 different modems and still get this problem... it happens to my cell service bars, as well. Would love to know what the cause is.

aqcon said:
Can you elaborate on this? I've flashed 5 different modems and still get this problem... it happens to my cell service bars, as well. Would love to know what the cause is.
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i just know ever since moving to a 4.2.2 kernel that has the 4.2.2 drivers my wifi has been stable. I know there was a post in the anarkia thread with the ak kernel that had the drivers. but i believe most any 4.2.2 kernel would have them implemented. i do have the newest bootloader and radio too. but i know as soon add i got the 4.2.2 drivers all issues were resolved wifi wise. of course i think if you have a 4.2.2 kennel you'll have them.

M3drvr said:
The update to 4.2.2 drivers have fixed all WiFi issues for me. For the first time since 4.1 I can now use WiFi optimization now. And WiFi is fully reliable.
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Click to collapse
I'm looking forward to that update - I've been watching the Cyanogen threads for when I think the 10.1 has matured enough to become my daily driver... good to know you've had positive results!

Temporary solution
me facing same issues , Solution would be to use an app called wifi fixer by zanish-g1 from the play store ...
it worked for me !! :good:

CM11, random data blackout

Hoping this might ring a bell with anyone who has fiddled around with the GN and CM11.
The CM11 update notification won me over and I pushed CM11 (11-20140308 snap - toro) a few weeks ago.
Interestingly enough I saw a HUGE battery drain improvement. Possibly an oddity unless others have noticed this too.
Anyway, the big issue when using CM11 is random data blackouts. The phone can be on 3G, 4G, or Wifi and it will act like there is no data access. eBay app and Chrome give the 'no connection' type error with other things like email just not updating.
The fix so far is to reboot the phone. As soon as it comes back up the data portion works perfectly. Not the most time effective solution especially if trying to get important data on the go.
I know Google has marked this phone as past it's prime in terms of support, but with CM still supporting builds for this device I'm hoping something may sound familiar and somebody could give some words of wisdom for this problem. With the Nexus 6 device slotted to be released in the summer/fall timeframe I'm holding out on replacing the GN.
Ideas anyone?

change other kernel/boot.img
Sent from my Galaxy Nexus using XDA Premium 4 mobile app

well yes but I was also interested if anyone else may have been experiencing this.

if this is the same issue I've seen in some ROM threads then yes you aren't alone.
instead of doing a reboot, have you tried toggling airplane mode on then off? if that works, you'll spend way less time vs waiting for boot up

glad to know I wasn't alone on this one!
The 'no network found' issue just came up a minute ago. Probably had tried the airplane mode before but in a hurry I defaulted to restart.
The quick switch between AP mode and back did bring the connection back, although with the phone starting up fairly quickly the different between doing AP mode or restarting seems to be differently by only a second or two.
If this has been seen with some ROMs, what have people turned to as an alternative?