Develop Bugs

Wifi Issues in 4.2.1

Not sure if it's just me, but on my Nexus I am connected to wifi while at work and at home. When the screen turns off so does my data about 10% of the time. When I turn the screen back on it will show just the cell bars (full signal) with no data icon (H, 3G, E, etc.) and no wifi symbol. After unlock it will try and re-connect and eventually does. In my wifi settings I have keep wifi on during sleep set to "always", and wifi optimization turned off (<-- not sure what this does).
Anybody else with this issue?

Yeah I get this issue too after the update...even with WiFi sleep set to never....and the new option for WiFi performance switched off! Any help devs?
Sent from my Galaxy Nexus using xda app-developers app

Same for me, but try this : (this is what i do)
go to wifi settings and turn it on, wait for it to connect then turn it off, then on again.
this solves it for me but i have to do this every time i want to connect to a wifi network

This always happens to me too I just thought it was because of the new wifi-optimization so I never thought twice about it...

Please read forum rules before posting
Questions go in Q&A
Thread moved
Thank you for your cooperation
Friendly Neighborhood Moderator

Same
I am having the same problem.

Now that this is buried in Q&A I expect that it won't been seen as much.

Could any deva compare the driver for the WiFi from 4.1 and check the changes using a code compare app? Should be Peru ready if someone can tell me how to get at the code inside the files I could do it..... It might help
Sent from my Galaxy Nexus using xda app-developers app

Same problem here, any fix/solution for it?

judging from responses I guess many have tried/failed to find resolution.
in my case, and I THINK it is since 4.2.1 - can't prove it - the reception is just abysmal on my home ap [repeated, one single ap id/login]. nexus 7 beyond about 4 meters from any of the devices gets a flaky connection, will drop, reconnect in the background repeatedly. if I use wifi analyzer on the nexus it shows a "fair" signal at that spot - use it on a better device and of course it shows a better [green] signal .. surprise surprise.
my geriatric Optimus P509, the galaxy s4g, ipad mini, and venerable thinkpad x120e get good signal on the very spot.
I've tried off/on wifi, cache clearing - no sacrificial animals however...
any clues out there?
oh, and as some few others have noted, I get a different signal indication in portrait mode vs. landscape, no matter how my fingers are arranged. and just the act of flipping it into the horizontal will cause a disconnect/reconnect.
everlong81 said:
Same problem here, any fix/solution for it?
Click to expand...
Click to collapse

same problem, don't know how to solve. I guess (just guess) it may be relavent to power management, because it often happens at night, when I left the phone untouched for several hours. I think during this long period of time the phone goes into some kind of "power saving mode", which affects the wifi and data connection.

I'm in the same boat, I've got the same problem with mi wifi. Everything works great, except when I turn off the screen and my wifi begins to act crazy turning on/off all by itself.
I've tried latest aokp latest cm 10.1, different kernels but nothing. I'm thinking to go back to 4.1.1 to see will the issue still be there.

Report back if it works good in 4.1.1.

everlong81 said:
Report back if it works good in 4.1.1.
Click to expand...
Click to collapse
After flashing back to CM 10.0, everything is working perfect again, no wifi issues at all.
So it's a 4.2.1 issue... Maybe a modem + 4.2.1 issue? Or is this issue specific only for a few devices?
I'm using LF1 modem.
Sent from my Galaxy Nexus using xda premium

I don't have this issue.
Sent from my Galaxy Nexus using Tapatalk 2

akira02rex said:
I don't have this issue.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
That's great! For you...
I have this issue.
Sent from my Galaxy Nexus using xda premium

I have the same wifi issue as well. When the phone is asleep wifi will drop and I don't get email notifications. I'm thinking about going back to 4.1 as well.

Try to untick the wifi optimization. Mine one seems ok, without wifi drop after untick it.
Sent from my Galaxy Nexus using xda premium

I'll give it a shot, but I think that I have already tried that.

nickcct said:
Try to untick the wifi optimization. Mine one seems ok, without wifi drop after untick it.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
I tried this too but it didn't helped. Yesterday I've flashed rasbeanjelly and my WiFi worked fine, but today again WiFi drops everytime my GN is in deep sleep.
Don't know what to try or do next...
Sent from my Galaxy Nexus using xda premium

Sprint note 2 losing connection

Anyone that has a sprint note 2 all of a sudden lose data connection for like a few minutes? If so have yall found a fix? Kinda annoying when the time you really need the phone the internet isnt working right away. Other than that the phone is still amazing!
Sent from my SPH-L900 using xda app-developers app

hey mate.
same problem here in Italy with TIM operator.
They said me that is a problem of cell location as the problem occours only when I am in some location in my city and not, for example, in my work city (Milan)
Furthermore, I have not experienced this problem with other operators which I tried so in my case it's absolutely a provider problem! Have you tried another sim card?
(I'll descrive my problem as you can say we are talking about the same: when I'm connected (and only when I am!) I see the icon H/3G in the top right of the device. In few minutes this icon disapppears and for 1-2minutes I'm not able to use data connection, even if the data is still active of course!After this short period the icon appears again and so on and on!).

darodiho said:
Anyone that has a sprint note 2 all of a sudden lose data connection for like a few minutes? If so have yall found a fix? Kinda annoying when the time you really need the phone the internet isnt working right away. Other than that the phone is still amazing!
Sent from my SPH-L900 using xda app-developers app
Click to expand...
Click to collapse
Happens to me randomly too!

Well, at least it's not just me. Don't know if that makes it better or worse. Awesome phone, but this has been annoying lately because it keeps going out at really inopportune moments. Guess it's just a tower thing.

wlan_rx_wake kills my battery :(

I've been having this issue now for a while, but only on some wifi networks, not all. I am attempting a solution, I have tried flashing different kernels to no avail. I'm currently running monxified v8-01, with perseus kernel.
Anyone find any solutions other than to disable wifi?

How long does your battery last on average?
Sent from my GT-N7100 using xda premium

Goto wifi settings thn advanced then keep wifi on during sleep...then select never increase data usage

kylec said:
How long does your battery last on average?
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Really long. Except when connecting to uni wifi due to kernel wakelock as above . No issues with home wifi.

nabilsweet007 said:
Goto wifi settings thn advanced then keep wifi on during sleep...then select never increase data usage
Click to expand...
Click to collapse
Not really a solution...fyi I want to keep my wifi on when it sleeps.

Daemos said:
I've been having this issue now for a while, but only on some wifi networks, not all. I am attempting a solution, I have tried flashing different kernels to no avail. I'm currently running monxified v8-01, with perseus kernel.
Anyone find any solutions other than to disable wifi?
Click to expand...
Click to collapse
I seem to be having the same issue and have been searching the web all day to no avail. Please let me know if you find a solution. My battery life was fine until a few days ago and I can't put my finger on what started the issue, but have narrowed it down to the wifi not letting the phone sleep.

3g data and wi-fi problem

Hi guys! :victory:
I have got a problem with my samsung galaxy nexus stock version,
without root or unlocked bootloader.
The problem is about the 3g connection and wifi when I turn off the display.
3g: when I turn off the display, after a few minutes, the phone loses the data connection. It is like it goes in power saving mode because when I
turn on the display the signal icon turns grey and after a few instants blu. In fact mail, notifications, and whatsapp's messages are notified with
a 10-15 minutes delay.
wifi: same problem, when I turn off the display I lose the signal. When I turn on the display, the wifi icon disappear for an instant, become grey and then blue. Until it turns blue I don't get notifications.
I have already done several factory resets, disabled power saving settings
and I don't use any power management apps.
SMS and calls works fine.
help me please

Welcome to the club. I have the exact same issue and had a thread going about this. Nothing i've done has solved the problem. Even gone right to complete stock rom. Same problem. I noticed this started happening with 4.2. Before that i didn't have a problem. Mine only happens on Wi-Fi, no issue on mobile network connecitons. As well it happens no matter what router i'm connected to. This should be in the Q&A and troubleshooting section though...
With W-Fi make sure its set to always on in advanced Wi-Fi settings and that minimize power is unchecked as well as avoid poor connecitons. Might help for you.

M3drvr said:
Welcome to the club. I have the exact same issue and had a thread going about this. Nothing i've done has solved the problem. Even gone right to complete stock rom. Same problem. I noticed this started happening with 4.2. Before that i didn't have a problem. Mine only happens on Wi-Fi, no issue on mobile network connecitons. As well it happens no matter what router i'm connected to. This should be in the Q&A and troubleshooting section though...
With W-Fi make sure its set to always on in advanced Wi-Fi settings and that minimize power is unchecked as well as avoid poor connecitons. Might help for you.
Click to expand...
Click to collapse
I think the problem started happening with 4.1
And I've all the settings you said :crying:

I've dealt with the issue since updating to all the 4.2.x Roms. Not sure what it is, but its here to stay.
Sent from my Galaxy Nexus using XDA Premium HD app

R: 3g data and wi-fi problem
Same me..I think it started with 4.2
I have 2 WiFi routers and have disconnection problems while screem off with only one router ( I know this router is crap but it should not happen, android should handle it)
Inviato dal mio Galaxy Nexus con Tapatalk 2

alexdemonumber3 said:
I've dealt with the issue since updating to all the 4.2.x Roms. Not sure what it is, but its here to stay.
Sent from my Galaxy Nexus using XDA Premium HD app
Click to expand...
Click to collapse
andQlimax said:
Same me..I think it started with 4.2
I have 2 WiFi routers and have disconnection problems while screem off with only one router ( I know this router is crap but it should not happen, android should handle it)
Inviato dal mio Galaxy Nexus con Tapatalk 2
Click to expand...
Click to collapse
do you have problem with the 3g also?

R: 3g data and wi-fi problem
diabolnik said:
do you have problem with the 3g also?
Click to expand...
Click to collapse
Nope..only with one WiFi router
Inviato dal mio Galaxy Nexus con Tapatalk 2

diabolnik said:
do you have problem with the 3g also?
Click to expand...
Click to collapse
No, fortunately. Only WiFi.
Sent from my Galaxy Nexus using XDA Premium HD app

Yeah my problems aren't on 3G. Rarely have I had that drop out. It's happened, but that's once a month tops.
I've gone to the point of buying a high end router to exchange my old router. No difference. I had a Cisco e4200 and now an e6500. Also had a D-link Dir655. Happened on all of those. Happens at Starbucks and at work too on their routers.
It's software problem for sure. And it can be fixed. And complaints have been put up on Google code site. There are at least 5-600 posts on that topic with people suffering the same problem. Why don't they fix it? No idea.

UPDATE
To let the wifi work, I have downloaded the app "wi-fi fixer" and using it I
fixed (just a workaround) the wifi issue!!:good:
But what can I do about the3G connection?:crying:

do you know if this problem is fixed with a custom rom??

diabolnik said:
do you know if this problem is fixed with a custom rom??
Click to expand...
Click to collapse
Not for me. It's a kernel issue though since the kernel is what takes care of the Wi-Fi. But no kernel or rom has ever fixed it for me. I'm trying that wifi fixer though now.

I have the same problem.. But mine is really bad.. My 3G drops for a long time or it just never comes back, I have to reboot several times.. Not sure wat the issue is..
Sent from my Galaxy Nexus using xda app-developers app

[Q] NK3 Update Issue

Has anyone had problems or noticed a lack of signal after applying this update? Before this, I almost always had full bars and very speedy (27 Mbps avg) 4G Lte until I installed the build AUCU1BNK3 and now I only get 2 to 3 bars constantly dropping to 2. Plus when I go into additional settings for phone calls I get a SIM card error message. Additionally it has been dropping back more often to 4G and sometimes it even glances at Edge. I did not have this situation before. Could they have done something to slow it down cause web pages loaded fast before and now they load noticiably slower?

My whole phone seems f'ed since the update. Email Facebook.....

I have this issue too. I disabled HD Voice under networks and noticed an improvement.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app

Also having major wifi speed issues and the same issues with the network switching to edge since the update. I've contacted ATT twice today and they completely disregard this update as being the issue. I think I'm going to take my stuff to t-mobile and just switch
---------- Post added at 06:23 PM ---------- Previous post was at 06:18 PM ----------
Helen Keller: Since we are able to determine thatHD voise has no impact on your wifi network, replacement of the device will only result in getting the same model with the same 4..4.4 update is not an option. We need to do more troubleshooting and this could result in have the device tested at our Device Support Ctr.

I do see that I'm not the only one with the Sim card error. This has caused me a big problem as my gear s is not getting my calls forwarded.

I had the same problem. Did some research and found that other people with different Samsung device's had same problem. They said to clear cache and data for the phone app. Worked for me as far as gear s forwarding calls again.
Sent from my SAMSUNG-SM-N910A using XDA Premium HD app

edpete97 said:
I have this issue too. I disabled HD Voice under networks and noticed an improvement.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
Click to expand...
Click to collapse
Can you provide a bit more detail on where to disable that? There is no "Networks" setting. And with all the menus, I haven't found it. I also looked at settings on the call, didn't find it.

ewingr said:
Can you provide a bit more detail on where to disable that? There is no "Networks" setting. And with all the menus, I haven't found it. I also looked at settings on the call, didn't find it.
Click to expand...
Click to collapse
Settings\more networks\mobile networks\mobile data

I've been noticing wifi issues in certain apps, but not on the mobile network in those same apps. As to the loss of the network signal strength after the update. I haven't seen any changes in the bars.
Anyone noticing that the battery drains a little quicker after the update?

Raiden823 said:
I've been noticing wifi issues in certain apps, but not on the mobile network in those same apps. As to the loss of the network signal strength after the update. I haven't seen any changes in the bars.
Anyone noticing that the battery drains a little quicker after the update?
Click to expand...
Click to collapse
I went from averaging 5 hours of SOT to about 2. This update is terrible.

My note 4 won't sleep. Something is causing wake lock. Draining battery. How does this not get tested before release? Ugh.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app

srtpusher said:
My note 4 won't sleep. Something is causing wake lock. Draining battery. How does this not get tested before release? Ugh.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
Click to expand...
Click to collapse
Yep. Same problem here.

This update messed up my signal.. It forced me to update it after I postponed it however many times. I'm going to download the stock file in the general section and reflash it.