Develop Bugs

Wifi turning off itself?!

Hey guys,
need some help with my htc desire. Just bhought it couple of days back. Everything worked good, until today, as wifi turned itself off after 10-15 min on standby and automatically connects to 3G instead. Even if i turn on the wifi, it will say that the wifi is on, but its not actually connected I have to restart the phone for it to connect with wifi again. And the same thing goes over and over again. Has this happened to anyone?
Please help! :S
I have the orignal firmware, not rooted.

Sort of happening to me too, but after the phone is asleep for long periods, like overnight.
For the past few days, I leave it with WiFi on when I go to sleep, I wake up and WiFi was off. I switch it back on and the phone doesn't seem to use wifi, or it does but just hangs.
Only started happening after the last hard reset, was working fine before that.
I do have the sleep after 15mins setting on, but obviously that shouldnt switch off the wifi, just let it sleeps and should reconnect after waking up.
Waiting for a exchange for another phone due to another issue, but will keep an eye on this, might be the Setting Profile app I've installed that's causing the issue.

My wifi switched off by itself after going standby for sometime.
After I wake up the phone, it will reconnect to the wifi. Not sure if there's app to prevent the wifi from going into standby though.

myth1001 said:
My wifi switched off by itself after going standby for sometime.
After I wake up the phone, it will reconnect to the wifi. Not sure if there's app to prevent the wifi from going into standby though.
Click to expand...
Click to collapse
I have been using the phone for 6 days now, before this my phone could be on wifi all night, and when turned on in the morning the wifi will still be connected. Its strange this should happen now. I installed juicedefender yesterday and than uninstalled it again after trying it..might this has affected my wifi settings.

That's weird. I did installed Juice Defender and uninstalled it as well. Not sure if that's the cause. will do some search and see what I can find out.

FOUND!
We can actually control the Wifi Sleep policy by going to Settings> Wireless & Networks> Wifi Settings> Menu >Advanced> Wifi sleep policy!
Change it to never and it should work as before.

myth1001 said:
FOUND!
We can actually control the Wifi Sleep policy by going to Settings> Wireless & Networks> Wifi Settings> Menu >Advanced> Wifi sleep policy!
Change it to never and it should work as before.
Click to expand...
Click to collapse
Yes, I know about that setting, but once you wake up the phone, it should wake the wifi and it should reconnect. This is not happening, and in some cases it does switch back on and connects, but doesn't get onto the internet. Seems the phone is still trying to use the cellular network.
Leave it on all the time eats up battery, so rather have it on sleep after 15mins

myth1001 said:
FOUND!
We can actually control the Wifi Sleep policy by going to Settings> Wireless & Networks> Wifi Settings> Menu >Advanced> Wifi sleep policy!
Change it to never and it should work as before.
Click to expand...
Click to collapse
wow..ur fast..thanks! will try out this..and see until tomorrow if my phone is still shifting from 3g and wifi all the time
edit: yup..this was the reason. So now my wifi is connected 24/7 very happy for this as when it switched off before it started to use my 3G..i dont have unlimited plan so why pay for addional when u can use wifi at home

[SOLVED] Sleeping phone won't connect wifi when enabled by Tasker

Hi guys,
I have no data plan, and I use wifi at home. I have a Tasker script that turns wifi on when at home, but turns it off overnight to save battery and avoid cooking my delicate brains. At 6.30am, Tasker switches on wifi and normally the phone would then fetch email etc. whilst sitting on my bedside table, so when I wake up later and check the phone, everything is there waiting.
Recently, this has stopped working. Tasker is switching on wifi as normal, but wifi will not connect whilst the phone is asleep. If I wake the phone, wifi still won't connect however many times I wake it until I unlock the phone. Wifi then connects immediately. I have no problems holding a wifi connection at any other time of the day whilst the phone is asleep, and my wifi sleep policy is set to "never". It is only first thing in the morning I have this issue, so I assume it is related to Tasker switching wifi on whilst the phone is sleeping.
Anyone have any idea what could cause this? I changed from CM7.0.3 to CM7.1.0 recently, but I can't be sure if that coincided with my problems starting.
Thanks.
UPDATE:
I solved my own mystery in the end. I forgot to mention that in Tasker, as well as checking the time I am also doing a "cell near" check. When I remove that check everything work correctly. Tasker help mentions that cell location updates sometimes don't work reliably when the phone is sleeping, and that this is a bug in Android. I can only assume that updating from CM7.0.3 to CM7.1.0 introduced that bug for me.

wifi goes sleep even setting policy to "Always On"

I have set the Wifi policy to "Always on".
Many times (but not every time) when my One X goes into sleep mode, all data connections don't work. I notice it because I feel so strange there is no notification from Whatsapp and Line as usual. So, I press the power button and see no data connection at all. After a few second, 3G data connection appears but no wifi. Wifi then replaces 3G a few second later.
It usually happens and I feel so annoyed as I lost communication with my colleagues when One X is sleeping.
Is there somewhere in "Setting" that can override the "Always on" in Wifi policy? If I miss it, please let me know.
I feel very disappionted with my One X as it contains a lot of bugs.

jackie_jerk said:
I have set the Wifi policy to "Always on".
Many times (but not every time) when my One X goes into sleep mode, all data connections don't work. I notice it because I feel so strange there is no notification from Whatsapp and Line as usual. So, I press the power button and see no data connection at all. After a few second, 3G data connection appears but no wifi. Wifi then replaces 3G a few second later.
It usually happens and I feel so annoyed as I lost communication with my colleagues when One X is sleeping.
Is there somewhere in "Setting" that can override the "Always on" in Wifi policy? If I miss it, please let me know.
I feel very disappionted with my One X as it contains a lot of bugs.
Click to expand...
Click to collapse
It's happening to me too, it's very frustrating because when turned on it show as connected while it's false.. and i'm unable to browse/etc without re enabling wifi manually.

Same issue on the One S. This is most likely a driver related problem or something. I think the next firmware update should fix this, but if anyone of you can provide a hotfix or something I wouldn't be sad

Getting the exact same problem.

I have not noticed this so far.

same problem with wifi....and in the nights my Data also gets switched off after sometime of inactivity...couldnt find any setting related to that....do any of you know any hidden setting for it?

Yeah it happening to me as well. It could be kernel related.

Same Here

Mine is opposite, I want it to sleep on screen off but it keeps reverting to always on. Quite frustrating as it is the major cause of my battery loss
Sent from my HTC One X using XDA

Mine uses less battery with wifi on then normal 3g/4g

vallandil said:
Mine uses less battery with wifi on then normal 3g/4g
Click to expand...
Click to collapse
yeah same here, i've tested both over night and less battery used on wi-fi than 3g

I cant connect to my home wifi, it show connected then disconnect immediate
it no usaable now in my house

I just noticed this, too. Really annoying when you suddenly stop getting any notifications for E-Mails etc.
This is also not fixed in 1.28 :/.
I seem to only have this during the night hours, though. Like there is some sort of "Quiet Hours"-function but they forgot to put it in the settings >_<

I think this is the special Sleep Mode kicking in, and the WiFi Always-On is overridden by it.
When I turn the screen off, I can still ping my One X over the network. However, after some time (maybe 5-10 mins) it no longer responds and has dropped its WiFi connection.
The Always-On WiFi option has only ever applied to when the screen is off. The sleep mode thing is new and not related to android itself - an HTC hardware thing by the look of it.
Maybe it's fixable in the driver software, but I believe the "WiFi always on" function is behaving correctly - it's the new sleep state that is breaking it.
I could be wrong, but that's what it looks like.
If someone has the time, try setting up a PC to continuously ping the One X and see if it keeps it from going in to sleep mode.

Dave Trouser said:
I think this is the special Sleep Mode kicking in, and the WiFi Always-On is overridden by it.
When I turn the screen off, I can still ping my One X over the network. However, after some time (maybe 5-10 mins) it no longer responds and has dropped its WiFi connection.
The Always-On WiFi option has only ever applied to when the screen is off. The sleep mode thing is new and not related to android itself - an HTC hardware thing by the look of it.
Maybe it's fixable in the driver software, but I believe the "WiFi always on" function is behaving correctly - it's the new sleep state that is breaking it.
I could be wrong, but that's what it looks like.
If someone has the time, try setting up a PC to continuously ping the One X and see if it keeps it from going in to sleep mode.
Click to expand...
Click to collapse
Hello Dave,
Your analysis is quite impressive,
I also started dealing with this from "Special Sleep Mode" perspective.
I have got the FOTA, find data in my signature, and still suffering from the same issue.
To summarize my findings let me brief it:
When I first got the update, the problem seemed to be solved
I kept connected to my home WiFi router for several hours and got notifications from Whatsapp and Twitter
I thought the problem was solved and the bug was fixed, as I kept seeing my OneX on the WiFi Client on my router's managing interface on my PC
I shut down my phone, WiFi was on, and turn it back on
WiFi kicked in and connected with no problems,
An hour after, I sensed something wasn't good, notifications were silenced
I unlocked my phone and checked the status bar to find there were no DATA connections at all, nothing, no WIFi no Mobile Data, the usual bug
Now I started to think,
I Have got this problem after a full shut down, and at a battery below 15%
One thing to add,
I turned my phone off with WiFi enabled and when turned it on WiFi kicked in.
Now I am monitoring on the following basis.
I clicked all WiFi hot spots previously saved on my OneX and chose to "FORGET"
Connected to my preferred hotspot
Monitoring the WIFI, with battery over 15%, seems to be very healthy, more than an hour on sleep mode, and WiFi is on, uninterrupted and VERY CONNECTED
I will keep monitoring the behaviour till battery fall under 15% and will report back
I'll make sure to turn off WiFi before shutting down my phone if I have to, this is to eleminate the other variable and keep concentarting on one variable "Battery percentage"
A point to add:
On my previous Gingerbread SensationXE, there was an option on Settings> Battery to control phone's behavior and stop background sync and other activities when battery fall below a pre-defined percentage.
Default was 15%
I can't find this option on my One X, IceCream Sandwich
That's why I started to analyse the problem from the perspective of "Special Sleep Mode - Below 15%" bahaviour.
I will report back as soon as I have results.
Thank you
Update:
Started to experience same issue when battery falls below 50%.
All DATA gone down, no WiFI and no Mobile Data.
Charged my phone to 73%, "Forget" all WiFi network.
WiFi off
Monitoring Mobile Data only.
Mobile data gone down after 30 minutes sleep mode, 73% battery
Connecting to WiFi, and started monitoring WiFi
WiFi + Mobile Data gone down after 30 minutes.
Power down phone, and then on, 73% Battery, WiFi off
Monitoring Mobile Data only.
Failed, and disconnected
Failure
I've done a Factory Reset !!!
Update:
No problems on WiFi, nor Mobile data whatsoever for the whole day until battery falls below 10% !!!
WiFi disconnected after exactly 15 minutes, Mobile data kicks in, then disconnected as well !!!
I turn on the screen after 20 minutes to find NO DATA CONNECTION of any kind.
Mobile data kicks in, WiFi replaces mobile data, and start receiving all data dependent notifications!!!

I have the same problem, wifi is turned off sometimes when screen is locked.

Pabson said:
I have the same problem, wifi is turned off sometimes when screen is locked.
Click to expand...
Click to collapse
Hello Pabson,
Thanks for sharing.
Would you provide more information about your phone's software number, your location (Region, not specific).
Thanks again.

Same here, tried several roms and the same happens with every ROM out there. What is more, I cannot connect to WIFI at work (WPA PSK) but I can connect perfectly to my home WIFI network.
Hopefully this is not a hardware fault and will be fixed.

Monrad said:
Same here, tried several roms and the same happens with every ROM out there. What is more, I cannot connect to WIFI at work (WPA PSK) but I can connect perfectly to my home WIFI network.
Hopefully this is not a hardware fault and will be fixed.
Click to expand...
Click to collapse
If it happens on every single rom you you installed, then apparently this is a hardware fault.
What "Base" do the Roms, you installed, created on?!
I mean based on what version of RUU?

same problem here.
I mis the "power saving mode" options like in android 2.3
It might idd have something to do with power savings mode kicking in.

Wi-Fi turns off when phone in deep sleep

Hi, I saw many posts related to this topic Wi-Fi turns off when phone in deep sleep but not able to find a single working solution.
My phone runs on 4.2.1 with wi-fi sleep policy set to NEVER ( that means always on ideally ) , and tried turning on / off wifi optimization, avoid poor connections is not ticked.
Even after doing everything the wifi is turned off after sometime and when i turn on Screen it turns it back! How to do I solve this?? I am using STOCK rom, with just root.. No other battery saver etc. app installed.

emptyragnarok said:
Hi, I saw many posts related to this topic Wi-Fi turns off when phone in deep sleep but not able to find a single working solution.
My phone runs on 4.2.1 with wi-fi sleep policy set to NEVER ( that means always on ideally ) , and tried turning on / off wifi optimization, avoid poor connections is not ticked.
Even after doing everything the wifi is turned off after sometime and when i turn on Screen it turns it back! How to do I solve this?? I am using STOCK rom, with just root.. No other battery saver etc. app installed.
Click to expand...
Click to collapse
Set it to Never instead of Always. Its ass backwards.

scottx . said:
Set it to Never instead of Always. Its ass backwards.
Click to expand...
Click to collapse
OP stated its already set to never
Sent from my Vivid 4G using Tapatalk 2

well i have this problem too on every jelly bean rom. the only rom without this problem in cm10 stable. now i'm with cm10.1 hoping they'll fix it like in cm10.
when that problem comes out just toggle on and off airplane mode and it should disappear until next wifi toggle off and on.
I hope google will solve it in key lime pie

CM 10.1 has only just started doing this in the last week or so, it was fine before. Was wondering if it was just me with this issue or not...

emptyragnarok said:
Hi, I saw many posts related to this topic Wi-Fi turns off when phone in deep sleep but not able to find a single working solution.
My phone runs on 4.2.1 with wi-fi sleep policy set to NEVER ( that means always on ideally ) , and tried turning on / off wifi optimization, avoid poor connections is not ticked.
Even after doing everything the wifi is turned off after sometime and when i turn on Screen it turns it back! How to do I solve this?? I am using STOCK rom, with just root.. No other battery saver etc. app installed.
Click to expand...
Click to collapse
Am i correct in understanding that you don't want it to disconnect? The option in the settings is "Keep wifi on during sleep". If you have it at Never, then it will disconnect when the phone goes into sleep. It should be placed on Always because you want it to be on even during sleep
Flowed and Tapped from my Nexus

fixed the wifi problem
Heya! My first post!!!
So, i had the same problem on my Allview P5 Quad.
The guys from Allview released an update for my phone based on 4.2.1 and i thought the problem was from them. I had WiFi turned on and after a few minutes from entering sleep mode, the WiFi got disconnected, both WiFi and data. I have installed the last update again and again, rooted, unrooted, tried every option from WiFi and i still had the same problem.
So i timed the time when the WiFi disconnects and it was exactly 6 minutes. So i thought that it must be an option that does this. So i unchecked the Quick Power Saving icon from Switches and ... SURPRISE! My WiFi stays on continuously. So, the problem is from the system power saving settings. I hope this helps all of you.
P.S. Love this forum! Thanks for all your help!

I believe I found the problem, some how it is not the phone but my wifi router (and all routers) is the problem. Go into your router settings and look for the "Beacon Interval" and set that number to 50. I'm not going to explain what the beacon interval is, go google it and you will see. I switched mine and now the wifi on my phone does not switch off when in deep sleep.

Wifi stops working after phone is idle for some time

Whenever my phone is idle for a certain amount of time, I don't get any notifications. So I turn my phone on, turn my wifi off then on again and everything returns to normal. Any idea what could be causing this?
Some things that might help:
Latest PureNexus
Latest EX kernel
I have amplify and greenify installed, and I followed limitations by this guide.

It is caused by Android bug where WiFi that goes into deep sleep doesn't enable again when you turn your screen on.
To workaround, you can leave wifi on during sleep or install app to control wifi on/off.

sfhub said:
It is caused by Android bug where WiFi that goes into deep sleep doesn't enable again when you turn your screen on.
To workaround, you can leave wifi on during sleep or install app to control wifi on/off.
Click to expand...
Click to collapse
What...? The workaround is to leave it on? IT IS already on...

Bei60 said:
What...? The workaround is to leave it on? IT IS already on...
Click to expand...
Click to collapse
You have
Settings->Wi-Fi->...->Advanced
Keep Wi-Fi on during sleep
set to "Always"?
The bug is even if you keep your WiFi on all the time, if you allow it to go into "deep sleep", when you turn on the device in the morning (or whenever) then even though WiFi will say it is on, it won't work.
It didn't do that on the original MDA89E release but it does on the latest. I don't know when the change happened. On MDA89E, it had a different bug, even if you set Keep Wi-Fi on during sleep to "Never" it still wouldn't go to deep sleep. This probably masked the problem of resuming from deep sleep that started showing up in the latest releases, when they actually started honoring the "Never" option.
The other problem you could be having if WiFi is working and it is just notifications not showing up, Google Play services keeps a connection open to the mothership for notifications. There is a heartbeat it uses to keep the connection alive. If you router is killing the TCP connection before the heartbeat can send packets, then that connection might be broken and the quickest way to get notification is to toggle the interface. For cell data, they don't usually terminate the long connections that quickly so the heartbeat usually works fine. Alternatively if you determine this is the problem, you can usually adjust how often your router allows TCP connections with no activity to live.
I thought Google had "fixed" this problem though because they were supposed to dynamically adjust the heartbeat timer based on your connection specifics. I think default is 15 minute heartbeat on WiFi and 28 minute on Cell.