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[Q] Wi-Fi always consuming battery at idle

I've noticed that despite setting "Keep Wi-Fi on during sleep" to "only when plugged in" and disabling "scanning always available" Wi-Fi continues to deplete the battery at idle. According to the details in the battery stats, the Wi-Fi never turns off at idle (the Wi-Fi is shown as being on the entire time the phone is unplugged). I've found the only way to stop the Wi-Fi from depleting the battery is to disable it entirely. Has anyone else experienced this? Does this have anything to do with the kernel I'm using? Is it possibly a bug in Franco's kernel? Does this vary with the stock kernel or other custom kernels? It's not a major problem, but I'd just like to know why Wi-Fi is using up juice when it's supposedly turned off. Thanks.

BirchBarlow said:
I've noticed that despite setting "Keep Wi-Fi on during sleep" to "only when plugged in" and disabling "scanning always available" Wi-Fi continues to deplete the battery at idle. According to the details in the battery stats, the Wi-Fi never turns off at idle (the Wi-Fi is shown as being on the entire time the phone is unplugged). I've found the only way to stop the Wi-Fi from depleting the battery is to disable it entirely. Has anyone else experienced this? Does this have anything to do with the kernel I'm using? Is it possibly a bug in Franco's kernel? Does this vary with the stock kernel or other custom kernels? It's not a major problem, but I'd just like to know why Wi-Fi is using up juice when it's supposedly turned off. Thanks.
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It's a 4.4 deal. Pretty certain it's intentional on Google's part.

The setting worked for me. Whenever the screen was off it would switch to my data connection instead. This turns out to use 3x as much battery while idle then WiFi did in my case.
You could disable background data which wouldn't use WiFi or data but also leave your phone unconnected.

Wifi auto connect to AT&T public wifi - how to disable this?

I have the T-mobile LG G2 D801. Every time I am near an AT&T wifi hotspot, my phone "knows" my location and automatically turn on the wifi and connect to it, even skipping the usual web login agreement. This is the first time I have seen this feature on a none-AT&T phone. Has anyone else notice this?
Very interesting ability but how does my phone knows I am near the AT&T wifi when my wifi is already set to off?
How do I disable this feature (none-rooted phone).

I haven't noticed this on mine; I'll have to watch for it. There is a "scanning always available" setting in the Advanced Wi-Fi settings, it is enabled on my phone.

diamond12 said:
I haven't noticed this on mine; I'll have to watch for it. There is a "scanning always available" setting in the Advanced Wi-Fi settings, it is enabled on my phone.
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Yes, this feature was turned off and my phone still automatically detects I am near a Starbucks and connect to the wifi there.

Do you have snapdragon battery guru installed?

Swizzle82 said:
Do you have snapdragon battery guru installed?
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I do not

I ask because it manages your wifi and can turn it on automatically good app though. Idk what your issue might be then, I've never had an issue like that.

[Q] [Help] Wifi drains battery even though turned off (Lollipop)

Hi everyone,
I am new here, and would like some help with my Nexus 5.
It is running stock rom and everything, Android 5.0.1 LRX22C
I am still setting up, so still using my old phone while I get all the mandatory apps on before i switch my SIM over.
I realised that battery seems to be draining rather quickly even it spends most of its time on just Wifi right beside the router. Cellular connection is not on. So one day I decided to turn it to airplane mode and see what happens.
As you can see from the attachment, WiFi was on all the time even though the phone was on airplane mode. I believe this is the cause of the battery drain. I did not turn WiFi on.
"Scanning always available" was turned off, and the top battery drainer is "Android system", but at only 1%.
(The screenshot was only taken after I reconnected Wifi and downloaded GSam, that explains the notifications.)
Does anyone know the cause of this? I'd prefer if I do not need to factory reset the phone as I am pretty much done setting up everything and I don't want to have to do it all again.
Any help would be really appreciated.
Thanks!

If you go to 'Advanced' there should be an option called 'Keep WIFI on during sleep', click there and then click 'Never' or 'Only when plugged in'. Good luck.

I too had the same problem when i updated to lollipop but after some days of usage i found that in wifi under advance there was a new option scanning always available which was turn on. What this setting do is even if ur wifi is off the app can scan for wifi signals for the location. So if u want to keep ur wifi off just turn off that setting.

I already had it turned off, but the battery settings still reports WiFi as on. Weird thing is GSam says my WiFi is off, so I'm not sure what is the problem now.
It might be the Android System, reporting it uses even more battery than my screen now.
Sent from my Nexus 5 using XDA Free mobile app

[Q] WiFi turning off when device is sleeping

My WiFi is intermittently disconnecting when my device is asleep. I wake it up and the WiFi is often 'disconnected', but connects automatically once it's awake.
When I wake my phone, there's no WiFi connection and there's a little '?' next to the mobile signal icon - but when I wake it up, the WiFi connects and the '?' on the mobile signal disappeared.
'Keep WiFi on during the sleep' is toggled to 'always', so I really can't understand why it's doing this.
I've had Lollipop for about a month now, but it's only started happening today. I've 'forgot' the network, restarted the device and reconnected, but it's still dropping out when my phone's asleep.
Cheers

Have you installed any power management Apps recently?

goto to settings>WiFi click menu>advanced. check if the option keep WiFi on during sleep is set to always.

vickyjusme said:
goto to settings>WiFi click menu>advanced. check if the option keep WiFi on during sleep is set to always.
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Op said it's set to Always in his original post

StLewi said:
My WiFi is intermittently disconnecting when my device is asleep. I wake it up and the WiFi is often 'disconnected', but connects automatically once it's awake.
When I wake my phone, there's no WiFi connection and there's a little '?' next to the mobile signal icon - but when I wake it up, the WiFi connects and the '?' on the mobile signal disappeared.
'Keep WiFi on during the sleep' is toggled to 'always', so I really can't understand why it's doing this.
I've had Lollipop for about a month now, but it's only started happening today. I've 'forgot' the network, restarted the device and reconnected, but it's still dropping out when my phone's asleep.
Cheers
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I am actually having this same problem. Never happened with KitKat but lollipop I notice it. Also have WiFi set to "always" bit still doesn't work.

gauthier81 said:
I am actually having this same problem. Never happened with KitKat but lollipop I notice it. Also have WiFi set to "always" bit still doesn't work.
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Did you manage to find a solution to this?

If rooted, and using Titanium backup, avoid backing up the wifi settings. Just touching the two files with TiB, breaks wifi connectivity.
Search Google on how to actually setup TiB for this.
Sent using Tapatalk.

nflwideout86 said:
Did you manage to find a solution to this?
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No I have not. Seems to do it in various roms. Weird.

Are you on the 5.1.1 radio? Mine has been doing this ever since updating. It has done it on stock 5.1.1, CM CAF 12.1, and the M Dev Preview.

Did Anybody fund a solution to this? My Nexus 6 turns WiFi off almost every time the device sleeps. Ive checked and Keep WiFi on is set to ALWAYS

kandrews8098 said:
Did Anybody fund a solution to this? My Nexus 6 turns WiFi off almost every time the device sleeps. Ive checked and Keep WiFi on is set to ALWAYS
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I've been having this issue as well. I've contacted google and they've sent me three replacements. Same issue on all of them.
I thought it could be my router, but this isn't happening to any of my other 8 devices. I also see this problem when I'm on different Wifi in different locations. They're getting a specialist to look into my case now

Me also facing issue, I thought it was the Franco or lean droid app that I use to disable network signal when screen is off

Same issue in Marshmallow
Well ever since i updated to Marshmallow i am facing this on my N5.
First i thought its because defult battery optimization that comes with this. So i removed "Google connectivity service" from optimization but it din't help.
"Keep wifi on during sleep" flag is set to 'always' as you guys..
Can't say bug or feature but its annoying..

Anyone has solutions?

Sanshis said:
Well ever since i updated to Marshmallow i am facing this on my N5.
First i thought its because defult battery optimization that comes with this. So i removed "Google connectivity service" from optimization but it din't help.
"Keep wifi on during sleep" flag is set to 'always' as you guys..
Can't say bug or feature but its annoying..
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Same issue for me...
Inviato dal mio Nexus 7 utilizzando Tapatalk

Chroma 6.0 WIFI Drain

I installed Chroma alongside with the hellscore kernel. I have found that WIFI seems to be the biggest battery drain - it should be the screen. I turned WIFI scanning off. And changed it to 2.4Ghz. But it is still the biggest. I have read some user were able to get 5+SOT using Chroma and Hellscore, I'm only getting 2+. How can I fix this?
Thanks

dec1153 said:
I installed Chroma alongside with the hellscore kernel. I have found that WIFI seems to be the biggest battery drain - it should be the screen. I turned WIFI scanning off. And changed it to 2.4Ghz. But it is still the biggest. I have read some user were able to get 5+SOT using Chroma and Hellscore, I'm only getting 2+. How can I fix this?
Thanks
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I usually (aside from turning scanning off) go to wifi, advanced, and set "KeepWi-Fi on during sleep" to only when plugged in. It shouldn't affect anything, but ever since Lollipop, Android is full of bugs like this. Might help, might not.

ast00 said:
I usually (aside from turning scanning off) go to wifi, advanced, and set "KeepWi-Fi on during sleep" to only when plugged in. It shouldn't affect anything, but ever since Lollipop, Android is full of bugs like this. Might help, might not.
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Thanks, I've changed it. WIFI bug is driving me nuts!

Still no fix, WIFI is still at the top!