Wifi turns off - Nexus 7 Q&A, Help & Troubleshooting

I have started having an issue where wifi turns off when Nexi has screen off. So no emails, updates, no nothing... until I turn on screen and then wifi reconnects. For example, plugged in to charge about midnight last night. At some point, it turned off wifi, missed a dozen emails.
It was not like this in the beginning. Is there some setting I accidentally changed? So app changed something?
No root, standard loader, etc. About as vanilla as it comes.
I'm stumped. Any ideas??
Thanks!

Settings -> wifi -> settings (the 3 dots on the upper right corner) -> advanced -> keep wifi on during sleep
Is the "Never" option ticked?

Yep, that did it. Don't know how it got switched off, but it did.

Related

Keeping WiFi alive doesn't work anymore!

I set up the WiFi standby rules to "never", so wifi should be always on even when my device is in standby mode.
This worked very good at the beginning, but since some days WiFi is NOT kept alive. As soon as the device is going into sleep mode i will lose WiFi connection. The WiFi standbye rule is still correctly set to "never".
Thats really lame because i use locale to update my RSS Feeds at home over WiFi on certain time slots. But i get no updates since wifi is not active when the device is sleeping.
Anybody an idea what the problem is? As i said it worked for 2 weeks and suddenly its not working anymore.
Won't that drain the battery to Kingdom Come if you do leave it on on standby? I used to do that on the Tytn II I used to have, and the battery died after 2 hours!
samo.chan said:
Won't that drain the battery to Kingdom Come if you do leave it on on standby? I used to do that on the Tytn II I used to have, and the battery died after 2 hours!
Click to expand...
Click to collapse
well i wouldn't say 2 hours, should be more than that. But i'm only activating wifi at home, and at nights my device is plugged to ac adaptor. So battery is not an issue in my case, and i want to use the better bandwidth at home. I just dont know why is suddenly stopped working...
Settings > Wireless controls > Wi-Fi Settings > Menu > Advanced > Wi-Fi sleep policy. When finished press Menu and then Save. Done.
The "Menu Button to save" Hint did it! thanks!
I always chose the option, but forgot to save via menu button and pressed the back button.
The strange thing here is: when i was coming back to this menu later it would still show the correct setting (WiFi always on), even though i hadn't saved it via menu button. But it wouldn't work, because wifi would be deactivated.
The back button will save your last selection, but won't activate the option!
This is really one of Androids problems: you just don't have one standard way of interacting with the system on many levels. Sometimes "back" button is enough (or the only way) to store your data, other times you have to press hardware buttons to save...
hmm the problem seems to be elsewhere: today in the morning the connection was lost again when i took the phone out of sleep mode. i could see the wifi icon, but the apps couldnt connect to the net (my rss feeds hadn't been updated).
Seems like each time i deactivate wifi manually (when leaving home) the wifi rules settings will be lost, and i have to change the wifi rules again and save the settings. Otherwise wifi won't be kept alive...that's really annoying.
maybe i have to download the "keep wifi alive" app after all from the market...
What make and model is your AP?
it's a netgear router, i will check the exact model today and post it here.
hmm i forgot to check the model, but i changed my router settings yesterday.
the router was set to disconnect after 60 minutes, when the connected device is not using the connection.
i changed that, so the connection is not reset at all, but still as soon as my device goes to sleep mode the wifi connection is basically dead.
After taking the phone out of sleep mode, i can see the "wifi connected" icon still there, but no app has any internet connection.

[Q] Hibernate/Standby Mode

Is it possible to have a Hibernate/Standby mode on the Transformer? Not just a screen off setting. I am used to putting my netbook into standby, hitting a key, and everything ready to use within a few seconds.
With the current screen off setting, the wireless stays on, I stay visible on gTalk and messages end up going to my Transformer instead of my phone. Also, I would think battery life would be increased.
I would check your settings as my wifi disconnects when screen off
settings located
Wireless & Networks
Wifi Settings
Wifi Disconnection policy
mines set to When screen turns off
Not sure about Hibernate state on android at all others may know
thering1975 said:
I would check your settings as my wifi disconnects when screen off
settings located
Wireless & Networks
Wifi Settings
Wifi Disconnection policy
mines set to When screen turns off
Not sure about Hibernate state on android at all others may know
Click to expand...
Click to collapse
Did not know that. I had just been turning wifi off because I noticed that even withe the screen off it was draining the battery faster with with with wifi enabled.

[Q] Bluetooth GPS Disconnecting when screens off

Running a Nook Color with CM7.1 stable. Kind of an odd issue here, I have two different Bluetooth GPS devices, and when they are paired to the Nook and I turn my screen off and then back on, it loses the connection. The only way to reconnect the devices is to restart the Nook, as it fails to connect after the screen is brought back up. I have found that if I have the Nook plugged in for power, this issue does not happen. I have tried multiple GPS apps, reflashed CM7.1 multiple times, but still have no success unless I have the Nook plugged in, or I just ensure the screen doesnt go to sleep.
I really need this to work, as I'm using this as a pilot, and I can't have the screen on the entire flight as it will drain the battery quickly. I swore it used to work before, but I know I had issues with it, and maybe now realize what was causing those issues. On a side note, my friend has also tested everything I have done, but his works consistently and reliably regardless if he leaves the screen off, or turns it on and off repetitively. Hopefully someone may have an idea!!
Thanks in advance.
So noone has any thoughts or ideas at all?
Well seeing as it doesn't happen when your plugged in that would make me think that it has something to do with the fact that WiFi turns off when the screen is turned off. The Bluetooth and WiFi are on the same module i do believe. The default setting for WiFi is to stay on all the time while plugged in and turn off when the screen is turned off while on battery.
My suggestion would be to turn the WiFi to stay on all the time and see if that changes anything. Go to WiFi settings --> menu --> advanced --> WiFi sleep policy -->never. That would be my suggestion, hope that works for ya!
jgore43 said:
Well seeing as it doesn't happen when your plugged in that would make me think that it has something to do with the fact that WiFi turns off when the screen is turned off. The Bluetooth and WiFi are on the same module i do believe. The default setting for WiFi is to stay on all the time while plugged in and turn off when the screen is turned off while on battery.
My suggestion would be to turn the WiFi to stay on all the time and see if that changes anything. Go to WiFi settings --> menu --> advanced --> WiFi sleep policy -->never. That would be my suggestion, hope that works for ya!
Click to expand...
Click to collapse
That's what I was thinking too. It seems that when NC goes into deep sleep Bluetooth will lose connection. By removing deep sleep you should be able to stay connected, although your battery will drain faster than with deep sleep on, it should have a better life with screen off than on.
Well I appreciate both of your responses. However, I should have mentioned that I do already have Wi-Fi set to always stay on/never sleep. Any other suggestions?

Wi-Fi Not Allowing Deep Sleep

So I posted this in a different thread but figured I would post it here to see if anyone could duplicate my findings. I have a Note3 from T-Mobile and for whatever reason leaving the Wi-Fi on will not allow the phone to go into deep sleep mode. I noticed when I was down to 40% battery after 10 hours with only one hour of screen on time. After running some tests I had only 2 minutes of deep sleep those entire 10 hours (tested using BetterBatteryStats) I tried setting "Keep Wi-Fi on during sleep" to Never and unchecking "Always allow scanning" under advanced network settings but neither of them fix the issue. In fact, after several tests I concluded that setting never for "Keep Wi-Fi on during sleep" wasn't even functioning as my access points still showed the client connected while the phone was asleep.
Can anyone else confirm this issue is actually a bug and not just my phone being defective?
Here's my original post on the topic regarding how I found the problem and what I have tested so far:
OK so after only 2 days of owning this phone (got it late Monday night, the T-Mobile variant) I finally figured out why I'm getting such bad battery, and I suspect the same thing may be happening for the other people in this thread. Hopefully this information helps at least one person.
My battery stats was almost identical to all the other users in this thread that had bad battery, I would get barely around 10-12 hours on the phone with less than 2 hours of screen on time. After using multiple apps to track down the issue I finally got what it was.
Wireless. Yes, wireless was my cause. But the thing is Wi-Fi didn't show up at all in any of the battery apps so I assumed it was a non issue. I've had other phones and have always kept the wireless turned on the entire time without problems. The basic problem is not that Wi-Fi is using power itself but it's that by default the phone cannot enter deep sleep while connected to Wi-Fi. This is why trying to use apps like BetterBatteryStats will lead you nowhere initially (though they were useful in finding out what was causing the issue) You can discover this by turning on Wi-Fi and connecting the phone to a charger, then disconnecting it so your BBS information will reset. Then power off the screen and power it back on after 10 minutes. You'll notice in the other section that deep sleep will have less than a minute time while awake probably has close to 9 minutes, if not more. This is with everything else turned off, almost no apps, and no special Samsung stuff enabled.
Under Apps > Settings > Wi-Fi > Menu > Advanced there are two options that should help this: "Keep Wi-Fi on during sleep" and "Always allow scanning" I set the "Keep Wi-Fi on during sleep" to Never and unchecked Always allow scanning and rebooted the phone. And low and behold...nothing. Yes, these options don't work (at least not to fix this problem) The phone still won't enter deep sleep mode while the wireless is enabled. Based on my company's wireless devices I can see that even with the screen off for well over 10 minutes it still shows connected as a client meaning the wireless is not turning off properly while it's in sleep mode. Or perhaps it can't go into sleep mode because the wireless is on which stops it from going into sleep mode and turning off the wireless. My guess is that it's a Samsung bug.
The reason why there's so many people here to get good battery usage is because they're either used to turning Wi-Fi on only when needed and keeping it off. You'll also not notice it if you have more than 6 hours of screen on time because you could easily assume that it would make sense that you phone would only last 10 hours total with that much screen on time, even though it should have technically lasted 20+ hours with only 6 hours of screen on time if the phone could have entered deep sleep.
So what's the real fix for this? Unless it's by design my belief is that it's a bug and won't be fixed until Samsung/T-mobile notices. I can't test to see if the same thing happens on other carriers so if someone feels like testing this theory out it would help.
For now, I guess we're just left to manually turning Wi-Fi on only when needed and leaving it off in all other cases. For those that have the T-mobile variant, make sure you also go into Settings > General > Backup and reset > Collect diagnostics and uncheck the "Allow Diagnostics" as that will probably be the highest offender of Partial Wakelocks (it'll show up as com.carrieriq.tmobile.wakelock or System Manager Application)
If anyone wants more information on my testing let me know!
Click to expand...
Click to collapse
That's because the 'Keep WiFi during sleep: Never" setting only disconnects, it doesn't shut down the WiFi radio.
You're going to have to use a manager (Like Deep Sleep Battery Saver).
Or just hit the toggle yourself... If you're going to keep it disconnected in sleep anyway, just swipe down the notification bar and hit the bloody toggle.
ShadowLea said:
That's because the 'Keep WiFi during sleep: Never" setting only disconnects, it doesn't shut down the WiFi radio.
You're going to have to use a manager (Like Deep Sleep Battery Saver).
Or just hit the toggle yourself... If you're going to keep it disconnected in sleep anyway, just swipe down the notification bar and hit the bloody toggle.
Click to expand...
Click to collapse
The problem is that it doesn't disconnect, the access point 100% shows it is connected and transferring data every now and then. But the real issue isn't weather it disconnects or not but it's the fact that Wi-Fi will not allow the phone to go into deep sleep mode. For now I am fine with switching Wi-Fi off and on as needed, but with no other phone have I needed to do this before and definitely seems like a bug.
But regardless, what I'm trying to figure out if this is a legit bug that I should submit to Samsung/T-mobile or if it's just my phone and I should ask for a replacement. If anyone has BetterBatteryStats and could test this with their Note3 that would help.
My stupid phone has just started this same issue!!!! Freaking annoying, after only 8 hrs from 100% charged state, the battery is at 46% with only 26 mins screen ontime, I checked out that the phone never goes into deep sleep. What is going on and what can be causing this? Did you manage to resolve your issue?
PS I checked out wakelock detector but doesn't tell me a thing, as what program is keeping the phone awake all the time. Starting to hate this phone and miss my S3
What is your GPS accuracy setting set to? GPS, Wifi or Networks? Try setting it to GPS only.
GameBoiye said:
So I posted this in a different thread but figured I would post it here to see if anyone could duplicate my findings. I have a Note3 from T-Mobile and for whatever reason leaving the Wi-Fi on will not allow the phone to go into deep sleep mode. I noticed when I was down to 40% battery after 10 hours with only one hour of screen on time. After running some tests I had only 2 minutes of deep sleep those entire 10 hours (tested using BetterBatteryStats) I tried setting "Keep Wi-Fi on during sleep" to Never and unchecking "Always allow scanning" under advanced network settings but neither of them fix the issue. In fact, after several tests I concluded that setting never for "Keep Wi-Fi on during sleep" wasn't even functioning as my access points still showed the client connected while the phone was asleep.
Can anyone else confirm this issue is actually a bug and not just my phone being defective?
Click to expand...
Click to collapse
Well, your issue looks pretty similar to mine, which I solved with this Xposed mod (you could give it a try if you're on KitKat): http://forum.xda-developers.com/xposed/modules/mod-wi-fi-deep-sleep-t2752947. I was experiencing that even when "Keep Wi-Fi on during sleep" is set to Never, Wi-Fi still was awake most of the time according to battery stats.

[Q] Features won't turn off

Was wondering if any one else has had this issue. I've been noticing that turning GPS off doesn't seem to shut it off. When I checked my battery stats yesterday, I noticed GPS was on all day. Even tho I turned it off, and even the toggle said it was off. On top of that, When I say "Hi Galaxy", S-Voice turns on, even tho I have it disabled. If I turn the phone off, it all stays off. It's kind of annoying having to turn the phone off after using one of these apps. I checked location settings and all of that, it is all disabled.
robreefer said:
Was wondering if any one else has had this issue. I've been noticing that turning GPS off doesn't seem to shut it off. When I checked my battery stats yesterday, I noticed GPS was on all day. Even tho I turned it off, and even the toggle said it was off. On top of that, When I say "Hi Galaxy", S-Voice turns on, even tho I have it disabled. If I turn the phone off, it all stays off. It's kind of annoying having to turn the phone off after using one of these apps. I checked location settings and all of that, it is all disabled.
Click to expand...
Click to collapse
Go to Settings -> WiFi -> Advanced and uncheck 'Always allow scanning' and see if that does anything.
bd177 said:
Go to Settings -> WiFi -> Advanced and uncheck 'Always allow scanning' and see if that does anything.
Click to expand...
Click to collapse
No dice, They only turn off after a reboot still. Thanks for a shot tho!

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