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Help No WiFi when sleeping

C

Colmss

Well-Known Member
Hi,

when my phone is in sleep mode it seems to me that WiFi is periodically turned off on my Nexus 4. I have experienced the same issue on my Galaxy Nexus. There is a thread in google's bug tracker.

I just factory reseted my phone to study the issue some further:

Sent WhatsApp message from different phone on 22:16.
Sent email from my PC on 22:25.
It took until 22:34 for the phone to ring. I pushed the wake button to see if it is the email or the WhatsApp message and as soon as the screen was illuminated I saw that it was the email I sent. One blink of an eye later the WhatsApp message was there.
Regular text messages arrive instantly.

It seems to me that I don't have this issue on mobile data.

I can't believe why only so few people complain about this issue!? Could it be hardware related? I still have the possibility to return my phone but where is the sense in it if it is a software issue :-\

Does anyone have a fix for this?
 
Go into wifi settings and tap menu, select "Advanced".

Is "Wi-fi optimization" checked? If so uncheck it and do your test again.

I can't believe why only so few people complain about this issue!?
Click to expand...

I can think of several reasons, like perhaps a few minutes delay doesn't worry them or maybe they just configure their phone to match their preferences ;-)
 
I didn't say it wasn't a real effect, I simply suggested you try the setting I suggested (which works for me) before being over-critical of the device.

As for "20 minutes or more" I'm not sure where that time comes from. I used to see delays of maybe 10 minutes - just like the 9 minutes you measured in your first post - and the thread you linked mentions "up to 15 minutes". I've never seen delays longer than that.

The actual delay depends on both phone settings (that's why I suggested looking at them) and the router you use. You may see no difference at all with your particular router, or you may see a dramatic improvement as I did. It costs nothing to try.
 
Hey, sorry, I forgot to mention that my measurements already used an unchecked optimization option.

But the 20 minutes came from 22:16-22:34 which was the delay for the WhatsApp message. Yeah, it's 18 minutes but I rounded ;)

Is the option you mentioned the only one you know of with regard to this?
 
I'm not aware of anything else apart from the workaround mentioned in the thread you linked. Needs root access to edit the config file though.

Later: on re-reading your OP I see I picked up the wrong time (22:25) for receipt, which is why I thought it was 9 minutes rather than 18. My bad, although I have never had a delay anywhere near that length.

As I was typing (on my PC) an automatic email reminder I had set in Calendar popped up in my Gmail notifier - absolutely simultaneously with the alert chime from my Nexus 4 sitting idle (screen off) on the table. My intention isn't to "rub it in" but illustrate that blame for delays lies in both the router and the Nexus 4, not just in one or the other, otherwise it would always work or always not work with the same settings and any router.

It's annoying when these things don't work as smoothly as they should for all devices and users, but that's technology... :-(
 
My intention isn't to "rub it in" but illustrate that blame for delays lies in both the router and the Nexus 4, not just in one or the other, otherwise it would always work or always not work with the same settings and any router.

It's annoying when these things don't work as smoothly as they should for all devices and users, but that's technology... :-(
Click to expand...

:( I hope they'll fix it sometime soon... I found an App "WiFi Keep Alive" and just tried it twice with just ~3 minutes delay.
It's just annoying that I miss WhatsApp chats just when I have the time to respond, i.e. when I am at home....
 
Have you tried going into the advanced wifi settings and set keep wifi on during sleep to always
 
Have you tried going into the advanced wifi settings and set keep wifi on during sleep to always
Click to expand...

Yeah, I kept this setting on always.


... it seems like that even with the app the delay is kind of random.

@John Bean:
blame for delays lies in both the router and the Nexus 4
Click to expand...

Which router do you have?
 
I have a BT Homehub 2. It plays havoc with the "Wi-fi optimization" on my Nexus 7 (but not the Nexus 4) to the point I have to turn off wi-fi while sleeping to prevent it from killing the N7 battery.

But on the Nexus 4 it behaves far better and with "Wi-fi optimization" turned off it performs well, with minimal (often zero) delay and excellent battery life.
 
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