Sunday, May 8, 2016

Extremely frustrating WiFi issues

So, I have been having some extremely frustrating issues with the WiFi on my 6P. I got my phone in January and I have been super happy with it except for this one issue. Since I got it, I was using the stock OS up until the April security patches came out. Before the patches, I had some issues, but the phone was still mostly usable. Especially after that update, however, I have been faced with two very irritating WiFi issues.
  1. When my phone goes to sleep, the WiFi connection inevitably drops out. Sometimes, the WiFi will still be active but not associated, but it will frequently have also switched itself off completely.
  2. I can only stay connected to a network for about 30 seconds tops. The connection will just stall out and then reconnect after several seconds.

In an effort to get better performance, I decided to switch from the stock OS to PureNexus (which I used and loved on my old Nexus 5) and I also flashed the ElementalX kernel. For the first few days, the WiFi performance was rock solid, but slowly it got worse than it was on stock to the point of being unusable now. Now, here's what I have already tried/checked:
  • The "Keep WiFi awake during sleep" option in the Settings app is DEFINITELY set to Always.
  • This issue is not specific to any one network. It had occurred on every network that I've used and on 2.4G and 5G networks (although it seems to be worse on 5Ghz)
  • I tried turning the band selection off Automatic and choosing both 2.4 and 5 only options, both just seemed to make it worse.
  • I've removed all apps that I installed and checked logcat for any app info that might be related to the issue. All I see is just normal stuff and then BAM! The wifi driver states that it disassociated from the AP.
  • I tried installing WakeLock to hold WIFI_MODE_FULL at all times. This hasn't made much of a difference with it disassociating while the screen is off.

Has anyone else experienced issues like this? I am to the point now where I might have to send in my phone under the warranty because I don't know if it's just detective hardware or what at this point. The fact that it worked well after a clean install would seem to suggest that it isn't, but the fact that it persisted across two different ROMs suggests that maybe it is.

Either way, I am at a loss and I've exhausted all the diagnostic skill that I have trying to fix this because it's so damn frustrating when you're in the middle of doing something and you can't stay connected for 30 seconds. Any help or ideas would be appreciated immensely!


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