[FS#432] ath9k: Disconnections from WiFi (router as client)

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - howl (howl) 

Attached to Project - LEDE Project
Summary - ath9k: Disconnections from WiFi (router as client)
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - I think it could be related to this patchset https://git.lede-project.org/?p=source.git;a=commit;h=b94177e10fc72f9309eae7459c3570e5c080e960

In Archer C7 and a snapshot after that commit the router get's disconnected in a random time with a message like, disconnecting from ... due to excesive missing ACKs. I'm sorry because I didn't copy the log before downgrading to a snapshot before the commit.

I will wait at least one day to see if disconnections happens and it's coincidence that I did another wifi network with the router as master and that's the problem. If it doesn't happen I will reflash the affected snapshot and will paste here the log as it's shown when the disconnection happens. When the disconnection happens it doesn't connect again, at least until reboot of the router, I have to test if disabling and enabling the wifi network, etc...

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=432