[FS#506] BT Home Hub 5: 5g WiFi jumps to channel 36 and stops working if stopped and restarted

[LEDE Bugs]

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

User who did this - Mauro Mozzarelli (ezplanet) 

Attached to Project - LEDE Project
Summary - BT Home Hub 5: 5g WiFi jumps to channel 36 and stops working if stopped and restarted
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Supply the following if possible:
 - Device problem occurs on BT Home Hub 5
 - Software versions of LEDE release, packages, r3425-f28eef4 and previous versions
 - Steps to reproduce

It can be after a few hours, if WiFi 5g radio0 Qualcomm Atheros QCA9880 802.11nac (radio0) is configured to a Band B channel, it jumps to Channel 36 even though there is no apparent interference. 
This appears to happen more frequently overnight during long periods of inactivity. Whilst the device is being used it does not happen.

After it does make the jump, if I stop and restart the device (using luci disable/enable) the device stops, but it fails to restart. Attempts to change the channel and re-enable the device also do not help.

It requires a reboot to restore service.
   

 

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=506