[FS#3661] Regression: TL-WDR4300v1 5GHz AR9580 does not come up after setting change since 19.07.7 (ath79)

[OpenWrt Bugs]

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User who did this - Bart Hartgers (bart-h) 

Attached to Project - OpenWrt/LEDE Project
Summary - Regression: TL-WDR4300v1 5GHz AR9580 does not come up after setting change since 19.07.7 (ath79)
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - openwrt-19.07
Due in Version - Undecided
Due Date - Undecided
Details - After I upgraded to 19.07.7, any setting change I make on the 5GHz AR9580 wlan of my TL-WDR4300v1 causes it to become disabled/not active. Examples are changes in channel, power or HT20HT40. 'iw wlan1 info' shows the updated settings, but wlan is not working. 

The 2.4GHz radio is working without issues.

I did not notice this behaviour before upgrading, but I might have been lucky (not changing settings) on 19.07.6. But at least on 19.07.5 I did change the wifi settings multiple times without issues.

Restarting and/or enabling/disabling the wifi networks does not bring the wlan back. 
Restarting the router does not bring the wlan back.
Power-cycling the router does bring the wifi adapter back with the changed/updated settings.


(The AR9220 radio on my WNDR3700 (also 19.07.7) is doing setting changes without issue.)




 

More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3661

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