[FS#3829] No WiFi after upgrading from 19.07 to 21.02 (Attachment added)

[OpenWrt Bugs]

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

User who did this - WvdAkker (wvdakker) 

Attached to Project - OpenWrt/LEDE Project
Summary - No WiFi after upgrading from 19.07 to 21.02
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - High
Priority - Very Low
Reported Version - openwrt-21.02
Due in Version - Undecided
Due Date - Undecided
Details -   
Device : Zyxel P2812 F1
Version : 21.02 snapshot r16824-91abeebd3b

Steps:
- Router with 19.07.4
- Upgrade to 21.02 (this is a custom build version because the version on the openwrt-download does not work (bug 2226))
- after reboot the WiFi device is not available
- run WiFi up resuls in message in logread:

Wed May 26 22:30:03 2021 daemon.notice netifd: radio0 (2491): Could not find PHY for device 'radio0'
Wed May 26 22:30:03 2021 daemon.notice netifd: radio0 (2499): WARNING: Variable 'data' does not exist or is not an array/object

 
Attached is dmesg-log and config

 

One or more files have been attached.

More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3829

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