Unable to enable 5ghz band

Fri Jan 20 11:52:46 2023 daemon.notice netifd: Wireless device 'radio1' set retry=0
Fri Jan 20 11:52:46 2023 daemon.crit netifd: Wireless device 'radio1' setup failed, retry=0
Fri Jan 20 11:52:48 2023 daemon.notice netifd: radio1 (1889): WARNING: Variable 'data' does not exist or is not an array/object
Fri Jan 20 11:52:48 2023 daemon.notice netifd: radio1 (1889): Bug: PHY is undefined for device 'radio1'
Fri Jan 20 11:52:48 2023 daemon.notice netifd: Wireless device 'radio1' is now down

I have tried reconfigure, remove and configure again, restart band but 5ghz still stuck disable.

Router: Tp link archer c20 v5 US
Firmware: OpenWrt 22.03.3 r20028-43d71ad93e / LuCI openwrt-22.03 branch git-22.361.69894-438c598

How to fix it? I'm new at openwrt.

Thank you

Did you set a country?

Country list is not appearing.

I have reset router and configure again but 5ghz band not activated.

How to fix?

Why doesn't the country setting appear ?
Are the wlan cards being detected at boot ? (read log)
Why "generic" wlan and not the hardware ref (e.g. MediaTek MT7628AN) ?

1 Like

Are you sure you have flashed the correct build for your device?

1 Like

Yes flashed. 5ghz working well. 2 days ago. I don't know when 5ghz stopped working. When i noticed i login to web and check the 5ghz is disabled. I trying to enable but no luck. Then i reset the router and again setup from zero. But issue present.

Country setting appears now after resetting.

Log: https://pastecode.io/s/5gpfhdi6

I don't know why.

Did you install this ?

That is for EU version while you have US. There may be some tiny differences in hardware and wlan regulations.
The wlan 2.4 GHZ works because it is build-in the CPU. The 5GHz has separate chip, and you may not have the proper driver and/or settings.

all setting was working well. the issue started 2 days ago.

I follow it.

If all was working previously than that may be hardware related so :face_with_raised_eyebrow:

what should i do now?

5ghz working now. It's fixed itself.

This topic was automatically closed 10 days after the last reply. New replies are no longer allowed.