Raspberry Pi 3 with OSMC unable to use wifi channels 11,12,13 in UK

Help and Support Raspberry Pi
22

I also got stuck with wifi channels…

My router has two wifi SSIDs, one for 2,4GHz and one for 5GHz.

I configured my Raspi one year ago to connect only to 5GHz (simply saved only the 5GHz network) as it was more reliable. The channel was set to 48 on the router.
I used crda to set the reg domain to “DE”, and then everything worked.

Since new year, the wifi had some drop outs and I saw a neighbour network at channel 46 or so. So I changed the channel in the router to “Auto” and it was set to 52. But the Raspi didn’t recognized the 5GHz network anymore. After changeing the channel back to 48, I still can’t find the 5GHz network in MyOSMC anymore. (Also tried channel 36, didn’t work.)

Any suggestions I can try to get it working again?

Here is the iw reg get output:
osmc@osmc:~$ iw reg get
global
country DE: DFS-ETSI
(2400 - 2483 @ 40), (N/A, 20), (N/A)
(5150 - 5250 @ 80), (N/A, 20), (N/A), NO-OUTDOOR, AUTO-BW
(5250 - 5350 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS, AUTO-BW
(5470 - 5725 @ 160), (N/A, 26), (0 ms), DFS
(5725 - 5875 @ 80), (N/A, 13), (N/A)
(57000 - 66000 @ 2160), (N/A, 40), (N/A)

And here the rest of the logs: https://paste.osmc.tv/ipedagoqez

23

Ok, so an update on this: It seems that I was on channel 44 for the last year… After switching back to that channel in the router, OSMC found the 5GHz network again and connected.
Also the networks from the neighbours were listed again, as I recognize now, no 5GHz network was displayed before.

I searched a bit around and found that the channel is saved in the “known-wifi-networks” /var/lib/connman/wifi*/settings (“Frequency=5220”)
Is this intended to be a fix value, or why doesn’t it get updated at my instance?