hnyman
March 12, 2023, 5:17am
6
If it is about radar detection, you might have DFS-RADAR-DETECTED log items about that in the system log. (But that may depend on your WiFi logging level settings)
See example in my log extract in
The fallback channel list should work also without that "auto".
As VHT160 and DFS channel usage gets wider, I guess that more people will run into this kind of issue, so I re-opened this old thread to document the current status...
I ran into this today, 5GHz wifi (at channel 100) in one of my routers dying during the night, and it took a while to notice in morning
Sat Mar 5 02:00:05 2022 daemon.notice hostapd: wlan0: DFS-RADAR-DETECTED freq=5500 ht_enabled=0 chan_offset=0 chan_width=5 cf1=5570 cf2=0
Sat Mar 5 02:00:05 2022 daemon.notice hostapd: dfs_downgrade_bandwidth: no DFS channels left, waiting for NOP to finish
Sat Mar 5 02:00:05 2022 daemon.notice hostapd: wlan0: AP-DISABLED
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