5GHz interface drops to channel 36 -- DFS?
Username: Juliusz Chroboczek
Origin: https://bugs.openwrt.org/index.php?do=details&task_id=558
I’m running 17.01 on a WNDR3700v2. The 5Ghz interface is set up to use a 40MHz channel width on channel 60 (5300MHz). This channel requires DFS in my locale.
Once in a while, the router drops to channel 36; I attribute this to a DFS false positive. What is more, the router never recovers — it stays on channel 60 until I manually restart the WiFi interface.
I’m fine with the router switching to channel 36 on a DFS false positive — but shouldn’t it recover at some point and switch back to channel 60? I could of course set up a cron job that restarts the WiFi at 4am every night, but that seems like a rather inelegant workaround.