Used By Existing BSS

[ApexRon]

Every 15 minutes this get posted to the System Log:
“May 18 08:32:33 acsd: eth6: COEX: downgraded chanspec 0x1909 to 0x100b: channel 4 used by exiting BSSs”

Can anyone advise as to what this trying to tell me? Is “eth6” the WiFi?

RT-AX86U Pro running 3004.388.7

 

[Tech9]

Your router is set on Auto channel and with 20/40MHz bandwidth on 2.4GHz band.

Fix a working well 2.4GHz channel at 20MHz bandwidth and all ACSD messages will disappear.

 

[ColinTaylor]

It means the router cannot find a clear 40Mhz channel on the 2.4GHz band so it's downgraded to channel 11 @ 20MHz.

 

[ApexRon]

Your router is set on Auto channel and with 20/40MHz bandwidth on 2.4GHz band.

Fix a working well 2.4GHz channel at 20MHz bandwidth and all ACSD messages will disappear.

The 2.4GHz band has been set to a Control Channel of 11, not Auto. I have changed 20/40 to 20. Will monitor.

 

[ApexRon]

It means the router cannot find a clear 40Mhz channel on the 2.4GHz band so it's downgraded to channel 11 @ 20MHz.

Thank you

 

[Tech9]

Detected interference will force the radio to switch to 20MHz channel bandwidth. Fixed to 20MHz will stay there without ACSD involvement.