Hi there,
I’m seeing a new issue with 6.41rc52 where the router reports “No supported channels” on wifi. This may be related to some of the channel changes that I’ve seen in the changelog “wireless - updated “united kingdom” regulatory domain information;”
This gateway was part of a mesh and was fully functional. I then shutdown the other members of the mesh leaving just this gateway online when it started showing the message. It does not appear to recover.
I use a custom scan list and the united kingdom region. The scan list contains 4 channels at 20MHz width each. 5180, 5200, 5220 and 5240.
It doesn’t look like anybody has posted about this issue before.
[admin@NG200B021700119] /interface wireless> print
Flags: X - disabled, R - running
0 ;;; no supported channels
name=“wlan1” mtu=1500 l2mtu=1600 mac-address=64:D1:54:xx:yy:zz
arp=enabled interface-type=Atheros AR9888 mode=ap-bridge
ssid=“my ssid” frequency=auto band=5ghz-a/n/ac channel-width=20mhz
secondary-channel=“” scan-list=20Europe wireless-protocol=802.11
vlan-mode=no-tag vlan-id=1 wds-mode=dynamic-mesh
wds-default-bridge=MyMesh wds-ignore-ssid=no bridge-mode=enabled
default-authentication=yes default-forwarding=yes default-ap-tx-limit=0
default-client-tx-limit=0 hide-ssid=no security-profile=MySecurity
compression=yes
Disabling and re-enabling the interface does not fix the problem.
The strange thing is that if I run a background scan that it “finds” a channel and allows the clients to connect while I run the background scan. It keeps working for as long as the background scan is running.
If I stop the background scan it goes back into the “no supported channels” error condition.
I don’t know how to detect the failure condition with a script and correct for it.
If I change the scanlist away from my 4 channel scanlist to default, it finds a channel and works again.
Edit: If I replace my 20Europe scanlist with the four discrete channels that my scanlist anyway contains it also works.Under interface scanlist I have 5180, 5200, 5220 and 5240 instead of 20Europe which is listed under Wireless channels as those same four channels.