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Unable to select control channel for 160mhz 5GHZ - AX86u

josh3003

Regular Contributor
Not sure if this has already been discussed. I have an AX86u with 2x XD4S setup as AIMesh Nodes.

Every so often I note the connection drops to 80mhz and sticks to that. I've set 160mhz as the Channel Bandwidth but cannot manually configure a control channel? Wondering if this would change things. How can I monitor to see if it is being impacted by radar signal? I am quite remote so I do not think there should be any interference.
1737433796028.png


Is this by design? other screenshots I can see looks like it can be manually set.
1737433851790.png
 
Its that way for me...
1737434241568.png


But check Site Survey, under Network tools and check someting isn't on the same channel before settling on one. I just did, and now I got to go hunt for an empty channel
1737434511945.png


Found one...
1737434805573.png


I also run a script that kicks off every 30 minutes and if the channel changes if it drops to 80Mhz, rare but it happens particularly on PD helicopter fly bys

Run this script on the router every 30 minutes (cron 30 * * * *), if it restarts WiFi, the nodes get reset as well. Another Addon to look at is ChannelHog much fancier. I pulled this from another post somewhere and I can't find where/who to credit the person. Simplified but it works for me...

#!/bin/sh

logger -t "channel_check" "Checking..."

ifname="$(nvram get wl1_ifname)"
targchanspec="$(nvram get wl1_chanspec)"
targchan=${targchanspec%/*}
currchanspec="$(wl -i $ifname chanspec | awk '{print $1}')"
currchan=${currchanspec%/*}

if [ "$targchan" != "0" ] && [ "$currchan" != "$targchan" ]; then
logger -t "channel_check" "Channel has changed from ${targchan} to ${currchan}. Restarting WiFi."
service restart_wireless
fi

logger -t "channel_check" "Done."
 
Does channel 124 @ 16MHz work? It's weather radar and it's common not to be affected by that. Worth a try.
 

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