Archer C7 AC1750 router v5.0 randomly overriding fixed 2.4 GHz WIFI channel selection
Hello,
WIFI channel set specifically to channel 13, occasionally resets to either channel 2 or 10.
In the UK valid 2.4 GHz channels are 1-13, whereas in the US its 1-11. A lot of ISP supplied routers only support 1-11 which means channels 12 and 13 are mostly unused. Hence I like to set my routers WIFI channel to 13 which is clear in my location. I bought this router on 25/11/2019 and initially the problem of the router staying on its set channel only happened about twice with the router switching to channel 2 on both occasions.. Recently however it is doing it more often ending up on channel 2 or 10.
Logging into the routers interface when this happens and looking at Avanced->Status shows the WIFI channel actualy being transmitted ie, 2 or 10. Whereas Advance->Wireless->Wireless Settings shows the WIFI channel still set to 13.. Clicking the "Save" button on this page doesn't set the actual channel back to 13.. Setting the channel to say 12 clicking the "Save" and then setting the requested channel back to 13 and clicking "Save" does set the actual channel in use back to 13. A reboot does set the channel back to 13.
I have changed a lot of other parameters relating to Internet, LAN, DHCP, parental controls etc and none of these get corrupted when the channel changes. The log output is absolutely useless in this case.
Do I have a faulty router or is this some quirk of the Firmware?. Does the Archer see maybe some interference either other WIFI or non WIFI on 13 AND decide to override my wishes. Seems unlikely.
Most clients will happily follow a change of WIFI channel, but I am using a TP-Link TL-WR702N Nano router in client mode which doesn't follow a WIFI channel change and just loses connection.
Would like to know if anybody else has had this problem or an explanation for this behavior.
Thanks in advance!