Just wondering if anyone else has seen anything like this before.
This is what the 2.4GHz band looks like :
My SSID is Smokey2 - there is another device sitting on the same band : Direct-23Media:
So I manually move Smokey2 :
And within a minute the Direct-23Media SSID moves to the same band.
If I turn Smokey2 off then Direct-23Media stops moving.
If I change the name of Smokey2 to something else then Direct-23Media stops following
if I change the name back then within a couple of minutes Direct-23Media jumps onto the same channel again
Fixed! Go to the fix.
Have you got any connected devices that also have their own web server? For example I have a Solar Inverter that is normally connected to my router as a client. However it also has its own web server that transmits its own SSID. This allows a service ungineer to access the Inverter independantly should the need arise.
The Solar Inverter always transmits its own SSID on the same channel as my router SSID, just like this. Try switching off all your connected devices and see if Direct-23 Media disapears.