yes I know everyone says just choose manually,
but why is it always so wrong? Other manufacturers are able to follow the basic rules
Unless using reselect-interval, choosing the best channel is done when starting up. The behavior you see might be caused by DFS checking (in which multiple CAPS select identical frequencies).
Can you share /interface wifi export from the CAPsMAN? There might be some optimizations to be done. Combined with RouterOS version and firmware version from CAPsMAN and CAPS.
And please explain "so wrong" and "basic rules".
basic rules = best practices for channel selection.
i.e. not selecting the same channel for almost all APs under capsman control.
I have set skip-DFS = disabled, so that they have the full selection of channels to choose from (eventually)
I can share config later.
Which are?
The same channel is not always bad.
There seems to be some preference for using 5500 MHz, for whatever reason. At least...that is my experience.
AFAIK the frequency is determined by the CAPS, during DFS scanning there is no actual radio active on the specific frequency. Hence you could have all 5 GHz radios on the same frequency, i.e. after a restart of the CAPsMAN.
The properties reselect-time and reselect-interval can be used to perform a regular (background) scan and switch to a different frequency when it is less crowded.
You can read more in the documentation:
I'm not saying it will solve your problem, but it will give different results.
Btw, you might want to change to 40MHz bandwidth on the 5GHz, depending on the number of wifi networks around.
Appreciated (and necessary).