Wireless connection cuts with Omnitik

Hi,
In two Omnitiks I have a wireless cuts (for 2-3 seconds) every few minutes in all SXT. I tried all frequencies, I changed the Omnitik, cable, RJ45 connectors SAI, updated to 6.32.3 the Omnitik and all its clients. In fact, one of the omnitik (already replaced yesterday) worked well until last week, and now I can’t avoid those cuts

What possible reason could there be?
Is there any way to know the reason (wireless debug info of omnitik?)

Is there anything in the logs? could be interference, run a

/interface wireless spectral-history range=5ghz 0

which channel is the Omnitik using?

Have you monitored Omnitik CPU usage when this happens?

First, thank you very much for your answer.
I honestly did not know the “spectral-history tool”, so I will study it, may be that I see something. I used all the other tools, except that…

The CPU uses 40% -50%, and when there is a cut, low at 20%.
When I’ll study the “spectral history”, I’ll write a conclusion here.

Thank you.

Can reboot help at least for a while? How does look the free memory before the reboot and after the reboot?

I reboot all nights this Omnitiks, and are UPA model with 64Mb (32Mb Omnitik fail with 6.xx with several sxt clients).

I have observed, when exists a CUT in this Omnitik, another Omnitik 700 at meters (on another frequency) has no CUT, but has very low transfer rate in those same seconds.