Because of ident conflict with

Hello! There is a CapsMan on Mikrotik RB3011, 6 Mikrotik Cap Lite are connected to it. Periodically, each of the points is reconnected with the error specified in the screenshot in the attached document.

I will clarify a few points:

  1. The bridge’s Mac address is static.
  2. UDP Ports 5246, 5247 are allowed.

Tell me how to be? What other information Do you need for?
Screenshot_3.png