Problem opening Access Point after updating c5c

There is a problem opening Access Point after updating C5C mimosa to the latest version 2.8.0.4
What is the solution, knowing that I can open it after switching off the electricity and restarting it

2.8.0.4 is for PtP use. PtMP radios should run 2.5.3

Not if he is running an A5x.

I would report to Mimosa support the issue so they can work the fix into the next Beta. Though there might already be a fix, I think I remember reading it in the notes, but I don’t have the time to look them up right now.