We just changed the management Vlan, and started the problems again … the A5c did not respond anymore !!!
We try to connect via wifi (2.4) and the A5c does not deliver IP, nothing works!
Then we tried to find that ip had connecting the A5c to a Mikrotik and did not hat anything.
Then connect it to a switch poe (netonix) and in the port is seen the IP 169.254.2.1 with the MAC of Mimosa A5c.
It’s a lot … we always find problems … we do not see anything simple!