Problems after migrate to Hostif

We have migrated our first environment to Hostifi. We have assigned fixed IPs to the APs.

The APs gradually go offline in the portal and only come back after a restart?

When we log in, is the Inform address correct, does the DNS work?

From time to time, however, inform shows http://unifi:8080 again

Before the migration, the APs worked on a cloud key without any problems.

What can we do?