Registration to automatic updates not working when there is a second checkmk setup

Maybe I found what the reason could be… I will check on Monday if the Ansible rolle installed the Agent of the new host and thats why it’s maybe not working.
But anyway I don’t understand why this is the case. Because the agent of the new server got the config that it should connect to the old one…

@Anders what you mean by “host registration process” ? And yeah I am at the moment got 2 servers which will be migrated (via backup and restore) to the new server later. But I test both in parallel.
The agent is registered fine… Recent and new server can collect data from the agent. The problem is the “agent updater” which cannot register anymore correctly.