Urbackup problem after change client ip address -Linux client

After changing the client’s IP address to another network (server and client the latest version) I can not perform backups - even if he has seen the client servernely. Traffic between networks pushed. I uninstalled the client and installed it on the new, Internet mode was settings. The server can not see the client, the client can not see the server, I have not found anything in the logs?
Any ideas?

If the server and client are now on different network segments then the local broadcast messages from the server cannot reach the client. You will need to go through the Internet connection setup for both server and client so they can see each other again.

The traffic is passed, I tried even with the second interface on the server. No change