(Re)configuring urbackup client on linux

That is exactly what I did…
As i wrote - uninstall_urbackupclient, configure on server, run preconfigured install script on client.
DNS resolves on the client correctly, they are actually on the same LAN, so no connection issues.

Why does the client log “Successfully connected” if it isn’t? Connected to what?

#urbackupclientctl status

{
"capability_bits": 65548,
"finished_processes": [],
"internet_connected": true,
"internet_status": "connected",
"last_backup_time": 0,
"running_processes": [],
"servers": [],
"time_since_last_lan_connection": 2734433283
}

# urbackupclientctl start -i
Error starting backup. No backup server found.

The server also logs successful connection for this host:
2020-06-06 02:16:52: Authed+capa for client '$$REMOVED$$' (encrypted-v2, compressed-v2, token auth) - 1 spare connections
But web gui shows NO in Online column for this client.