Does UrBackup client get attached to another server if previous server goes down?

Suppose i have a UrBackup client and server installed on a PC and are connected. If i stop service of a UrBackup server then do client will get connect to another UrBackup server on same network automatically or we need to restart the client service?

It will switch after 3 minutes.

Will UrBackup automatically connect to another UrServer or do user need to delete server_idents.txt file and restart client service again?

add both keys in the ident file