My Windows Server (2022 Standard) client yesterday made its first backup to my UrBackup server running as a Docker app (App Version 2.5.x, Version 1.1.6) on my NAS running TrueNAS 25.10.7. This morning it doesn’t see the server anymore:
“Server unreachable.”
When I try to trigger a new incremental backup from the pull-down on the Status page of the UrBackup GUI, it says, “Starting backup failed.”
What could have changed?