If you recently changed your vCenter name (FQDN or IP) and use Veeam for backup, you need to tell Veeam about it, otherwise your backups will fail after this change.
Fortunately, a built-in Veeam PowerShell command is available to do so.
(The example below assume you’d like to change your vCenter name from 192.168.10.200 to vcsa.itechlounge.net.)
1. Open PowerShell with elevated privileges on your Veeam Backup & Recovery server ;
2. Use the following command to change the vCenter name :
(Get-VBRServer -name "192.168.10.200").setname("vcsa.itechlounge.net")
3. Open the Veeam Backup & Replication console, go to Backup Inventory and rescan your vCenter.
The change should be immediate and VBR ready for backup.