KB1198: NFC connectivity troubleshooting steps
https://www.veeam.com/kb119826.08.2011 · Try vMotioning the VM to a different host. (Isolates issue to specific ESXi host) Try Storage vMotioning the VM to a different datastore. (Isolates possible missing permission at datastore level) Try adding the ESXi host the VM is on as a standalone host to Veeam, then create a backup job to pull the VM from the standalone host.
Cannot restore to the backup repository host when storage ...
https://www.veeam.com/kb202827.04.2015 · You can specify a different gateway server in the repository settings. Copy the backup files to this other storage, then add it to the Backup and Replication console as a repository. When you have verified that you are able to restore from the backup files in this new location, you can delete the old files and map the backup jobs to the new files: