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.