Situation: The client has a problem to run Veeam backup with this Error: No authority could be contacted for authentication
Error: Storage ‘\10.0.0.178\qnapbackup\host02\SVR01 – Q Drive –
svr01\Agent Backup Q – SVR01D2021-07-10T230031_0020.vbk’ is closed. Failed to download disk.
Reconnectable protocol device was closed. Failed to upload disk. Agent failed to process method {DataTransfer.SyncDisk}.
Resolution 1: Make sure use the correct username to access backup storage, for example NAS\username.
Resolution 2: The client just join the NAS to their domain, they need to access the NAS using domainname\username.
Resolution 3: Force the credentials renew in Veeam DB. Please follow this post: How to force the credentials renew in Veeam DB
Resolution 4: Run rescan on Repository by going to Backup Infrastructure.
Right-click on the storage and then Rescan.