Veeam - An existing connection was forcibly closed by the remote host Failed to upload disk. Agent failed to process method {DataTransfer.SyncDisk}.
Challange
Backup fails with the following error:
Error: write: An existing connection was forcibly closed by the remote host Failed to upload disk. Agent failed to process method {DataTransfer.SyncDisk}.
What This Means
The last backup job was unsuccessful because the remote host (machine backing up) closed the connection to Safe Data Storage while the backup was running.
Possible Causes
The machine was powered down during the backup. Upon shutdown, the active snapshot taken at the start of the backup is lost.
Troubleshooting Steps
No user intervention is typically required. When the computer is powered back on, a new snapshot will betaken at the next scheduled backup time, and a new backup job will begin. (Note: If the machine is put to Sleep or Standby during a backup, it should resume when it wakes up. It is only when the machine is completely powered down that this error happens).
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