VMware backup job fails with "Exception of type 'Veeam.Backup.AgentProvider.AgentClosedException' was thrown"

KB ID:
2903
Product:
Veeam Backup & Replication
Version:
9.5 Update 4
Published:
Last Modified:
2019-02-28

Challenge

After upgrade to Veeam 9.5 Update 4, VMware backup jobs might fail with the error "Exception of type 'Veeam.Backup.AgentProvider.AgentClosedException' was thrown" while backing up virtual machines from vSphere 6.0 if a backup proxy has IPv6 enabled on one or more network interfaces.

Cause

It is a known issue affecting VMware Virtual Disk Development Kit (VDDK) 6.0.
 

Solution

Disable IPv6 on the network interfaces of the backup proxy.

More Information

Please be aware that we’re making changes which will restrict access to product updates for users without an active contract.

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