When netbackup jobs start it give below Err and many time backup failed for exchange server 2010 DAG , if no backup running there is no such belwo err so kindly advise how to fix below err.
Cluster network interface 'PBAMBX01 - Ashal-LAN-CARD-2' for cluster node 'PBAMBX01' on network 'Cluster Network 1' is unreachable by at least one other cluster node attached to the network. The failover cluster was not able to determine the location of the failure. Run the Validate a Configuration wizard to check your network configuration. If the condition persists, check for hardware or software errors related to the network adapter. Also check for failures in any other network components to which the node is connected such as hubs, switches, or bridges.
Thanks in Advance
Regards,