Backup of Network share fails with the below , however when you access the share from the client server we can see that it could access .
Error 2017/07/05 88 24 1 DataPlugin Client_Server_With_Network_access Failed to Connect to Network Share: '\'
Warning 2017/07/05 88 24 1 DataPlugin Client_Server_With_Network_access Failed to access file/directory
Error 2017/07/05 88 24 1 DataPlugin Client_Server_With_Network_access Failed to build valid list of incremental entries
SevereError 2017/07/05 88 24 1 DataPlugin Client_Server_With_Network_access Failed while backing up items
Error 2017/07/05 88 24 1 Jobs Netvault_backup_server Fatal error: Backup failed
Error 2017/07/05 88 24 1 Jobs Netvault_backup_server Job Status: Backup Failed
However the issue was the user account used to access the network share location did not have access to Netvault Client server .