NT_STATUS_BAD_NETWORK_NAME error in BackupPC via samba

Error :
NT_STATUS_BAD_NETWORK_NAME error will generate when you try to backup Windows 8 client to BackupPC server via the SMB protocol.

Root cause :
If you browse the Windows 8 shared folder through another machine with in the network you will not see the  Shared folder that you have configured in the BackupPC under the “SmbShareName”. This is the root cause for the above error.

Solution :
http://www.addictivetips.com/windows-tips/windows-8-file-sharing-share-users-system-folders-on-network/

Use above link to share the folder correctly.