N360 backup Win7 to my Seagate network drive crashed every time I run it

After several hours my N360 backup of Dell, Win7 to Goflex Seagate network drive crashed. It appears to be the following error.

 

Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface.  hr = 0x80070005, Access is denied.

. This is often caused by incorrect security settings in either the writer or requestor process.

 

Operation:

   Gathering Writer Data

 

Context:

   Writer Class Id: {e8132975-6f93-4464-a53e-1050253ae220}

   Writer Name: System Writer

 

Additional Information

Log Name:      Application    Source:            VSS     Logged:           8/20/2014 8:19:16 A

Even ID:          8194                Task Category: NoneLevel:              Error

Keyword:        Classic                       

 

On 8/20/14 at 7:29:04am Event viewer logged.......>

The VSS service is shutting down due to idle timeout.

The backup has worked in the past.

 

The C" drive has 168gb to backup the Y: Drive has 1.20tb of free space.   Disk space and memory is not a problem.

I deleted the previous backup and tried again......Failed after several hours of running.

 

 

Any help would be appreciated.