unable to establish trust between servers using Backup exec 2014

Hi,

I am using Backup Exec 2014 on  Windows server 2008 R2 Standard.

I am getting this error when establishing trust between servers:

Failed to log on to Microsoft Windows.

Ensure that your logon credentials are correctly entered nd that they meet the following minimum requirements to log on to a Windows computer:

- The credentials used are a member of the Backup Operators group.

- For Windows Vista/2008 and later, the credentials have the log on as a batch job privilege.

Additional privileges may be required to access resources on the Windows computer.