Support Center - Unable to import from Active Directory

Support Center - Unable to import from Active Directory

Hello.
 
I am using SupportCenter Plus (version 7.5.0 build 7512) and don't seem to be able to use the Import from Active Directory option for Support Reps.  It used to work but now it doesn't.  When I choose the OU to import it just sites there forever saying 0% Completed...   Imported 0  of 0 Contacts - see attached screen shot.
 
 
Any advice or suggestions welcome.  Nothing has changed in the SCP configuration or in our AD setup.
 
Regards,
Dave

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