BE Appliances and CASO: SQL access error when making managed Server

Hi folks,

I have two 3600 R2's , have promoted one to CAS w/o problem, but trying to make the other a MBES  (steps as outlined in Admin Guide) gives an error after entering the CAS Server: the SQL instance complains about invalid credentials for the SQL DB. I made sure the service account is the same on both appliances. Any other idea?

Bert