SFHUB, All you say is probably technically correct. I'm not that Techie. But in my experience (failure mostly, then ultimate success) the UNIT ADDRESS is KEY to getting your account database to ALLOW you to get the cards paired. It's an account database thing. The CCI status is immaterial to the problem being discussed. After he gets the cards running with HOST VALIDATION = VALID, then the CCI status may be a factor. I suggest focusing on the basic problems first.