I just replaced a Python 4 Tape Changer for my customer. I believe the unit
is good(fresh refurb from Certance), but when I try to run a backup the message
Negotiating Block Size and Media Header stays on the screen forever.....

Any ideas where I could look?

Adapter 2940/NW6/BKUPEXEC 9/PYTHON DDS3 4 TAPE CHANGER

Thoughts?