Ref: 11030005
Title: com error 2000
Date:  07/22/88

Copyright 3Com Corporation, 1991.  All rights reserved.

Com Error 2000 with 3+ 1.0, in connection with the com ports.
The error occured when the port was being used by the wrong
device.  Example, configured the port for a modem, and put a
printer on.

I've also seen it with 3+ 1.2, printer configured without having
printer attached, and configuration says "y" for network printer
question.

Also, if you have a port expansion board (PEB) connected,
configure ports on the PEB, and then remove the PEB, you'll get
the error when rebooting.  01/18/88
