Quatech SPP-100, User Manual

Page: 41 / 59

5.3 Common Problems
Windows 2000/XP does not assign a LPT number to SPP-100:
Windows 2000/XP handles enumerating PCMCIA COM ports (i.e.
PCMCIA modems) much better than the case of parallel ports. After
initial installation or any configuration changes of the SPP-100, Windows
2000/XP may fail to assign a logical LPT number to the parallel port. The
solution to this problem is to shut down and restart Windows 2000/XP
with the SPP-100 installed.
How do I change the LPT port number assigned to the SPP-100?
Windows 2000/XP enumerates the SPP-100 to the first available LPT port
number available at the time of initial installation. Changing the I/O
address or IRQ settings of the SPP-100 does not affect the LPT port
number. Also, changes in the configuration of other LPT ports on the
computer does not effect the LPT port number assigned to the SPP-100 by
Windows 2000/XP. The solution to this problem is to use Windows
2000/XP Device Manager and "Remove" the SPP-100 adapter from the
system. This action clears the registry of all entries and configurations for
the SPP-100. When the SPP-100 is installed again, the first available LPT
port number will be assigned.
Quatech Inc. 5-9