Open the BIOS screen (on desktop PC usually press Del key as it boots -- for laptop read manual).
Disable any ports which are not in use; COM and Game/Midi are likely candidates.
Save and exit and start Windows, uninstall Printer Port, close Windows and reboot. Reinstall printer port and close Windows and reboot.
The aim is to take advantage of reassigned resources in case a clash is the cause of the problem.