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Troubleshooting
3-20
Failure Code -2xx
Meaning: An unexpected Windows communications error has occurred.
Things to Try: Try closing all applications except Connect and Program
Manager, and then repeat the Link test procedure.
Problem 3: Connect will not work on COM ports other than COM1 and
COM2.
By default, many PCs are not configured to permit the simultaneous use of
three or more COM ports. Specifically, most PCs are configured such that
COM ports are grouped into pairs: COM1 is paired with COM3, and COM2 is
paired with COM4. By default, such PCs permit only one COM port from each
pair to be operating at the same time (for example, COM1 with COM2). COM
ports within the same pair will usually conflict with one another and are not
supported (that is, COM1 with COM3, or COM2 with COM4).
If you cannot get Connect to work properly on COM3, check if another device
is using COM1 at the same time. Similarly, if you cannot get Connect to work
on COM4, determine if another device is using COM2 at the same time. If so,
you may need to make some changes to your PC configuration to support
using the PassageWay Service Provider on COM3 or COM4. Refer to
Appendix A for more information. If you need additional assistance in setting
up devices on COM ports other than COM1 and COM2, consult your PC
hardware vendor.