Windows comms program does not recognise modems on COM3

Last Updated: 11th February, 1995

Symptoms

When running communications software through a Windows com program, OS/2 would not recognize modems at COM3.

Hardware

ZOOM FaxModem 28.8

Problem

According to IBM, OS/2 reserves IRQ 5 in its system setup for LPT2:. IRQ 5 is also used by COM3.

Procedure

Change com setting on modem to COM1 (best choice).

Notes

Nowhere in the Warp manual does it mention this. I have found that many internal modems come preset for COM3 or COM4. IBM was very helpful once I arrived at the correct phone number (not the 800 number listed in the customer support section)

[ For more information about this situation including alternative solutions, type one or both of the following commands from the OS/2 command line:

   VIEW PERFBK "Understanding COM Ports"
   VIEW CMDREF "COM.SYS"

jon. ]

Sumner Jenkins (chathall@ns.gamewood.net)

The Warp Pharmacy