I'm trying to install my Practical Peripherals 56k HC x2 modem under NT 4. This modem works just perfectly under Win95 and Win98 but it won't under NT 4. When I run the PNPISA driver NT detects a Practical Windows Modem upon bootup and I tell it where the driver is located. It seems to install OK but when I try to connect with the modem I get the message:
Error 692: Hardware failure in port or attached device.
and I don't hear a dial tone even though the volume is turned up all the way. I tried sending an "AT" command directly to the port through HyperTerminal but I didn't get a response so I think the problem is that the port is not working correctly. NT doesn't show any port conflicts. In the Event Log I get the error message:
While validating that COM3 (the port the modem's installed on) was really a serial port, the contents of the divisor latch register was identical to the interrupt enable and receive registers. This port will be deleted.
or something similar to that. It sounds like this is a problem with the port but the modem works fine under Win98 under the same port so I'm not sure what's going on. Does anyone know how to get the modem to work? Thanks.