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Ports and modems

By gold ·
I would like to know what Windows 95 means by the error: "Unable to open port". This error occurs when I attempt to test the modem on my user's PC. I have com ports 1 thru 4 available in Device Manager. I have de-installed the modem and re-installed it, hoping Windows would assign a port not in conflict. This PC is a Compaq Armada 1700 laptop

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Ports and modems

by don_brill In reply to Ports and modems

If the modem is not external (such as PCMCIA), an easy solution is to de-install the modem and remove any com ports you're not using from Win95's device manager; reboot and disable the com ports via the BIOS setup (F10 at boot); then re-install the modemon COM1 (3F8, IRQ 4) or COM2 (2F8, IRQ 3).

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Ports and modems

by gold In reply to Ports and modems

The question was auto-closed by TechRepublic

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Ports and modems

by will-b In reply to Ports and modems

in addition :
if you have modem software (like in HST modems), you can assign a port and maybe IRQ too by that software. Try to check the manual and look for installation tips and troubleshooting.

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Ports and modems

by gold In reply to Ports and modems

The question was auto-closed by TechRepublic

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Ports and modems

by hallkr In reply to Ports and modems

Sounds like you have an internal modem so thats how I'll answer your question. If this is a Win modem (software driven) it can be tempermental. But the same procedure can be used for both hardware and software modems. First reboot your computer and enterBios setup. Disable Serial port 2 (com2). Allow to finish booting and your modem should be detected. If this doesn't happen, go to device manager delete your modem and delete com2 if displayed. Reboot modem shoul;d be detected. When Windows asksfor the drivers specify have disk and point to the drive they are located on. When the expected driver (on top display) matches your current driver (bottom display) select O.K. and your up and running.

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Ports and modems

by gold In reply to Ports and modems

The question was auto-closed by TechRepublic

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Ports and modems

by rcastellan In reply to Ports and modems

This is port conflict. The open port messege means its looking for the modem and it see more than one thing using the same com port address and gets confused and can't find the modem. If you have 4 com ports listed you have too many. Com 1 uses IRQ 4 andcom 2 uses IRQ 3, Com 3 uses IRQ 4 and com 4 uses IRQ 3 and this is why your having an IRQ conflict. Go to device manger and remove com 2, 3 & 4 and the modem. Then reboot the computer. It should put one com port back in and install the modem tothe proper port.

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Ports and modems

by gold In reply to Ports and modems

The question was auto-closed by TechRepublic

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Ports and modems

by rindi1 In reply to Ports and modems

Possibly your port is already in use by an open application, like a fax software. Try disabling all background activities then try again.
Good luck, Markus

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Ports and modems

by gold In reply to Ports and modems

The question was auto-closed by TechRepublic

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