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Reassign COM port

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8 replies

by mingteikg

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I have a PC with a old modem. Remove the modem and inserted a new modem. I forgotten to remove the driver for the old modem before removing phycical of modem.

Now, Windows automatically assign COM1 (which isn't on my Modem) to my new modem. I need to change COM1 to COM2 for this modem.

Any suggestion on how to do that?

8 replies

by kep 001

Hi,

I am going by memory so please bear with me. You can get into device manager, select the modem (and the old one if it is still listed), remove it, shut down and restart the computer. PNP should start the new hardware install routine and letyou install the correct driver and hopefully select the appropriate COM port.

It may also be worthwhile to check out the COM ports in Device Manager to verrify that the port you want has been established. If not, you will need to go into add newhardware and do an install routine for a new port.

In control panel there is a Modem folder which may allow you to change the COM port.

Sorry if this doesn't help, I have gotten spoiled with my LAN connection.

Kep

by mingteikg

Hi,

Thanks for your reply.

The old modem isn't there (automatically disappear after I remove the old modem hardware), and now whenever I install the new modem, it will automatically assign to COM1 port, which the correct port is COM2.

On another computer, there's no COM2/COM3 port in the Port under Device Manager. But, the modem automatically detects COM2/COM3 port (the right port)

And for the modem folder, I don't see anything that allows me to change the COM port. It's fixed.

Any other idea? Thanks! :)

by dmiles

Click Start->Settings->Control Panel,double-click the System icon,Select the Device Manager tab,go down the list an dlocate the comports,if not there go back up and select Computer and then the properties button,this will show what com ports are enabled,note com ports,go back to list and down to Modems and click the (+),select modem and then click the properties button,then click the Resources tab,uncheck the automatic button and then manually set the com port to what you want,click OK

by mingteikg

Hi,

Thank you for your reply.

There's no COM2 port either in Port or Computer's properties. And, when I go into Modem's properties, the error "cannot read port name from registry" will occur. So I can't check the Modem Resource.

On another computer, there's no COM2/COM3 port in the Port under Device Manager. But, the modem automatically detects COM2/COM3 port (the right port)

Any other ideas? Thanks! :)

by mingteikg

One more thing. For the 2nd user who answered by question, how do I change the COM port for Modem? When I click on Change Setting, it gives me "This resource setting cannot be modified".

Can you lead me further?

by mwryder

Another thing to try is to make sure that COM1 is configured and active before adding the modem. Usually you have to do this in the Bios setup. If COM1 is disabled enabling it and then adding the modem should force it to select the next Com Port (COM2) which is what you want.

Michael W. Ryder
mwryder@earthlink.net

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