I am working on a friends cpu and I installed a brand new modem. It installed properly and is recognized in device manager but it won't dial at all. it gets a 630 error. I have tried to troubleshoot everything and it leads me to believe it is on the wrong com port or something. It is currently on com 3. How do you change this in ME. or if there is any other suggestions please let me know. remember it is new and definately installed properly. have reinstalled it too. I am a tech so I know how to install a modem but i don't know how to resolve or change com ports in ME. please help!!!

The COM3 should not be a problem, that is where mine installs.

I assume you are talking about an internal WinModem. The setup configuration files for the modem define which ports the adapter can work on, and the Plug and Play logic picks one. Most likely there are two serial ports on the system board taking the first two COM ports, so COM3 is the next in sequence. Some WinModems will only work on COM5 and their configuration files will not allow them to be placed on COM3. So there is the very small remote possibility you have the wrong drivers for the modem.

But otherwise, the drivers and Windows don't really care which COM# a modem is assigned. It should work OK, as long as there are no conflicts showing for the device in Device Manager.

More likely it could be something as simple as the phone line being plugged into the wrong hole. Most modem cards it does not make a difference, but on some it does. Normally you would plug the phone line into the bottom plug. But the one I have is different in that it requires the phone line to be plugged into the top plug. (Took me a day to figure that one out.)

Start by going to Control Panel, Modem tab. Then in Modems Properties click on Diagnostics tab. Then select the COM3 by clicking on it. It should show the modem name beside COM3. With COM3 selected, click on the More Infor.. button. This should show you the response of AT commands to the modem. If this works OK then the modem is OK and the drivers are correctly installed.

An error message here, indicates there may be a problem with the modem or the wrong drivers are installed.

An added thought. Are you using the phone line wire that came with the modem? Some cards only work correctly with a two wire line. If the wire you are using has four wires it can cause dialing and connection problems. Try the wire that actually came with the modem.

This is another interesting possibility.

MS 227995

I assume also that you have checked the Start - Settings - Dial-Up Networking properties for the default connection and made sure it is not still pointing to a different modem or the old one with the same name, in the Properties - General tab. If there is more than one connectoid, make sure all are changed, including the one that indicates it is the default one.

guys- i am a tech and i have tried all of the obvious, the line in the back of the modem, the drivers(it is a brand new modem with a cd with the drivers), device manager lists the modem with no conflicts, the dialer recognizes the new modem and that is the only one in there. It is on com 3 but when i do the modem diagnostics the port does not respond, it does this with the new modem and the old one. I really think it is the com port because i have tried absolutely everything else i know, so how can i select another com port, this is so frustrating