Modem for Dial-Up Networking

Selecting the Modem for a DUNS Connection

In Windows, installed modem(s) are given a name that is obtained from the .inf file used when the modem is installed. If you re-install the modem, or upgrade the firmware/driver, and the .inf file gives the modem a different name, you will need to update your Dial-Up Networking connection(s) to specify the correct modem name. The Lucent LT Win Modem is given a different name when upgrading from early 4.x or 5.x versions.

Open the Dial-up Networking folder by double-clicking My Computer, then double-clicking Dial-up Networking. Right-click the dial-up connection that you wish to correct, and the left-click Properties.
If the connection was set-up with a modem name that is no longer on your system, you will get this warning box. Just click OK.
You then get the Properties box for the dial-up connection. Click on the Connect using selection box, and chose the correct modem. Note - if you have only 1 modem installed on your system, you normally will have only one entry in the list (unlike the screen shot which shows 4 installed modems).