Changing Modem for DUN Connectoid Restores Default Settings

When you change the modem that a Dial-Up Networking connectoid is configured to use, the settings for that connectoid return to their default values. These settings include modem-specific settings such as speaker volume and maximum speed, and also include settings such as the type of Dial-Up server you are connecting to and the TCP/IP settings to use (if you use TCP/IP). If you change back to the modem the connectoid was originally configured to use, the settings are not restored.

In a Dial-Up Networking connectoid, all settings except the phone number are associated with a specific modem. If you change the modem a connectoid is configured to use, the settings are returned to their default values.

To resolve this issue, use either of the following methods:

• If you need to use two different modems with a Dial-Up Networking connectoid, create two connectoids, each of which is configured to use one of the modems.
• Install the Dial-Up Networking 1.3 Upgrade. For information about the Dial-Up Networking 1.3 Upgrade, please see the following article in the Microsoft Knowledge Base:
  191494  (http://support.microsoft.com/kb/191494/EN-US/ ) Dial-Up Networking 1.3 Upgrade Available