Dial-Up Networking Does Not Obtain an IP Address

If you have two or more network adapters in your computer and you are using Dial-Up Networking to connect to a network using the TCP/IP protocol, you may not be assigned an IP address and may not be able to use a static IP address. When this occurs, running Winipcfg.exe shows an IP address and subnet mask of 0.0.0.0, even though you are connected with the TCP/IP protocol.

This problem can occur when you have two or more network adapters installed with TCP/IP bound to each, and you have TCP/IP bound to the Dial-Up Networking adapter.

To work around this problem, follow these steps:

1. Click Start, point to Settings, click Control Panel, and then double- click Network.
2. Click one of the network adapters. (NOTE: Do not click the Dial-Up Networking adapter.)
3. Click Properties.
4. On the Bindings tab, click the TCP/IP check box to clear it, and then click OK.
5. If you have more than two network adapters, repeat steps 2-4 until TCP/IP is bound to only one network adapter and the Dial-Up Networking adapter.
6. Click OK until you return to Control Panel. When you are prompted to restart your computer, do so.

This problem no longer occurs in Windows 98. To resolve this problem, install the current version of Windows. For information about the current version of Windows, visit http://www.microsoft.com/windows (http://www.microsoft.com/windows) .

For additional information about issues resolved by updates to these components, please see the following article in the Microsoft Knowledge Base: