Microsoft KB Archive/140460

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Dial-Up Networking Does Not Obtain an IP Address

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Q140460

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The information in this article applies to:


 * Microsoft Windows 95

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SYMPTOMS
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.

CAUSE
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.

RESOLUTION
This issue is resolved by the following updated file(s) for Windows 95, and later versions of these file(s):

  PPPMAC.VXD  version 4.00.953  dated 7/9/96  135,288 bytes VDHCP.386  version 4.00.952  dated 7/9/96  27,973 bytes

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.

STATUS
Microsoft has confirmed this to be a problem in Microsoft Windows 95. An update to address this problem is now available, but is not fully regression tested and should be applied only to computers experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft does not recommend implementing this update at this time. Contact Microsoft Technical Support for additional information about the availability of this update.

This issue is resolved in Microsoft Windows 98.

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

Q165402 Windows 95 Update to Encrypt Passwords in Memory

Q164377 Cannot Connect to Remote Access Server with Dial-Up Networking

Q149396 Cannot Change Expired Windows NT Password with DUN Q158713 Fatal Exception Error Using DHCP

Q147872 Unable to Lease IP Address from DHCP Server For additional information about Windows 95 updates, please see the following article in the Microsoft Knowledge Base:

"Q161020 Implementing Windows 95 Updates" Keywords : kbenv kbnetwork kbpolicy dun win95

Issue type : kbprb

Technology : kbWin95search kbWin95