Microsoft KB Archive/185533

= TCP/IP Does Not Work After Upgrading to Windows 98 =

Article ID: 185533

Article Last Modified on 1/23/2007

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APPLIES TO


 * Microsoft Windows 98 Standard Edition

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This article was previously published under Q185533



SYMPTOMS
After you upgrade a Sony VAIO Model PCV 70/90 computer running Microsoft Windows 95 OEM Service Release version 2.0 to Windows 98, the Transport Control Protocol/Internet Protocol (TCP/IP) may not function correctly. You may experience one or more of the following symptoms:

 You may be able to connect to your Internet service provider (ISP) by using Dial-Up Networking, but you may be unable to browse the Internet. Also, you may receive the following error message when you try to access a Web address:

Internet Explorer can not open the Internet Site HTTP://?. A connection with the server could not be established."

 If your computer is part of a network, TCP/IP-based connectivity may no longer function properly. For example, if your computer was configured to use TCP/IP to access a network printer, you may be unable to do so now.

Note that the functionality of other network protocols installed on your computer remains unaffected.



CAUSE
This issue can occur if the value of the CompatIDs key in your registry is incorrectly set to "TCP/IP" instead of "MSTCP". Because of this, Windows 98 Setup does not properly upgrade some of your computer's TCP/IP-related files.



RESOLUTION
To resolve this issue, uninstall and then reinstall TCP/IP. To do so, use the following steps:


 * 1) Click Start, point to Settings, click Control Panel, and then double-click Network.
 * 2) On the Configuration tab, click TCP/IP, and then click Remove. Note that you must repeat this step for each instance of TCP/IP on the Configuration tab before continuing to step 3.
 * 3) Click OK, and then click Yes when you are prompted to restart your computer.
 * 4) Click Start, point to Settings, click Control Panel, and then double-click Network.
 * 5) Click Protocol, click Add, click Microsoft in the Manufacturers box, click TCP/IP, and then click OK.

NOTE: You may receive version conflict error messages during this process. If this happens, click No when you are prompted to keep a newer version of each file.
 * 1) Restart your computer.

Keywords: kbnetwork kbprb KB185533

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