Microsoft KB Archive/173644

= Microsoft Knowledge Base =

"Error 645" When Attempting to Connect to MSN
Last reviewed: October 6, 1997

Article ID: Q173644

The information in this article applies to:


 * The Microsoft Network version 2.5

SYMPTOMS
When you attempt to connect to MSN, The Microsoft Network, you may receive the following error message:

Error 645

CAUSE
This behavior can occur if Dial-Up Adapter components are damaged or missing.

RESOLUTION
Remove and reinstall the Dial-Up Adapter and Dial-Up Networking. To do so, use the following steps:


 * 1) Click Start, point to Settings, and then click Control Panel.
 * 2) Double-click Network.
 * 3) Click Dial-Up Adapter, and then click Remove.
 * 4) Click OK.
 * 5) When you are prompted to restart your computer, click No.
 * 6) Double-click Add/Remove Programs.
 * 7) On the Windows Setup tab, click Communications, and then click Details.
 * 8) Click the Dial-Up Networking check box to clear it.
 * 9) Click OK until you return to Windows.
 * 10) Close the Control Panel window.
 * 11) Restart the computer.
 * 12) Double-click The Microsoft Network.
 * 13) When the Connection Manager dialog box opens, click Yes, and then click OK. Follow the instructions on the screen. You may be prompted for your Windows disks or CD-ROM.
 * 14) When you are prompted to restart the computer, click Yes.

MORE INFORMATION
For more information about manually configuring the Transport Control Protocol/Internet Protocol (TCP/IP), see the following article in the Microsoft Knowledge Base:

ARTICLE-ID: Q172552 TITLE    :  How to Configure TCP/IP for The Microsoft Network