Microsoft KB Archive/199780

= Error Message "Error 645" Using Dial-Up Networking =

Article ID: 199780

Article Last Modified on 1/23/2007

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APPLIES TO


 * Microsoft Windows Millennium Edition
 * Microsoft Windows 98 Second Edition
 * Microsoft Windows 98 Standard Edition
 * Microsoft Windows 95

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This article was previously published under Q199780



SYMPTOMS
When you attempt to establish a connection with Dial-Up Networking (DUN), you may receive the following error message:

Dial-Up Networking could not complete the connection to the server. Check your configuration and try the connection again.



CAUSE
This behavior can occur if the Require encrypted password option is enabled on the Server Types tab in the connection's properties, or an incorrect user name or password has been entered.



RESOLUTION
To resolve this behavior, follow these steps:
 * 1) Verify that your user name and password are correct. If this resolves the issue, skip all the remaining steps. Click Start, point to Programs, point to Accessories, point to Communications,and then click Dial-Up Networking.
 * 2) Right-click the icon for your connection, and then click Properties.
 * 3) For Windows 95, 98 and 98 Second Edition:

Click the Server Types tab, click to clear the Require encrypted password check box, and then click OK.

For Windows Millennium Edition (Me):

Click the Security tab, click to clear the Require encrypted password check box, and then click OK.



MORE INFORMATION
You may also receive this error in Windows 95 if TCP/IP is not installed and a dial-up connection is attempted.

Keywords: kbdialup kberrmsg kbfaq kbfaq kbprb KB199780

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