734 Error

Error 734: The PPP Link Control Protocol Was Terminated " Error Message Occurs If You Try to Establish a Dial-Up Connection
The information in this article applies to:
Microsoft Windows 2000 Professional

SYMPTOMS
If you try to establish a Point-to-Point Protocol (PPP) dial-up connection, you may receive the following error message:

Error 734: The PPP link control protocol was terminated.
As a result, you cannot establish a dial-up connection.
CAUSE
This issue may occur if either of the following conditions are true:
Multi-link negotiation is turned on for the single-link connection.

-or-
The dial-up connection security configuration is incorrectly configured to use the Require secured password setting.
RESOLUTION
To resolve this issue:
Click Start, point to Settings, and then click Network and Dial-up Connections.
Right-click the appropriate dial-up networking connection, and then click Properties.
Click the Networking tab, and then click Settings.
Click to clear the Negotiate multi-link for single link connections check box (if it is selected).
Click OK, and then click OK.
Double-click the connection, and then click Dial.
If this procedure resolves the issue and you can establish a dial-up connection, you do not have to follow the remaining steps in this article.
If this does not resolve the issue and you cannot establish a dial-up connection, go to step 7 to continue to troubleshoot this issue.
Right-click the connection, and then click Properties.
Click the Security tab.
Under Security options, click Allow unsecured password in the Validate my identity as follows box, and then click OK.
Double-click the connection, and then click Dial to verify that you can establish a dial-up connection.