Error when you try to establish a dial-up connection: Error 734: The PPP link control protocol was terminated

This article helps fix an issue where Error 734: The PPP link control protocol was terminated occurs when you try to establish a dial-up connection.

Applies to:   Windows 2000
Original KB number:   318718

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 can't establish a dial-up connection.

This issue may occur if either of the following conditions are true:

• Multi-link negotiation is turned on for the single-link connection.

• The dial-up connection security configuration is incorrectly configured to use the Require secured password setting.

To resolve this issue:

1. Click Start, point to Settings, and then click Network and Dial-up Connections.

   Note

   For Windows Server 2003, click Start, point to Control Panel, and then point to Network Connections.

2. Right-click the appropriate dial-up networking connection, and then click Properties.

3. Click the Networking tab, and then click Settings.

4. Click to clear the Negotiate multi-link for single link connections check box (if it's selected).

5. Click OK > OK.

6. Double-click the connection, and then click Dial.

   • If this procedure resolves the issue and you can establish a dial-up connection, you don't have to follow the remaining steps in this article.
   • If this doesn't resolve the issue and you can't establish a dial-up connection, go to step 7 to continue to troubleshoot this issue.

7. Right-click the connection, and then click Properties.

8. Click the Security tab.

9. Under Security options, click Allow unsecured password in the Validate my identity as follows box, and then click OK.

10. Double-click the connection, and then click Dial to verify that you can establish a dial-up connection.