"Error 691" or "Error 734" When You Attempt to Establish a Dial-Up Connection in Windows XP

When you attempt to establish a dial-up connection, you may receive an error message similar to one of the following: As a result, you cannot establish a dial-up connection.

This behavior can occur if any of the following conditions are true:

• The Include Windows logon domain check box is selected in the Options tab of the dial-up connection's Properties dialog box.
  -or-
• An incorrect user name or password is used.
  -or-
• The dial-up connection's security option is incorrectly configured to use the Require secured password setting.

To resolve this behavior, follow these steps:

1. Click Start, point to Connect To, and then click your dial-up connection.
2. Click Properties, and then click the Options tab.
3. Click to clear the Include Windows logon domain check box (if it is selected), and then click OK.
4. Click Dial.
   • If this procedure resolves the issue, and you can establish a dial-up connection; you do not need 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 5 to further troubleshoot this issue.
5. In the Connect dialog box, verify that your user name and password are correctly typed in the User name and Password boxes, and then click Dial.
   • If this procedure resolves the issue, and you can establish a dial-up connection; you do not need 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 6 to further troubleshoot this issue.
6. Click Start, point to Connect To, and then click your dial-up connection.
7. In the Connect dialog box, 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.

For additional information about how to create a dial-up connection in Windows XP, click the article numbers below to view the articles in the Microsoft Knowledge Base: