Error 691: The computer you are dialling in to cannot establish a Dial-Up Networking connection. Check your password, and then try again.

Error 691: Access was denied because the username and/or password was invalid on the domain.

 

This error is generally caused by you using the wrong username or password. The "Include Windows logon domain" check box is selected or the "Require secured password" setting is selected.

FIX 1:

• Confirm Username and Password or renter them before connecting. Check that Caps etc are not on. Most logins are case sensitive.

FIX 2:

• Click "Start", point to "Connect To", and then click your dial-up connection.

• Click "Properties", and then click the "Options" tab.

• Click to clear the "Include Windows logon domain" check box (if it is selected), and then click OK.

FIX 3:

• Click "Start", point to "Connect To", and then click your dial-up connection.

• In the "Connect" dialog box, 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".