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Error 691Access Denied Because Username Password Invalid On Domain Win 98
  • Article ID: 32999
  • Last modified date: November 4, 2010 12:11

691 errors can generally be resolved by correcting your username and password.  You may see a 691 error displayed in one of the following two formats.

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

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

To resolve this issue:

Check your User Name and Password

  1. Passwords are case sensitive.  Make sure you do not have the CAPS LOCK key on and that you are entering your password in the same case sense as when you first set it up.
  2. Click Start, point to Connect To, and then click your dial-up connection (you may need to select it and click the Connect button.  (On Windows 7 click the Network icon on your taskbar , select your dial connection and then click Connect.)
  3. In the window that opens, make sure your User name is your full email address, that includes the @( part of the email address.  Re-enter your password in the Password field.

Try your connection again to see if you can connect.

Other Options:

The following are less common issues that could result in a 691 error.  

You are not dialing an approved number.  

Check for a list of access numbers near you.  Use the same steps as above to open your connection and then correct the telephone number you are dialing.

The dial-up connection's security option is incorrectly configured to use the Require secured password setting. 

  1. Click Start, click Control Panel, click Network and Internet Connections, and then click Network Connections
  2. Click your dial-up connection, and then click Change settings of this connection under Network Tasks.
  3. Click the Security tab, and then verify that Typical (recommended settings) is selected.
  4. In the Validate my identity as follows box, verify that Allow unsecured password is selected.
  5. Click the Options tab.
  6. Click to clear the Include Windows logon domain check box (if it is selected), and then click OK twice.

    For Windows 7:

  1. Click the Network icon on your taskbar ,
  2. Select your dial connection and then click Connect.
  3. Click on Properties
  4. Click on the Security Tab
  5. Make sure Allow these protocols is selected and that there is a check in the box next to Unencrypted password (PAP), Challenge Handshake Authentication Protocol, and Microsoft CHAP.  Automatically use my Windows logon should NOT be checked.
  6. Click OK and the Dial to attempt to connect again.


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