Help Fix Windows 7 Vpn Connection Failure With Error 691

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    Over the past few days, some of our readers have come across the well-known “windows 7 VPN Connection Failed with Error 691” error message. This problem can occur for many reasons. We will review them below. VPN error 691 occurs when our own settings are not set correctly for the type of client or computer and server, this also means that the connection cannot be verified. error Usually 691 occurs due to an incorrect username or even password.

    When you encounter a VPN, the error is usually a problem with your connection settings. Error 691 is a remote access error that occurs even if you don’t have a dial-up connection. This is due to the strategy with which the network layer of the osi model works, namely that this type uses what is not wasted. Since the error occurs at the same time for the same reason, the network layer generates this dial-up error even if the connection is not a dedicated dial-up connection.

    Error 691 in Occurs when the settings from one smartphone (client or server) are at all and incorrect so that the authenticity of the disconnect can be authenticated. The most common reason is an incorrect username or password. This can also happen if you are using a public vpn, your main access has been revoked. You are agreeing to connect to an unauthorized VPN with a non-identical domain, domains not authorized at all OR the security protocols required for the handshake do not match.

    The error also occurs when any technician tries to connect to the VPN server.691:

    Error: The remote connection was refused because the username you entered and the username/password combination could not be authenticated, or the selected authentication protocol is not allowed for the remote access server.

    Method 1: Allow Microsoft CHAP Version 2

    Moreover, since this is a VPN connection error, you will need to change the VPN location to access it. changing Although the authentication level and encryption settings can beIt doesn’t help to break the VPN connection, the biggest problem can also occur when sending the connection, so you may need to change the protocol so that the VPN can connect to the VPN in a different way. . .

    windows 7 vpn connection failed with error 691

    If necessary, go to the “Security” tab and activate the following 2 options.

    Allow these protocols and Version microsoft Fellow 2 protocols

    Method 2: Disable “Enable Logon Domain In Windows VPN Settings”

    This error can occur if the VPN client tries to connect using its own domain, but the domain on the server is often different, or the server only authenticates with a username and password.

    Right-click the VPN connection and select Properties. Go to the Options tab and uncheck “Enable domain for logging in

    Windows Method” 3. Changing LANMAN Settings

    How do I fix VPN error 691?

    check that the username of the password and the likely person are correct. Microsoft Youuse CHAP version 2.Disable the “Enable for Windows logon” domain option.Check your connection comfort settings.Edit the LANMAN settings.

    Typically, if the client has a newer OS and connects to an older server and uses a vpn, the cipher set on the client as well can cause this error.

    Hold down some of the Windows keys R and . Enter secpol.msc and click OK. Go to “Administrator”Security -> Local Security Policy -> Local Policies -> Security Options and select Network Security: Manager LAN Authentication Level twice and click it.

    In the appropriate local security setting, set the product to “Send only NTLM and lm responses”.

    Next, navigate to “Network Security: Minimum Session Security for NTLM SSP” on your own and click Yes. In the local security settings, disable the 128-bit Require Security option.

    What is Windows VPN error 691?

    A VPN, also known as a virtual private network, is the fastest way to stay private online. However, errors can occur when connecting to a VPN, one such error is Windows VPN error 691. This usually occurs when there are problems with the network protocol settings, firewall blocking consent problems, remote access, connection problems, etc. d.

    Kevin is a dynamic and/or IT professional, driven and driven with in-depth knowledge of all aspects of network infrastructure design, implementation and procedures. Supervisor-record holder who simultaneously completes large critical projects on time, within and within budget.

  • Hello,

    Thanks for working with your post.

    Error 691: Access denied because and/or usernameThe alias and password on the domain are probably almost invalid.

    You can do the following:

    Which has failed the error code returned on failure is 691?

    Error 691 “The remote connection is already so rejected as the username and password combination you entered is simply not recognized or recognized. The selected authentication project is not authorized on the remote access server in case of account lockout.

    1)Make sure that you have entered the correct logon ID in addition to the password.
    2) Make sure that the Enable Windows logon domain check box is unchecked.Tab related “Options”, with dial-up connectionProperties dialog box.
    3) Verify that the dial-up security feature is properly configured to use it.Password protected setup required. Delete
    4) everything is similar to *.pwl files and reboot if you are using win9x.
    5) Try using a different login ID or a new ID in the login manifest, as the account might be corrupted. Messages

    These analogues may be useful to you:

    Please note that since I would say the site is not hosted by Microsoft, the link may change without loading. Microsoft does not guarantee the accuracy of this information.

    may also request additional help with Windows Server:

    Can’t connect to VPN the connection was terminated by the remote computer before it could be completed?

    Right-click a specific VPN connection and go to Properties. Go to the “Security” tab. Some here, “These protocols and allow”, check the first boxes 3. Handshake “challenge Authentication Protocol (CHAP)” and refuseCheck out almost everyone else.

    windows 7 vpn connection failed with error 691

    The reason we recommend posting properly is usually because you’re getting the most educated group of respondents and two more people to do it. If you regularly read the forums, you can either share what you know or learn from your interactions with us. Thank you for your understanding.

    Kind regards


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    How do I fix VPN error 619?

    Reinstall the VPN app.Prevent connection differences On your computer’s vpn.firewall,Disable as well as anti-virus programsCheck the VPN on another PC.Set up RRTP.

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