Windows 10: VPN connection via internal client stopped working after 20H2 update

Discus and support VPN connection via internal client stopped working after 20H2 update in Windows 10 Network and Sharing to solve the problem; I have a L2TP/IPSet with pre-shared key VPN connectionFoobarVPN that is configured via: Set-VpnConnectionIPsecConfiguration -ConnectionName... Discussion in 'Windows 10 Network and Sharing' started by muellermat, Nov 16, 2020.

  1. VPN connection via internal client stopped working after 20H2 update


    I have a L2TP/IPSet with pre-shared key VPN connectionFoobarVPN that is configured via:

    Set-VpnConnectionIPsecConfiguration -ConnectionName "FoobarVPN" -EncryptionMethod AES256 -CipherTransformConstants AES256 -IntegrityCheckMethod SHA256 -PfsGroup ECP256 -DHGroup ECP256 -AuthenticationTransformConstants SHA196 -PassThru -Force

    Additionaly, the VPN Connection Properties of the adapter are set like here:
    VPN connection via internal client stopped working after 20H2 update b1afd076-6264-444c-8e84-29f78ceb9403?upload=true.png

    Right after installing the 20H2 Windows update this connection stopped working. The error message just tells me
    that the connection can't be established pop ups within 1s and that I should reconfigure my connection. So I deleted the connection and created it again, but the error stays.

    Since reverting the 20H2 update via Recovery the connection works fine again.
    Are they any vpn related known issues regarding the 20H2 update or any idea how I can fix it?

    :)
     
    muellermat, Nov 16, 2020
    #1

  2. How to get on internal network to VPN to a client


    I am looking for ways besides RDP to have employees connect to my work's internal network at another location so that they can VPN to one of their client's. The VPN connection only works from the internal network as their Sonicwall configuration is setup to allow it through IP's on my work's network.
    Any third-party apps, Windows settings, or other suggestions are welcomed.
    One suggestion by a friend was to use Cendio, an open source Linux remote desktop server.

    I have a Windows Server 2016 Standard machine and several Windows 10 Pro machines
     
    JesseTechHelp, Nov 16, 2020
    #2
  3. eeps24 Win User
    Best FREE vpn client? Need to connect to my home VPN


    I created a remote access VPN (l2tp/ipsec) on my router at my house. If I want to connect to my VPN server remotely ,what do you suggest as a good free vpn client?

    I know windows 10 has a built in vpn client, but would I notice any improvments (speed, stability, etc) using like cisco anywhere connect or any other free vpn clients?
     
    eeps24, Nov 16, 2020
    #3
  4. VPN connection via internal client stopped working after 20H2 update

    Third-party VPN client stops Internet connectivity in Windows 10

    There is an
    issue regarding VPN client in Windows 7
    , and a hotfix for it, but I have met exactly the same problem in Windows 10 with the latest updates at the moment, and that fix doesn’t work for it.

    Also, I thoroughly googled the Internet, especially Microsoft websites, in search of a solution, but I didn’t find any. I also didn’t find a way to report the issue directly to MS representatives, only this community.

    Can anyone here suggest how to fix the problem, apart from rolling back to Windows 7 and applying the aforementioned hotfix?
     
    8ff559aa-5b91-4ef9-880a-293b14662a9d, Nov 16, 2020
    #4
Thema:

VPN connection via internal client stopped working after 20H2 update

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