Windows 10: Security Update KB5009566 VPN Connection Issue

Discus and support Security Update KB5009566 VPN Connection Issue in Windows 10 Software and Apps to solve the problem; Hi,I have realized that the KB5009566 is creating problems with VPN connections and many users have problems. Once uninstalled the update, all works... Discussion in 'Windows 10 Software and Apps' started by BerkIsbilir1, Jan 23, 2022.

  1. BERKISBILIR1
    BerkIsbilir1 Win User

    Security Update KB5009566 VPN Connection Issue


    Hi,I have realized that the KB5009566 is creating problems with VPN connections and many users have problems. Once uninstalled the update, all works fine but it then automatically be installed again. This is getting boring and inefficient. Is there a way to skip this update or maybe block it from being installed ? Or maybe a better solution, knowing that most of its customers having problem with it, Microsoft will correct the issue asap, any plans ?Error on Event Viewer: CoId={77359A7D-1080-0005-C57C-36778010D801}: The user SYSTEM dialed a connection named&nb

    :)
     
    BerkIsbilir1, Jan 23, 2022
    #1
  2. KNOXX29
    Knoxx29 Win User

    Vpn ( trusted Vpn)

    Hi everyone.
    I am not an expert about Vpn and that's why I would like to know if someone could list me a few trusted Vpns, I would really appreciate any suggestion/ advice.

    Thanks.
     
    Knoxx29, Jan 23, 2022
    #2
  3. AJ99000
    aj99000 Win User
    No Internet Connection When VPN Is Connected

    This particular issue has been going on for almost a month now. My companies IT department is still trying to figure out the root cause. Below is a list of isolation / troubleshooting i've done.

    Issue: Once connected to the work VPN (successfully) the internet connection on the Windows 10 machine disconnects and does not allow any network traffic.

    OS: Windows 10 Home - Version: 1909 (OS Build 18363.476)

    Computer: Razor Blade 2019

    - Latest drivers installed

    - Latest Windows updates installed

    - System Wide issue

    Troubleshooting / Isolation

    • Cellular Data: Verified the Windows machine can connect to a hotspot and successfully browse the internet. (No VPN involved)

    • Cellular Data + Work VPN: Verified the Windows machine can connect to the hotspot & successfully connect to work VPN and successfully browse the internet.

    • Home WiFi: Verified Windows machine can connect to the home wifi network and successfully browse the internet (No VPN involved)

    • Home WiFi + Work VPN: Verified Windows machine can connect to home WiFi. It can successfully connect to work VPN. However once the work VPN is connected, the home WiFi network indicates (No Internet Access)

    • Ping Test + Work VPN: Verified I can successfully ping (work) websites and even the work VPN URL successfully without any packet loss. However once I go to ping (non-work) related addresses like google.com, apple.com etc. there is packet loss.

    At this point I decided to test my work VPN on my iPhone & Apple Mac.

    • iPhone: Home WiFi + Work VPN: Verified the iPhone successfully connects to home WiFi network and the work VPN and can successfully browse the internet.

    • Mac: Home WiFi + Work VPN: Verified the Mac successfully connects to home WiFi network and the work VPN and can successfully browse the internet.

    Isolated: Only the Windows machine seems to be affected. I even verified this issue occurs on multiple Windows user accounts on the Windows 10 machine.

    - Windows 10 is fully updated to the latest November Windows 10 update and issue persists

    - Deleted and Added the VPN configuration several times and issue persisted.

    Third Party VPN Client Test: Tested with Nord VPN and the Windows machine successfully connected to the home WiFi network & the Nord VPN connection successfully connected to a random server and successfully browsed the internet.

    - Disabled IPV6 on VPN & WiFi network configuration (Per IT Support guidance) and issue persisted

    *Currently updating to Windows 10 Insider Preview 19033.1 (vb_release) to see if this might fix anything pertaining to Windows 10 VPN.

    Thanks for any additional guidance / suggestions / help that the community offers.
     
    aj99000, Jan 23, 2022
    #3
  4. P4-630
    P4-630 Win User

    Security Update KB5009566 VPN Connection Issue

    Vpn ( trusted Vpn)

    Tired of Germany blocking many youtube videos? *Big Grin Security Update KB5009566 VPN Connection Issue :D
     
    P4-630, Jan 23, 2022
    #4
Thema:

Security Update KB5009566 VPN Connection Issue

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