https://wiseoneup.clickvalley.in/ for knowledge and fun Articulate, blogging built on Umbraco 1239 https://wiseoneup.clickvalley.in/articles/can-t-connecto-to-vpn-the-l2tp-connection-attempt-failed-because-the-security-layer-encountered-a-processing-error-during-initial-negotiations-with-the-remote-computer/ Technology <p>After recent Windows 10 update, you may get this error while trying to connect through Windows 10 in-built VPN client.</p> <p> </p> <p><strong>Can’t connecto to vpn. The L2TP connection attempt failed because the security layer encountered a processing error during initial negotiations with the remote computer.</strong></p> <p> </p> <p><strong><img src="https://wiseoneup.clickvalley.in/media/ipxlgthi/image.png?mode=max&amp;width=361&amp;height=236" alt="" width="361" height="236"></strong></p> <p> </p> <p>The easiest fix is to uninstall the latest windows security update. Open Control Panel -&gt; Programs and Features. Click on “view installed updates” link –</p> <p><img src="https://wiseoneup.clickvalley.in/media/0c5ljohv/image.png?mode=max&width=500&height=108" alt="" width="500" height="108"></p> <p> </p> <p>And you should see a Windows security update KB5009543. Uninstall this update. It may require a windows reboot.</p> <p><img src="https://wiseoneup.clickvalley.in/media/j3sd3kne/image.png?mode=max&width=500&height=102" alt="" width="500" height="102"></p> <p>To stop Windows from installing this update again, you can turn updates off till the time Windows pushes another update to fix this problem.</p> Thu, 27 Jan 2022 12:00:00 +0530 2022-01-27T12:00:00+05:30