W10 VPN Error: The L2TP connection attempt failed because the security layer encountered a processing error during the initial negotiations with the r

[Frinkahedron]

Hi guysI recently replaced my hard drive with a SSD and used a clean install on Windows 10 via flash drive / recovery media. All has gone fine, except when I try and log on to my VPN I get the error: The L2TP connection attempt failed because the security layer encountered a processing error during the initial negotiations with the remote computer. I had previously seen this error on my L2TP connected Cisco Meraki VPN, to solve this I uninstalled a Security Update for Microsoft Windows (KB5009543) which caused the problem. However, as I have a fresh install of Windows 10 I don't have a separat

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