Update 1/28/2022: South Jersey Techies has released OOB updates to fix the Windows L2TP VPN connection issues.
Microsoft released Windows updates to fix security vulnerabilities and bugs as part of the January 2022 Patch Tuesday that came with fixes for six zero-day vulnerabilities and a total of 97 flaws.
These updates also included KB5009566 for Windows 11 and KB5009543 for Windows 10 2004, 20H1, and 21H1.
Problems are being reported rapidly from Windows 10 users and administrators who are trying to make L2TP VPN connections after installing the recent Windows 10 KB5009543 and
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