Hi Ryan. I'm Greg, an installation specialist and 9 year Windows MVP here to help you.
Others are reporting this in v.1903;
https://www.reddit.com/r/sysadmin/comments/bs0m...
Can't connect Windows 10 version 1903 to VPN:
https://www.techrrival.com/fix-vpn-not-working-...
https://thebestvpn.com/troubleshoot-vpn-connect...
https://www.thewindowsclub.com/vpn-not-working-...
If the above doesn't help then I suggest you contact our sister forums for IT Pro's Technet:
https://social.technet.microsoft.com/Forums/en-...
I hope this helps. Feel free to ask back any questions and keep me posted. If you'll wait to rate whether my post helped you, I will keep working with you until it's resolved.
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