A. Clear the Networking caches

1. Run windows cmd window (click windows start menu, type 'cmd', right click on 'Command Prompt' and select "Run as Administrator").
2. type "netsh int ip reset"
3. type "netsh int ipv6 reset"
4. type "netsh winsock reset"
5. Restart your computer.

B. Reset Device Manager adaptors

1. Open Device Manager
2. Find Network Adapters
3. Uninstall WAN Miniport drivers (IKEv2, IP, IPv6, etc)
4. Click Action > Scan for hardware changes

The adapters you just uninstalled should come back

The VPN connection then should work.

Original - Fix for windows 10 VPN connection problems "parameter is incorrect" error · Issue #1051 · trailofbits/algo · GitHub