IPSec not connecting on Android?

[A_Galaxy]

Recently setup a standard IPSec VPN. It works perfectly on any Windows/Linux machine. Only problem is, is that I can't connect to it from any Android/Apple device using the exact same information. Any idea why this would be?

[dimm56]

Configured by this method. Everything works and Apple and Android devices.
https://docs.netgate.com/pfsense/en/latest/vpn/ipsec/configuring-an-ipsec-remote-access-mobile-vpn-using-ikev1-xauth.html