Need config Astrill in Pfsense Firewall.
Astrill told me that unfortunately, they don't have guide on how to setup OpenVPN on Pfsense as it's not officially supported. I trie use .ovpn archive, but whithout sucess.
In my test i receive the message bellow.
TLS Warning: no data channel send key available: [key#0 state=S_INITIAL id=0 sid=00000000 00000000] [key#1 state=S_UNDEF id=0 sid=00000000 00000000] [key#2 state=S_UNDEF id=0 sid=00000000 00000000]
But CA , Cert and key are from arquive config from Astrill........ if i use this arquive to config Tunnelblink VPN, this work usually .
No idea about Astrill, but maybe this one helps: https://www.netgate.com/resources/videos/openvpn-as-a-wan-on-pfsense.html