Setting up SoftEther VPN to work with League of Legends

Hello all, SoftEther VPN is great, but League of Legends games won’t open through it. The client logs in and champ select works fine, but the loading screen won’t open. So there should be an issue with transporting certain protocol if I’m not mistaken. I thought of connecting using OpenVpn (Using SoftEther Server) but it doesn’t work. (I followed this guide https://www.digitalocean.com/community/articles/how-to-setup-a-multi-protocol-vpn-server-using-softether )

Any Help would be greatly appreciated.

Thanks