@Kevin_Z Hi, as I follow the intrusctions list. Seem like I still facing the problem to access the openvpn. Do I really need to set the DDNS? I dont think turned off the firewall is a great idea...

Hey Guys, Here I encounter some problems on setting the openvpn. When I connect using home wifi the VPN work flawless but when using the mobile data. The vpn failed to reach the tplink VPN. Any...