Frapla

Hi Zyxel_Cooldia, I managed to find these indications from the console. I don't understand where is the error. If I try to connect within the network the tunnel opens regularly while connecting from outside the tunnel does not open and generates this error. Can you help me please? Thank you so much.

Thanks a lot for your support. Unfortunately opening the tunnel nothing appears in the console, the tunnel remains red

Thank you so much. ZyWall is set in dhcp dns how should i replace it? is that what causes me the problem?