New Router: ASUS RT-AC68U. Firmware: 376.47 (Merlin Build) DYN service: Host my Domain name, running a utlility to track IP changes AC68U to AirVPN tunnel setup, working fine ..   AirVPN Port Forward: for 192.168.1.130 - a local port mapped to 103.10.197.187 (public), forward to 10.4.21.250 (internal) Local IP Address: 192.168.1.130 is manually assigned to my website (host on my Macmini server) Router to AirVPN tunnel setup completed, working fine ..i.e. MacPro, or Iphones are all able to access