well, my ip external is alltimes the same, its and statical ip ¿ok?, the firewall, mmm i dont know if it are activated or no, the firewall was in the router? , the port 13331 is opened in tcp/udp mode.
The command say this:
debci@debci-desktop:~/development/ethereum$ nslookup ethereumbastion.servegame.com
Server: 192.168.2.100
Address: 192.168.2.100#53
Non-authoritative answer:
Name: ethereumbastion.servegame.com
Address: 92.56.247.196
Edit: I goed to my router confgiuration and i marqued firewall as disabled.
regards