I have 2 Asterisk Server, the german server (GER) with a static IP and the Server (SA) in Saudi Arabia with dynamic IP adress. For the SA server I am using a domain service from no-ip.org. Each server internal are using sip. Sever to Server IAX2. I have made in SA a portforwarding in my router to the asterisk server 4569 TCP and UDP. Both servers are connected everything is working well. But after 3 or 4 hours, the servers are dicconnected. The WAN IP adress has NOT changed on Server SA. IAX2 reload on both servers without result. I get the message: “request send” or “Time out” on both servers. The firewall on both servers are disabled. When I reset my router, it works well for 3 or 4 hours again. If my system is working and I disconnet the ADSL cable to my ISP, wait for one minute, I get a new WAN IP adress. After my no-ip Client update my WAN IP-adress, both servers are connected. In this case I have not to reboot my router.
WhatÂ´s happend when they are disconnected after 3 hours and each server coudnÂ´t found each other?