The server setup is as follow: The server is a VM running on Windows Azure. The IP of the server is internally 100.X.X.X. The external address is 137.X.X.X and there are made portforwardings for UDP port 2300-2305.
The Arma 3 server is setup in config to use port 2300-2305.
The server works fine when connecting directly to ip and port (137.X.X.X:2302). When connecting via ingame browser, a “connecting failed” is reported.