Hello,
I still couldn't access isy99i over internet.
I did the port forward on my D-link DI524 router (its a compatible router) using DMZ configs as you said in the e-mail below.
When I did it I couldn't find the administrative console anymore using the local IP adress (192.168.0.124) to enable internet access on ISY99i.
Then, I disabled the port forward and returned to ISY99i administrative console to enable internet access. When I clicked on it, I received thru a popup the address for internet access (something like https://189.110.33.33)
So I turned on again the portforward in my router (using the local IP address).
So I accessed the whatsmyip.com to discover whats my ip.
With a 3G connection, I tried to connect using the IP I discovered in whatsmyip and the browser couldn't find it.
I tried to find the https address that ISY99i gave me to access and it was not found too.
But, If I try to access using the computer connected to this router, I can access using the IP assigned to my router. But I couldn't access using the https address ISY99i gaves me.
Does anyone know what could be the problem?