Feedback, Complaints or Problems

I cleared the cache in every browser I have, also from windows, shutdown the anti virus and the firewall, and finally restarted the router , any idea what else could be the problem ?

Something on your system or network is blocking the trainer. You will have to systematically figure out what it is, we have no way of knowing.

is there a need to forward a specific port number ?

No, it's a simple port 80 call.