Dynamics NAV 2015 webclient

Hi

Using Azure I have installed the Dynamics NAV 2015 image. The installation went fine and I can access the Dynamics NAV when I log on to the server using remote desktop. I can access the webclient as long as i am on the server but accessing it through my IE on my PC does not work for me.

I get a session timeout when I try to access like this

http://ComputerName:PortNumber/NAV/WebClient/

or

http://IPaddress:PortNumber/NAV/WebClient/

I have checked that the IIS does allow for incoming traffic on port 8080.

Am i missing some configuration or shall I use another address to access NAV from my PC?