The error you pasted is pretty generic, you should enable debugging and then try to see what line of code it stops at. I tried to replicate what you are experiencing but it does not do this on my setup. I am having couple of other issues which i posted here as nasty bugs, and are for sure not cuz of my setup, however yours seems like its cuz of how your machine is setup. Did you check for firewall issues? Is your windows firewall down? close that crap if its running. I wonder if you saw what i see in my problems?

 

 

P.S. 

(I do not work for cutesoft, im just like you trying to integrate it in my project before buying)