Hellp Sparky82, you can solve your issue by asking the ISP to unblock the port. If it’s not possible then you can use a non-standard port. There is this possibility that you get applications to operate on non-standard ports. Check this site out http://whatismyip.network/detect-isp-proxy-tool/ for more info. As an instance, although HTTP uses port 80 by default there is nothing preventing us from commanding http to utilize another port like 79. To utilize a non-standard port setup your router to forward this latest port to the inner device you needs to communicate with. I hope that by doing that you would be able to fix your issue easily.