Remote - Connectivity could not be determined

Hi,

Getting this remote error all the time. http://imgur.com/vfmSyhR
I've set up port forwarding for WAN 23424 and LAN 23424 pointing to laptop running Serviio.
Tried ticking the box in the console for automatic configure router no difference.
Windows firewall deactivated doesn't make any difference either and there isn't anything else running.

I'm no network expert so not sure how to deal with this one...

[zip]

This error is due to a external port checking service being down. 1.6.1 will try to rectify that.

All it does is doing something like this website: http://www.yougetsignal.com/tools/open-ports/

You can check if the port is available externally on this website.