I have an IP webcam and had set up a domain to point to it at home. I use a dynamic DNS service for this as my ip is not static.

I've had this working fine for long time, but now it just seems not to. Even if I type the IP of the router and the forwarded port, it still wont work.
(it works fine if I type its local IP 192.168.......)

Rather than any error, it looks like it begins to load (title bar of IE changes for example) but the page just stays blank and trying to load forever.

As far as I can tell, I have forwarded the port correctly and configured the cam.

Any suggestions?