If you are having issues viewing your Slingbox outside your home network you may want to check the settings in your router. It sounds like you may need to port forward for the Slingbox within your home router.
Here are some articles that may be able to assist you:
- Solving general problems with Internet Viewing
- The Internet viewing experience
- Internet Viewing has stopped working and I am not at home
Hope this helps!
The Sling Moderation Team - Leanne