Thanks for posting in the answers forums.
In regards to how you can connect to your Slingbox in a remote location, you have to make sure the Internet Viewing has passed TCP streaming. When a person can connect in the LAN (local area network) and can not connect in a remote location, this would be the case.
The following article will explain a little more into this under uPnP and Port Forwarding:
If you are not familar with Port Forwarding, you can check out this link below that can help you Port Forward your Router:
Hope this helps!!
Sling Media Moderation Team