If you are currently away from home, you are limited in what you can do to troubleshoot the problem. But there are a few things you can try to help narrow down what the issue might be. One thing you can do is try is another network. If you are at work or in a hotel, try going to a local Internet cafe and try connecting to your Slingbox from there. Every network has different security levels that are all set by the administrator of that network. And there is a chance that the network you are connected to is limiting access to certain file types (like streaming video) or ports.
Below are some articles with some detailed info.
| 
