I understand that you are having some issues with the Slingbox Classic and SlingCatcher connection.
Most of the times, this issue is related to the connection speed you get. You can go to www.speedtest.net in order to know if your connection speed meets the requirement. As a second option, you can reset the Slingbox and run the Setup Assistant for Internet Viewing one more time.
Regarding your question, the signal is streamed through the Sling Media servers when you use your Slingbox.
Make sure to follow these recommendations and post your results.
Thanks for your response, Rana
Streaming speed is not the problem. My download speed at the Slingcatcher end is around 50 Mbps and upload speed about the same at the Slingbox end. When watching the Slingcatcher, or the PC, or the Mac, the reported stream is usually between 1200 and 2300 Kbps. So, as I said, the connection speed is not the problem.
The Slingbox has been reset but the symptoms persist, so the Slingbox does not appear to be the problem.
Any other suggestions?
The stream is direct the sling media servers only locate your device. If the rate remains constant then the issue must be The viewing pc. Check your resources. Is there more programs running using more memory causing the video to page to the hard drive? Does the hd light come on when the freeze happens? If you can post a screen shot of the streaming stats.
check this post