We encourage you to check all the connections (especially the coaxial cable on the back of the Slingbox), then run the detailed channels scan and use the web-based application through www.slingbox.com in order to complete this process.
Make sure to follow these steps and post your results.
I have completed this process and have the same problem. A co-worker also has this same problem with his slingbox.
To be clear. The box is connected by Coax. But it is an in-house cable system (not something like Comcast, Time-Warner or Rogers). Whenever I select one of the QAM channels on our system (they are in the clear, not encrypted), my slingbox reboots (as does my co-workers).
I don’t know if maybe it is because I have to enter a zip/postal code to get a program guide? Since our system doesn’t have a program guide I had to select a normal cable company. Is it possible that because the digital channel I am calling up is not mapped in the program guide – the box reboots?