I think the best solution for you is the smart outlets, power adapters which which you can manually switch off and back on using a phone application, then you manually power off and back on your slingbox http://postscapes.com/smart-outlets
I think the first belkin will do the job for you
I have resently had a problem, where I could not connect to my Slingbox from any device. When I returned home and reset the box (power off/on) it worked fine again.
Often I'm away from home for extended periods of time with no possibility of handling the box. Have you any suggestions - other than training my neighbour to reset the box for me when the hang occurs?
Your answer will be appreseated. Thank you.