I finally set up my new Slingbox 500. I can watch all TV channels with my laptop W8. HoweverI am not able to see it with Ipad slingplayer. it buffering for a long time then played a second or so, back to buffering. How to fix it. For your information, the laptop, ipad and slingbox are on the same home wifi network.
Take a look at this article. It will help to address a number of factors that could affect your picture quality, as well as buffering issues.
Hope this helps!