Mike bought a Slingbox about six years ago and it worked great as he traveled the world. But now with iOS 10, it doesn't work. So now he has to bring along another iPad with the old version of iOS 9 on it. Leo says that's likely going to be the only fix. Dish bought Sling and converted it to a TV service. Now it's effectively 'end of life' for the previous hardware because they want people to spend $10 a month to stream it.
While Leo is a fan of Slingbox, times have changed. There are other way to do it now via KODI, Plex, and others. There's a great Reddit thread here that talks about this and how he can work around it.