Hello Ricky Query,
I understand that you are not able to stream using the new iOS update. We have been able to identify a problem with the iOS Mac Sierra, and our engineering department is working on a fix right now. Although some customers have successfully accessed watch.Slingbox.com through a different browser such as Chrome, Internet Explorer or Firefox. We have found a fix, but at the moment we are beta testing before launching the supported SlingPlayer app. We will post an update on community.Slingbox.com once we have launched the new updated SlingPlayer app.
Sling Moderation Support