I am in a similar situation. Suddenly on Friday 11 July, the application and all web browsers became nearly unwatchable with lots of stuttering and quality which changed constantly. I used to get perfect HD with rare bandwidth problems, then one day, it's all gone downhill. I have a fiber connection at my home (Germany) and the slingbox itself (south Florida) has a good upload link, point being that the links have plenty of capacity and nothing changed on either end. I too have a little more success on the iPad, but even that is not perfect. I have tested from other locations outside my house and it's the same. Very interested if anyone else experienced the same drop-off in bandwidth all of a sudden and if there is an explanation. My best guess is some routing configuration changed on the ISP side which now takes a longer path to get me to south Florida.