We have a Wowza streaming server 4.1.1 which we use to live stream (and record) video from Wowza go coder devices installed on iPhones. Until a couple of days ago everything worked fine. Suddenly, the live video stream constantly freezes on all clients (flash, iOS, android with RTSP). The recorded stream is fine - meaning the problem is not with the uploaded stream. Also, when playing the recorded file to the same clients it plays well. Only watching the live stream has this problem. I also tried watching the stream from the server (using VLC) and got the same problem - meaning it is not an Internet band width problem.