Kaltura's Live Video Streaming (HLS) restarts after some time on iOS

i m using Kaltura’s Live Streaming on iOS, i m able to show Live Video Streaming broadcast over Kaltura for which i m using Adobe Flash Media Live Encoder 3.2 but at some time later (5-7 min) it restarts from any point. It randomly goes any point from which it has recorded the video, and plays the video from that time, and again after some time (20-30 min) it shows the live-video streaming.

The settings i m using in Adobe Flash Media Live Encoder 3.2 are shown in screenshot shown on StackOverflow’s question. Is there any issue in settings ?

http://i.stack.imgur.com/af5xn.png

The same behavior happens on Safari.