RTMP Streaming w/FLVPlayback: not buffering?

Hey everyone

I’m trying to get an RTMP stream working for the first time. The videos in question will all be provided by Interoute, and they gave me some example links:

Normal RTMP URL
rtmp://fl.interoute.com/streamrt/{6ffab433-1c7d-4a4a-a9cc-472ebc88c47e}/{83fb8179-a145-4fbd-9f04-08acfd5c027e}/MBFG.flv

Flvplayback URL
rtmp://fl.interoute.com/streamrt/definst/{6ffab433-1c7d-4a4a-a9cc-472ebc88c47e}/{83fb8179-a145-4fbd-9f04-08acfd5c027e}/MBFG.flv

**Embedded Playback
**http://del.interoute.com/Default.aspx?id=6ff76e86-57ec-4fe9-9a4f-2d98796c360f&delivery=stream&Embedded=True

But with any of these, the clip seems to only play the first 1-3 seconds before stopping and jumping back to the beginning. In the ‘Embedded Playback’ link the only way to stop this behaviour is to turn the looping off (press the little green loop button).

However, I’m using the FLVPlayback component, so that’s not really an option for me. Is this something I’m missing in my code/parameters? Or is it a server issue?