Hi,
The stream stays there for not even a second. Notice the timestamps between reg and unreg the stream. That means that somehow you close the stream unintentionally. I saw this happening many times when the NetStream instance goes out of scope and is garbage collected on the flash client side. That is way too fast to be a problem on EMS. Besides, the RTMP connection is still up (IR(80)). Another connection is failing (IR(64)) and that ones fails because the distant part hung up (Error was (104): Connection reset by peer)
Best regards,
Andrei