Can you try providing the --jmxurl argument to the stop script? Is your broker really running a JMX listener on 10.50.39.76, port 1099?
The "Connection refused" error normally means there is no process listening on the port you're trying to connect. Alternatively you can stop the broker using a kill -TERM, it should shutdown the broker gracefully as well. Torsten Mielke tors...@fusesource.com tmie...@blogspot.com