@takeshitakenji @moonman The only thing I can think of that's different from my own setups is daemons versus opprotunisticQM so maybe there's something that the daemons aren't doing right for STOMP?  Hard to say without a trace to know when that is happening, though I'll take a read through that part of the code.  

Is there anything in the RabbitMQ logs?  It could be that perhaps its connecting them but RabbitMQ is dropping or disconnecting them for some reason.  One thing I did notice when I tried Apollo instead of Artemis is I got a bunch of "Disconnected x.x.x.x: Nothing to process" errors.  Could be something similar.  If it's something like that I'd think RabbitMQ would have a similar sort of log entry about it.