We noticed that the default agaw-runner.sh file that ships with QM has an error that causes it to crash with the error "Login error for user ...."
In order to fix it, change the line that says:
REDRPC=$JARLIB/redstone-xmlrpc-1.0.jar
to:
REDRPC=$JARLIB/redstone-xmlrpc-1.1.1.jar
This should fix it.
We have upgraded the file in the next public release and added a check that prevents it from running if some required JARs are missing.