Hello Francesco, I was struggling with same issue and it was due to custom startup script for activemq which declared variable ACTIVEMQ_OPTS. If this variable is previously declared - options from /apache-activemq-5.9.0/bin/activemq script are not loaded and hawio authentication is not working.
After you start activemq use ps and check that JVM is started with following options: -Djava.util.logging.config.file=logging.properties -Dhawtio.realm=activemq -Dhawtio.role=admins -Dhawtio.rolePrincipalClasses=org.apache.activemq.jaas.GroupPrincipal -Djava.security.auth.login.config=$ACTIVEMQ_CONF/login.config" Without these you wont be able to authenticate into hawio Michal -- View this message in context: http://activemq.2283324.n4.nabble.com/Endless-Failed-to-log-in-Forbidden-with-hawt-io-tp4673183p4673839.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.