*Software Versions* Java Broker 6.1.1 qpid-jms-client 0.20.0
*When my Authentication Provider assigned to my AMQP port is PlainPasswordFile then i am able to connect just fine:* *RemoteURI *amqp://<hostname>:5672?amqp.vhost=default [AmqpProvider:(1):[amqp://<hostname>:5672]] INFO org.apache.qpid.jms.sasl.SaslMechanismFinder - Best match for SASL auth was: SASL-SCRAM-SHA-256 [AmqpProvider:(1):[amqp://<hostname>:5672]] INFO org.apache.qpid.jms.JmsConnection - Connection ID:d03c3e30-63af-42bd-959b-a673c6da798f:1 connected to remote Broker: amqp://<hostname>:5672 Message sent: {"key1":"value1"} *However when my Authentication Provider assigned to my AMQP port is set to Base64MD5PasswordFile or SCRAM-SHA-256 i get this error on the client:* *RemoteURI *amqp://<hostname>:5672?amqp.vhost=default [AmqpProvider:(1):[amqp://<hostname>:5672]] INFO org.apache.qpid.jms.sasl.SaslMechanismFinder - Best match for SASL auth was: null [main] ERROR org.apache.qpid.jms.JmsConnection - Failed to connect to remote at: amqp://<hostname>:5672?amqp.vhost=default javax.jms.JMSSecurityException: Could not find a suitable SASL mechanism for the remote peer using the available credentials. at org.apache.qpid.jms.provider.amqp.AmqpSaslAuthenticator.handleSaslInit(AmqpSaslAuthenticator.java:145) at org.apache.qpid.jms.provider.amqp.AmqpSaslAuthenticator.authenticate(AmqpSaslAuthenticator.java:92) at org.apache.qpid.jms.provider.amqp.AmqpProvider.processSaslAuthentication(AmqpProvider.java:925) at org.apache.qpid.jms.provider.amqp.AmqpProvider.processUpdates(AmqpProvider.java:909) at org.apache.qpid.jms.provider.amqp.AmqpProvider.access$1800(AmqpProvider.java:93) at org.apache.qpid.jms.provider.amqp.AmqpProvider$18.run(AmqpProvider.java:784) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) I presume there is some sort of config i am missing. Does this ring a bell? Is there a direction i could be pointed in? maybe it has to do with the URL pattern my client is using in the connection factory? or maybe i just completely misunderstand how i should be configuring SASL mechanisms. thank you