i’m facing the same issue as you. were you able to find a resolution? i tried suggested setup in https://github.com/corda/cordapp-template#running-the-nodes-across-multiple-machines but to no avail.
I also get a warning
[quasar] WARNING: Duplicate class entries with different data for class: org/apache/activemq/artemis/core/remoting/impl/netty/NettyConnector
What hostname have you define in p2pAddress?