@klinux I’m indeed using udp ping cluster
It seems only the two instances on my node are discovered
even if I can see :
[org.jboss.as.domain.controller] (Host Controller Service Threads - 11) WFLYHC0019: Registered remote slave host “slave”, JBoss Keycloak 11.0.0 (WildFly 12.0.3.Final)