If you are using multiple servers copy the resulting key file from <quickstart>/wildfly-10.1.0.Final/standalone/data/bedework/ on to each server.
The bwengine/synch settings are configured to use a jvm system property to locate the synch engine. In file <quickstart>/wildfly-10.1.0.Final/standalone/confgiuration/bedework/bwengine/synch.xml you should see:
<?xml version="1.0" encoding="UTF-8" ?> <synch xmlns="http://bedework.org/ns/" type="org.bedework.calsvc.jmx.SynchConfigImpl"> <connectorId>localBedework</connectorId> <managerUri>http://localhost:8080/synch/manager</managerUri> <wsdlUri>http://localhost:8080/wsdls/synch/wssvc.wsdl</wsdlUri> </synch>
If you are using multiple servers change the host in <managerUri> to refer to your sync server.