The DGEs need to know the IP address of the Provisioning Database to download their configuration. Furthermore, the JMS Messaging server also runs on this host and so its address must be updated on the DGEs.
On all the DGEs, edit <TRAVERSE_HOME>\etc\emerald.xml file and update the following section:
<provisioning name="provisioning"
host="n.n.n.n"
[...]
as well as the JMS section:
<jms
host="n.n.n.n"
[...]
On the host running the Provisioning Database, edit <TRAVERSE_HOME>\etc\openjms-mysql.xml and update the following section:
<ServerConfiguration host="n.n.n.n" embeddedJNDI="true" />
Then restart the Traverse components on all the servers.