If necessary, move users to a different CalPub Host.
For instructions, see Section 81.2, Assigning a Different Calendar Publishing Host to Users
In the GroupWise Admin console, click System > Calendar Publishing.
Select the CalPub Host to delete, then click Delete.
Click OK.
Restart Tomcat where the CalPub Host has been deleted.
For instructions, see Immediately Putting the Configuration Changes into Effect.
Restart the POA that used to communicate with the deleted CalPub Host, so that the POA does not try to reestablish the connection.