Installation of subsequent Primary Servers does not take into account the ports used by first Primary Server

First Primary Server uses ports other than 80 and 443

Installation of subsequent Primary Servers will use ports 80 and 443 if they are free, without prompting (this means that ZCC uses different ports for different servers)

This is fixed in version 10.2 - see KB 7003225 "ZENworks 10 Configuration Management with SP2 (10.2)" which can be found at https://www.novell.com/support

With this fix, installation of subsequent Primary servers will attempt to use the same ports as the first Primary server. If those ports are in use, the installation will prompt for alternates.