After the secondary console has been promoted to be the primary console, uninstall Administration Console software of the old primary Administration Console. Before uninstalling, make sure the machine is disconnected from the network. For instructions, see Uninstalling Administration Console in the NetIQ Access Manager 5.0 Installation and Upgrade Guide.
If you want to use the old primary console as a secondary console, you need to first uninstall Administration Console software. Connect the machine to the network, then reinstall the software, designating this console as a secondary console.