You must have them all correctly configured in a mobility group for your AP failover testing, and each controller must have the AP Failover feature enabled. You configure an AP with controller system names (not IPs), in the primary secondary, tertiary controller name fields on the AP. If using DHCP options, you can specify these when an AP gets an address in a
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.