I am having some issue with 2 of my controllers
only 1 is pingable out of 3.
I can ping the controllers from anywhere else but the esxi host.
any idea?
I migrated them to the same host and same port group
is there a proper way to remve controllers and redeploy them?
Go to the GUI, right click and "Force Remove". Follow the same process as you did before to re-install them.
vMotion of controllers is not supported. You will see un-expected issues, if you do so.
I am not able to remove it
If you right click on the Controller, you will see the option "Force Remove". Did you try that?