Create an external identity store via active directory
Adding ISE to active directory is similar to adding a computer to the AD domain. The ISE node will show up in AD as a computer.
If the wrong username, credentials or any information is incorrect ISE will generate a log:
Once the correct user credentials are correct ISE will be added to the AD domain
verify that ISE is showing up as a computer in AD
AD groups can be imported from ISE to be used in authentication policies