ISE resintall and AD join

[REJR77]

Hello Community,

I plan to reinstall an ISE PSN from a 4 nodes deployment.

The PSN is currently joined to the AD domain.

What is the best practice regading the AD joining for the PSN node?

Should I first delete the PSN Computer account in the AD and recreate it when the PSN will be re-installed (join)?

Is it also a best practice to first Deregister the PSN from the deployment before reinstalling?

Thanks

[Rob Ingram · Accepted solution]

@REJR77 yes, definately de-register the PSN from the ISE cluster.

I've never had a problem by not deleting the computer account from the domain. I was then able to join an ISE node to the AD domain using the same object name as the old object.