I'm looking for some help, the following certificate will expire soon, so I need to know how can renew it or should I wait until it expires or can I delete it in a safe way?
Hi @Husain such certificate is not longer used on ISE for TLS handshake between the server and any of the services (for feed service, Posture / Profiler / BYOD updates, and licensing) .
Therefore, you can either let it expire or you can freely remove it. You can also check this Field notice, where this exact change has been documented:
