Here's how to check the certificate expiry for the Palo Alto User-ID Agent and the Terminal Server Agent
https://thedxt.ca/2024/10/palo-alto-user-id-and-terminal-server-agent-certificates/
Palo Alto User-ID and Terminal Server Agent Certificates
On November 18th, 2024, the certificates that the Palo Alto User-ID agent and the Palo Alto Terminal Server agent use to communicate with a Palo Alto firewall will expire, causing all communication to fail. Palo Alto Networks has made new versions of the User-ID and TS agents with updated certificates that will expire on January…