What am I doing wrong? Says the SSL is expired, but it's not

[ffeingold-clmke]

I'm using about the simplest version of the check:

./check_ssl_cert -H ##.##.##

And the check comes back with:

SSL_CERT CRITICAL ##.##.##:443: x509 certificate element 1 (##.##.##) is expired (was valid until Jul 12 17:08:12 2026 GMT, -74 days ago)|days_chain_elem1=74;20;15;; days_chain_elem2=317;20;15;;

How can it be expired if it's valid until July 12, 2026 (today is April 29, 2026)

I'm sure I'm doing something wrong, but I'm just not seeing it.

[matteocorti]

It's impossible to say without any detail. Either you post the hostname you are testing or the debugging log (with --debug)