It was working ok - so not sure if an update broke it, or something else?
FWIW: I needed to get this domain back up ASAP (as it was showing a security alert to people). So disabling SSL, then re-enabling it seems to have worked. Still confused as to why it didn’t auto renew like it always has in the past. Any suggestions would be appreciated
However, would the LETSENCRYPT_FAIL_COUNT have reset itself when removing SSL, and the re-enabling it? You may be onto something. We moved this site over from a Vesta server, and this domain wasn’t updated for the DNS - so I guess attempts would have failed as it would have kept trying.
I think we can probably close this. I’ll keep an eye on it and see if it happens again. Normally they renew just fine, which is why it was so odd.