Based on the log, the connection appears to close 9 seconds after the ACME order enters the finalizing stage, which suggests a network timeout or premature connection reset. It seems PBS keeps the connection open for several seconds while waiting...
We did a check on firewall logs and found no anomaly, no trace of dropped packets. I can confirm that the certificates were created but somehow the process stops before successfully retrieving the certificate.
I did try the same process on one...
Since a couple of days our PBS tries to renew its x509 cert. We configured it to use our ACME-PROVIDER with the same credentials we use everywhere else. Here is what happens. We get emails stating:
Proxmox Backup Server was not able to renew a...