Cannot download certificate from staging environment


I am migrating from AcmeSharp to AcmeSharpCore to support AcmeV2 in an application I am developing and I am getting a “method not found” when downloading the certificate. As far as I can tell I am not missing any steps when asking for a new certificate. I am doing this:

  • Creating a new order
  • Creating DNS entry with the TXT value specified for the challenge
  • “Answering” the challenge
  • Finalizing the order
    • Waiting for the order’s payload certificate to be present
  • Downloading the order’s payload certificate
    • This raises the “method not found” error when downloading the certificate

I searched on Google to see if someone had a similar issue without success.

You will find more details below.
Any help is appreciated.

My domain is: and I am not using CAA records
I am generating a wildcard certificate for *
Url for the certificate:

click to show the response when I finalized the order


click to show the response when I attempted to download the certificate

“type”: “urn:ietf:params:acme:error:malformed”,
“detail”: “Method not allowed”,
“status”: 405

1 Like

Hi @orckadrouin

you have to use a POST command to download the certificate.


Hi @JuergenAuer,

Changing from a GET to a POST (with the required headers) solved my issue.



This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.