Creating a Let's Encrypt certificate

Problem Description
I have a domain we’ll call “” that has been applied to FreedomBox. When trying to obtain a Let’s Encrypt certificate, I get the following error:

  "identifier": {
    "type": "dns",
    "value": ""
  "status": "invalid",
  "expires": "2022-11-23T***Z",
  "challenges": [
      "type": "http-01",
      "status": "invalid",
      "error": {
        "type": "urn:ietf:params:acme:error:dns",
        "detail": "no valid A records found for; no valid AAAA records found for",
        "status": 400
      "url": "***",
      "token": "***",
      "validated": "2022-11-16T***Z"

I’m guessing this just means those records need to be configured, but are there any others? I’ve generated Let’s Encrypt certificates in the past w/out requiring this.


  • FreedomBox version: Latest Stable
  • Hardware: Raspberry Pi Model 4B
  • How did you install FreedomBox?: By flashing the official stable build.

This looks like an issue with IPv6. Try to disable it in the Networks menu and then renew the certificate.