Cannot install Let's encrypt certificate: Failed letsencrypt execution: Failed authorization procedure

Created:

2016-11-16 13:13:50 UTC

Modified:

2017-08-08 13:13:30 UTC

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Cannot install Let's encrypt certificate: Failed letsencrypt execution: Failed authorization procedure

Applicable to:

  • Plesk Onyx for Windows
  • Plesk 12.5 for Windows

Symptoms

Error installing Let's encrypt certificate for a domain:

Error: Let's Encrypt SSL certificate installation failed: Failed letsencrypt execution: Failed authorization procedure.     example.com (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from    http://example.com/.well-known/acme-challenge/FpudeTlHgkrlU34as62taMhVLxMY0HwmyCJyeQj0lZk [ 203.0.113.2]: 500,  www.example.com (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response     from http://www.example.com/.well-known/acme-challenge/MIm7vDr3buWubgbk1H4ITkDxsmggaPwW2sXEycbCSog [ 203.0.113.2]: 500

Cause

Invalid Mime type is specified in IIS Manager > MIME type : file extension "."

Resolution

Delete file extension "." from IIS Manager > MIME type .

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