Not able to reissue SSL from plesk panel for ASP.NET websites (Windows Server)

Dear Concern,

Getting error at the time of SSL installation tried no of various steps yet not resolved can you please help me in that

Error: Could not issue a Let’s Encrypt SSL/TLS certificate for

The authorization token is not available at
To resolve the issue, make sure that the token file can be downloaded via the above URL.
See the related Knowledge Base article for details.
Invalid response from
Type: urn:ietf:params:acme:error:unauthorized
Status: 403
Detail: Invalid response from []: “\r\n<html class=“html-not-found-page”>\r\n\r\n Toshiba. Page not found\r\n <meta http-equiv=”"

Thanks & Regards,
Rushi K

Hi @Rushik7

checking your domain via you have a

Server: Microsoft-IIS/8.5
X-Powered-By-Plesk: PleskWin

Plesk Windows and a redirect http + /.well-known/acme-challenge/random-filename to https.

There follows a page of your CMS.

And the certificate is old:
132 days expired - 1 entry

There is only one single Letsencrypt certificate.

Do you use Plesk to create the certificate?

Minimal step: Remove the redirect if the folder starts with /.well-known/acme-challenge to see, if that helps.


Hello @JuergenAuer, thanks for the quick response, I have used plesk for the certificates.

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