- Plesk Onyx
1. The following error occurs on an attempt to install Let's Encrypt certificate on a domain:
PLESK_ERROR: Error: Let's Encrypt SSL certificate installation failed: Challenge marked as invalid. Details: Could not connect to example.com
2. No misconfiguration according to the following article:
3. Ubmraco CMS is used on the domain.
4. The following line is presented in web.config file:
<add key="umbracoReservedPaths" value="~/umbraco,~/install/" />
Umbraco CMS specific, all requests are handled on CMS side.
In order to give Umbraco a possibility to ignore Let's Encrypt queries, connect to the server
and adjust the following line in
for more info):
<add key="umbracoReservedPaths" value="~/umbraco,~/install/ ,~/.well-known" />