Smart Update of WordPress Toolkit in Plesk fails:
Smart Update could not connect to the website to fetch the sitemap. Connection timed out.
It's not possible to load the website locally:
# curl https://www.example.com
curl: (7) Failed to connect to www.example.com port 443: Connection timed out
Plesk is behind the NAT
A routing issue in the private network.
- Contact the network administrator to address it.