Hi all! I have a 3rd node debian 9 stretch in a multi server setup. the master and the first node are debian 8 and working perfectly apache letsencrypt on both! On the node 3. The sub.domain.com is working. I can enable ssl and letsencrypt on the web tab. In the log the certificate are created. 19.02.2018-16:18 - DEBUG - Let's Encrypt SSL Cert domains: --domains sub.domain.com 19.02.2018-16:18 - DEBUG - exec: /usr/bin/letsencrypt certonly -n --text --agree-tos --expand --authenticator webroot --server https://acme-v01.api.letsencrypt.org/directory --rsa-key-size 4096 --email [email protected] --domains sub.domain.com --webroot-path /usr/local/ispconfig/interface/acme 19.02.2018-16:18 - DEBUG - Let's Encrypt Cert config path is: /etc/letsencrypt/renewal/sub.domain.com.conf. 19.02.2018-16:18 - DEBUG - Let's Encrypt Cert file: /etc/letsencrypt/live/sub.domain.com/fullchain.pem exists. 19.02.2018-16:18 - DEBUG - Enable SSL for: sub.domain.com 19.02.2018-16:18 - DEBUG - Writing the vhost file: /etc/apache2/sites-available/sub.domain.com.vhost 19.02.2018-16:18 - DEBUG - Apache status is: running 19.02.2018-16:18 - DEBUG - Calling function 'restartHttpd' from module 'web_module'. 19.02.2018-16:18 - DEBUG - Restarting httpd: systemctl restart apache2.service 19.02.2018-16:18 - DEBUG - Apache restart return value is: 0 19.02.2018-16:18 - DEBUG - Apache online status after restart is: running The http://sub.domain.com site is working!!! The https://sub.domain.com web site IS NOT WORKING !!! The browser just times out on https! Tried restarting apache and rebooting with same results! And the vhost file has all the *.80 and *.443 section!!! Everything look ok! There is no log in the access.log and error.log file of the site!!! I 'm lost here. Anybody has an idea? Thanks Spazio