Sorry for asking a primitive question but I really would like to have some support or knowledge.
So far I could not find the information.
I would like to have a certification for HTTPS of a synology
I have followed all the steps mentioned in many website, such as
but I still get the message operation failed or
Connection failed to lets encrypted.
My domain is: groeneveldnagoya.net (provider Google Domain)
I have created dynamic DNS
Synology software: DSM 6.2-23739 Update 2
Port: 80 detectable (http://canyouseeme.org/)
No Firewall, VPN or Antivirus running
Static IP but I also changed to dynamic IP (both not having result)
Any idea how to solve would be welcome.