No SSL Certificates possible?

[trek102]

Hello All,

I am on DMS 6.2-23739

I am struggling to get any SSL certificates running inside Xpenology. 

When ever I try to add a certificate in Control Panel - Certificate- Get Certificate from Let's encrypt, I get this error message:

 

"No response from the destination server"

 

The ports are all open.

Has anyone seen this?

Any tips?

Many thanks