Outlook Addin not connecting

i’ve set up an owncloud server in my network and now i want to add the outlook addin to my outlook. When i start outlook, the login window appears, but after i entered the bare ip adress its not loading and with ‘http://ipadress’ it says ‘settings not correct’ …

maybe you wanna try it with https://your.domain.tld ?

I’m fairly sure I have the credentials correct.

I have tried everything and can’t connect.

In the debug log this is the reason:
The request was aborted: Could not create SSL/TLS secure channel.

I thought I had read this TLS issue was resolved. I guess not.

Does anyone know a workaround?

Anyone found solution to this problem? I also have problems with connecting. When I give credentials, the system asks if I allow the access and after all is set the following dialog box appears:

What could be the reason?

Hi, Any chance you are using a self signed certificate?

Thank you for reply. What you mean by self-signed certificate? I believe it’s let’s encrypt for the moment if ssl is what you ask about.