SSL Certificate from let's Encrypt not trusted

[Spheerys]

Hi,

I switched from a self-signed certificate accepted by CAdroid, to a new Let’s Encrypt certificate, with OwnCloud (I also removed CAdroid)
My server is well configured (my ownCloud instance has been rated A on http://ssllabs.com), but when I try to connect to my caldav or carddav URL, I have this error : “Untrusted certificate in certificate path. See FAQ for more info”
But I didn’t find anything on the FAQ about my problem.

Versions :

• Android 4.4.4
• ownCloud 8.2.2
• DAVdroid 0.8.4

Any idea ?

[rfc2822]

What’s your domain / host name?

[Spheerys]

Oh sorry, I only have a B on this server.
Probably the issue is coming form the chain issue.
My host is : cloud.spheerys.net
The SSL test is : https://www.ssllabs.com/ssltest/analyze.html?d=cloud.spheerys.net

My nginx SSL conf is :

        ssl on
        ssl_certificate /etc/letsencrypt/live/cloud.spheerys.net/cert.pem;
        ssl_certificate_key /etc/letsencrypt/live/cloud.spheerys.net/privkey.pem;
        ssl_trusted_certificate /etc/letsencrypt/live/cloud.spheerys.net/chain.pem;
        ssl_client_certificate /etc/letsencrypt/archive/cloud.spheerys.net/lets-encrypt-x1-cross-signed.pem;

I’m looking forward and I come back.

[Spheerys]

OK now my problem is different. I will open another topic.