DAVdroid 1.11.1 + nextCloud 13.0.2 + nginx: SSLHandshakeException

[greenfairy]

hello I am newbie and french,
I use DAVdroid 1.11.1 + nextCloud 13.0.2 the sync works with the Android applications nextcloud but with DAVdroid it does not work.
my nginx config:

location = /.well-known/carddav {
      return 301 $scheme://$host/remote.php/dav;
    }
    location = /.well-known/caldav {
      return 301 $scheme://$host/remote.php/dav;
    }

DAVdroid config :

https://<nextcloud-url>/remote.php/dav/
username of nextCloud
password of nextCloud

DAVdroid log :
0_1525884553649_DAVdroid 1.11.1-ose debug info.txt

when I consult the url:
 https://mon.domaine.fr/remote.php/dav/

in my browser I have this error:
This is the WebDAV interface. It can only be accessed by WebDAV clients such as the Nextcloud desktop sync client.

Do you have any solutions ?
Thank you for your answers

[rfc2822]

Hello,

This message:

EXCEPTION javax.net.ssl.SSLHandshakeException: Handshake failed
at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:429)

indicates a TLS problem, probably caused by incompatible protocols/ciphers between your server and your Android device. Please have a look at https://www.davdroid.com/manual/security/#c200.

On https://developer.android.com/reference/javax/net/ssl/SSLEngine.html, you can find a list of all ciphers which are supported by Android 7.

Does it work when you make sure that your server allows ciphers which are supported by Android 7?

[greenfairy]

I am newbie so I am inevitably lost in relation to your answer.
how can this be a protocol problem related to android 7 if i use a nextcloud application on android 7 which it works properly.

I naively thought it was a nginx tweak to made.
I’m afraid that my skills will not allow me to solve this problem.