No connection between Nextcloud & Davdroid

  • Setup: NC 11.0.2 / DavDroid 1.4.1
    CardDav on iOS is working / Android with DavDroid not ...


    Maybe someone can help me.
    Thanks a lot

  • developer

    	Caused by: SSL handshake terminated: ssl=0x7430a21800: Failure in SSL library, usually a protocol error
    error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE (external/boringssl/src/ssl/s3_pkt.c:641 0x744c571d80:0x00000001)
    error:1000009a:SSL routines:OPENSSL_internal:HANDSHAKE_FAILURE_ON_CLIENT_HELLO (external/boringssl/src/ssl/s3_clnt.c:800 0x744c7702db:0x00000000)
    		at Method)
    		... 36 more

    There's a TLS problem. Did you make sure your server TLS settings are correct and compatible with your Android version?

  • Hi rfc2822

    I'm using NGINX 1.10.11.
    Here is my ssl-setup. I know it seems not to be an DavDroid-Problem, but I would appreciate if you or another one have a hint to solve this problem.

    Thank you

  • developer

    Does it work with default TLS settings?

  • I'm not so experienced, but this setup works on iOS. If you have an line to edit I can test it ...

  • @rfc2822 Just an update ... Testing with an "Android 6 Device" it's working, and testing with "CardDav Sync free" it's also working ... so it should be the issue with DavDroid & Android 7 - acutally I'm using the latest Version of DavDroid (
    Thank you for your support.

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