Ubuntu 18.04.2 LTS (Bionic Beaver)) ISPConfig 3.1.14p2 Nextcloud 16.0.4 Everything ran fine until I updated ISPConfig and Nextcloud. Now, on Android, CalDav-Sync error is: "Could not connect to Server!" javax.net.ssl.SSLHandshakeException: SSL handshake aborted: ssl=0x45c1520: I/O error during system call, Connection reset by peer On OSX with BusyCal 3.6.2 and BusyContacts the error is simply :"The request timed out" with OSX Calender I am getting "Unable to verify account name or password" Port 443 is open, I can open "https://cloud.server.com/remote.php/dav/principals/users/admin/ and see "This is the WebDAV interface. It can only be accessed by WebDAV clients such as the Nextcloud desktop sync client." I reinstalled nextcloud and the problem persists. During the ISPConfig update, i chose to "Create new ISPConfig SSL certificate". Due to the above "SSL handshake aborted" - error, I assume it is a certificate problem? This is a big problem for me, neither calendar nor contacts are working. Any help greatly appreciated. Thanks.
