Owncloud Client log

Server
1

Hello! Client version 2.2.4. It occurs when synchronizing files
Read error at byte 2965504/8459604 (error:1408F119:SSL routines:SSL3_GET_RECORD:decryption failed or bad record mac). Retrying.

Server configuration
Operating system: Ubuntu Server 15.10
Web server:Apache/2.4.12
Database:mariaDB 10.0.25
PHP version:PHP 5.6.11
ownCloud version (see ownCloud admin page): OwnCloud 8.2.7 (stable)

ownCloud log

Special configuration (external storage - nas, external authentication- ldap, reverse proxy - no, server-side-encryption-no):

2

Hi,

Ubuntu Server 15.10 reached end-of-life a few months ago. Please upgrade to 16.04 which might bring a new OpenSSL version fixing your issue:

3

I guess it is disabled by your admins/machine/distro/whatever..
http://disablessl3.com/