странное поведение при обновлении дистрибутива xubuntu 14.04 -> 16

~$ sudo  update-manager -d
Проверка наличия нового релиза Ubuntu
[PIPELIGHT:LIN:unknown] attached to process.
[PIPELIGHT:LIN:unknown] checking environment variable PIPELIGHT_SILVERLIGHT5_1_CONFIG.
[PIPELIGHT:LIN:unknown] searching for config file pipelight-silverlight5.1.
[PIPELIGHT:LIN:unknown] trying to load config file from '/root/.config/pipelight-silverlight5.1'.
[PIPELIGHT:LIN:unknown] trying to load config file from '/etc/pipelight-silverlight5.1'.
[PIPELIGHT:LIN:unknown] trying to load config file from '/usr/share/pipelight/pipelight-silverlight5.1'.
[PIPELIGHT:LIN:silverlight5.1] sandbox not found / not installed!
[PIPELIGHT:LIN:silverlight5.1] GPU driver check - Your driver is supported, hardware acceleration enabled.
[PIPELIGHT:LIN:silverlight5.1] using wine prefix directory /root/.wine-pipelight/.
[PIPELIGHT:LIN:silverlight5.1] checking plugin installation - this might take some time.
[install-dependency] wine-silverlight5.1-installer is already installed in '/root/.wine-pipelight/'.
[install-dependency] wine-mpg2splt-installer is already installed in '/root/.wine-pipelight/'.
[install-dependency] Downloading and running wine-wininet-installer.
[install-dependency] ERROR: Downloading failed multiple times - please check your internet connection.
[install-dependency] ERROR: Download of wine-wininet-installer failed.
[PIPELIGHT:LIN:silverlight5.1] basicplugin.c:383:checkPluginInstallation(): Plugin installer did not run correctly (exitcode = 1).
[PIPELIGHT:LIN:silverlight5.1] basicplugin.c:142:attach(): plugin not correctly installed - aborting.
[PIPELIGHT:LIN:silverlight5.1] using thread asynccall event handling.
java version "1.7.0_101"
OpenJDK Runtime Environment (IcedTea 2.6.6) (7u101-2.6.6-0ubuntu0.14.04.1)
OpenJDK 64-Bit Server VM (build 24.95-b01, mixed mode)