I had the same issue (Evolution was not able to sync any calender entry). After do some "killall -KILL evolution*" I could solve the issue.
I assume the problem could be related with "unavailable" owncloud server during start-up of (Gnome, Evolution, or what services ever). My owncloud is a test installation (Debian 64 Jessie) my Evolution is on Ubuntu 14.04 LTS (its Evolution 3.10.4). My owncloud server is not always available (especially not during startup of my Gnome system). Restarting Evolution after starting owncloud VM it seems working. Hopefully this helps others as well and maybe this could be fixed soon? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to evolution in Ubuntu. https://bugs.launchpad.net/bugs/1328381 Title: evolution "looses" write permission on remote authenticated caldav calendar intermittently Status in evolution package in Ubuntu: New Bug description: I have a series of CalDAV calendars on my owncloud install. I access them via Evolution and mostly it works well. However intermittently Evolution will loose the abilty to write to these calendars. Perhaps 1-2 times a week. Can't determine a pattern but all seems fine with the owncloud side as my mobile is able to still write at the same time as eveolution looses write access. Killing evolution, evolution-sourc, evolution-calen, evolution-alarm and then restarting evolution resolves the issue. Evolution: 3.10.4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/evolution/+bug/1328381/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp