What fixed it for me was in "tomboy preferences" -> "Synchronization" changing the server from https://one.ubuntu.com/notes/ to https://edge.one.ubuntu.com/notes/
I think this is a duplicate of: https://bugs.launchpad.net/ubuntu/+source/tomboy/+bug/842278 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/845321 Title: Unable to setup Ubuntu One sync with Tomboy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntuone-servers/+bug/845321/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs