What I noticed in two cases (valid also for a bug#1560373) is that the notification area doesn't update its status. It shows the alarm clock icon or network icon with no connection only as long as we do not drop notification area down. Always when I pull it down, the network icon updates and false alarm clock disappears. Seems like a whole notification area falls asleep and takes its status from an unknown point in time.
What I noticed in two cases (valid also for a bug#1560373) is that the notification area doesn't update its status. It shows the alarm clock icon or network icon with no connection only as long as we do not drop notification area down. Always when I pull it down, the network icon updates and false alarm clock disappears. Seems like a whole notification area falls asleep and takes its status from an unknown point in time.