I have a multiboot system (all linux) and the computer has a wired connection. Ubuntu tells me I have no connection, but the other oses connect fine. Under network, ubuntu shows a wired connection, and at first it said the cable was unplugged but now it says the connection is not managed. On the panel it shows the wireless icon with no activity. When I look at settings on the upper right of the panel, edit connections is now gone. Don't know what happened; I installed it some time ago and I haven't touched anything to do with connections.