Few devices listed as unavailable

Smart things has been in place for a while. For some reason a motion sensor, outlet, and door sensor are now listed as unavailable. I can not slam to get them back online. The outlet actually works, turns on and off as it should based on schedule but reports as unavailable. Both of the other devices are battery powered but show battery status of more than 50% so I assume they should be fine. The app shows the motion sensor as always reporting motion if that matters. I have rebooted the hub