Communicaton to hue not working anymore most of the time


I am using OpenHAB to also control my Hue lights. After having been out for some days the control does not work anymore most of the time. The lights simply do not switch anymore while it is still possible to directly control the lights via the Hue app or via Amazon Echo.

The log is poluted with messages like below. Looks like it keeps identifying another Hue Bridge and deleting it again. Can this be somewhat related? I only have one active Hue bridge.

2018-06-03 11:50:38.679 [home.event.InboxAddedEvent] - Discovery Result with UID ‘hue:bridge:xxx’ has been added.

==> /var/log/openhab2/openhab.log <==

2018-06-03 11:50:38.684 [INFO ] [g.discovery.internal.PersistentInbox] - Added new thing ‘hue:bridge:xxx’ to inbox.

2018-06-03 11:52:19.861 [me.event.InboxRemovedEvent] - Discovery Result with UID ‘hue:bridge:xxx’ has been removed.

I also see messages of the type: “Command sent to unknown channel ID” while in fact the channel ID is correct, it is only sporadically (most of the time) not working.

Thanks a lot, BR, Torsten