I have not tried to remove and add. The one that is not meshed is the number 7 (GR-Ventialtion-ZB) which should mesh with no.12 or no.3 as it was before.
Also the no 2 was meshed with no 7 before. The sensor is 2months old so the battery in this one should be just fine.
I´ll try to readd the device again.
In my case i just want to know what is the error i get when the device is not answering…
Can the homey logger app be of use here?
I also noticed that a test temp.sensor i have works just fine when near homey but not if it needs to mesh or find a route thorugh a router.