Cannot add devices, suddenly

for the aeotec siren try ST channel invite and install edge driver for z-wave siren.

exclude that device and try to add it back + Add Device > by brand > z-wave

for aeon range extender… same channel invite as above
install Zigbee Plugin Motion Sensor

exclude that device and try to add it back + Add Device > by brand > z-wave

bring devices near the hub

if you need info on Edge Drivers and the Transition, you can start here:

FAQ: I have no idea what Edge is. Is that a new developer tool?

Platform Transition FAQ