If you are having supervision issues with many or all sensors and they should otherwise work, there are a few likely issues:
- Sensors are all older and need new batteries.
- Range/attenuation is a problem
- Or the white thin sensor antenna on the panel is not routed out of the panel properly, is pinched in the back-plate, or otherwise damaged.
If you have already tried new batteries, pop open the IQ Panel 2+ and take a look at the antenna.
If the panel is wall mounted, that thin white antenna must be routed out the back of the panel into the wall. If it is resting on a surface the antenna should be coming out the back.
There is a hole in the back plate right next to the antenna where it should be going out.