1. Remove all cameras from menu option 2. Reset all units by unplugging from outlet source and remove battery from parent unit 3. Wait a few minutes 4. plug everything back in and turn on 5. Add camera in menu option. Parent unit will begin to search 6. While parent unit is searching press pairing button on bottom of baby unit top right corner (small skinny screwdriver or pencil is needed) This worked for me and paired the camera unit in less than a minute and now is working again