In order to connect your C1/C2 Wi-Fi security camera to a new router you should first do a hard reset of the device by inserting the end of a safety clip into the hole in the back of the camera and holding it for approximately 10 seconds until there is an audible sound. Then follow the steps in the app to add a new C1/C2 device.
Do not delete the camera nor the location from your app as this will cause you to lose your settings and video clips.
If you have invited other users to access your devices via the Resideo app, they will all need to delete the device from their app before you re-register the device to the new router.