Hi @DocTerry. This does sound like this is the case, since there is too much interference from your metal door. Are you able to mount the Doorbell onto a piece of wood that can go outside of your door, and it still work, or does it seem to still have a hard time connecting through the door? If so, you may want to look into getting wifi extender to see if this helps the connection become stable and function through the door. Feel free to share any DIY solutions you find! 