Hey neighbors. The MAC address for your Ring devices should not be changing like this. If your Camera is consistently falling offline or if you have a DHCP reservation, then you may need to utilize wifi or change your router security settings to allow the new MAC address via ethernet for the time being. In order to take a further look into this, can you please reach out to our support team at one of the numbers available here. If you are outside of the US, please visit here to see how to contact support.