Hi @Carl thanks for the input. I do not believe I am using any MAC Filtering, but maybe the xfinity router is? The Xfinity support said they are not doing anything like this, but I am not sure I...

Setup: - TPLINK RE580D is connected via 2.4+5GHz bands to Xfinity router. - Three devices (desktop, playstation4, raspberry pi) are connected to the extender via ethernet. - All other devices on the...