Hi, I'm a newby here and would appreciate any help and support. I have set up a new Wireless Repeater, was able to add a RA2 In Wall Dimmer without any problem and can use the Lutron App to control this dimmer. I went to add a RA2 Plug-in Dimmer (RR-3PD-1) but I can't get it to see the repeater. I can't add it to the app. I have held down the button for 10 seconds on the plug in dimmer to set it up but no response. I have also done a factory reset on the dimmer but it's not working. I am clearly doing something wrong. I have tried this same process with two different dimmers in two rooms. Thank you in advance for any and all thoughts and help! Greg