I just installed an SWM 3 (single coax connection) with an HR 24 receiver. Set up confirms the SWM 3 selection. I have the SWM power inserter connected. Signal strength at sat 101 is 95%. The error I get is SWM. Not detected. The SWM field is selected in set up. I know the cable is good as the signal is at 95%. This is an additional set up at a different location than my primary. What am I missing.