I have a dp twin 500 with port 1 going to my 612 *upgrading to a hopper duo soon* and port 2 going to tuner 2 on the reciever. Port 1 is tuner 1. Every time I check switch it says there's a problem and just shows an X and conn on 119. 110 is ok but only on tuner 1. There's no sats for some reason on tuner 2