When i watch a SD ch on my 211 and switch to an HD ch. I get he error the sat. signal has been lost. and it try to acquire it on 61.5 and never does. I did a check switch everything ok finds all 3 sats 110/119/61.5 both of my 722 switch fine i also tried another port on my 2 dp34 switches. Still same issues any ideas ??