DM 800, DISEQC , 2 LNB on motor

  • Hi! I have problem with such configuration: DM 800, Stab HH90 and diseqc 1х4. On motor i have 2 LNB Linear and Circular. Problem is I can't setup diseqc switching. Lnb switchin sometimes one to another, but not switching back.
    PLease, describe how I can setup this system right.