okay,i understand now

what receiver you using?
what lof value set in the receiver,that does not work?
when you use a signalsplitter cable,and switch off the power off your stb,that is connected with the diseqec motor,then it could happen,that the 2.connected receiver,gets no lnb signal,because,the lnb,get no power,during you swtich your receiver off,check also your swtich,or try another stb on the 2input,when you have a twin lnb,with separate cable,then this would be the best solution ,then you have no signal lost,when you have a direct connection one !