what are the Specs on it, if it is under 3amps output it doesn't have enough power for your setup
Do you have a spare one you can try, that way you will know if it's the Power adapter or not.
Also how long are your cable runs ? longer cable runs Draw more power, Most of the issues with the FTA Receivers
these days, with all this power hungry Equipment are power issues, The receiver can't supply enough power to
all the stuff you are using.