Um No.
Hoppers don't use Separators.
To the OP
This is the correct wiring below.
But you could have a bad, Cable, Bad Solo node, bad LNB ,bad Hopper.
Did you make sure you are not connected to the LNB IN on your LNB.
How about trying a different port on your LNB.
And don't do this with your hopper powered up.