Melco dealers or owners

Need a little help please. Have not been able to get a definitive answer. I have a Melco NA1EX and want to use the Ethernet input in the Bricasti M3. I realize I still need the USB connected ( not sure why)   
Great thru USB but would like to try its with the EtherRegen in place thru the Ethernet. 
I have enabled file sharing and the Melco is in bridged mode. Not sure what I am missing here. 
any help would be awesome as always. 
The Melco is a great player. A big step up from the Aurender,Lumin’s,Cary and Auralic’s I have had.