How do I connect my Bricasti M21 DAC to my MAC Computer using the Network (Ethernet)

How do I connect my Bricasti M21 DAC to my MAC Computer using its Ethernet connection?   I want to run QoBuz on my MAC Computer and send the QoBuz output to the Bricasti M21 DAC using the Ethernet connection.  I will set the M21 using the IN5 LAN and Network setting.   This means the M21 connects to my network.  

Can I use the Qobuz interface and/or do I need some other software running on my MAC for this to happen?  This is a temporary setup so a large expense for any needed software is not required.  

If I need a software package on my MAC, what software package do you recommend?      

Your advice is requested.  Thanks.  
Another item to check: On the Audiovarana window bottom right corner is a speaker icon. Click on it and see if the Bricasti is recognized. If it is make sure it is selected.
@welcher, Thanks.  I click on the Audiovarana window right corner on the speaker icon.  The Bricasti M21 DAC does not show.  The only thing that shows is the local connected DAC.  Should I be clicking someplace else?

Maybe my MAC and the Bricasti DAC are not on the same network.  So, I ran the LAN scanner and did not see the Bricasti M21 DAC listed but am unclear what it would show.   Any suggestions?  

Audiovarana should automatically recognize my Bricasti M21 DAC and it does not.   Are there any other settings on my MAC or on Audiovarana that are blocking the Bricasti DAC?    

When you run the LAN scanner you should see a host name and ip address for the bricasti and your mac. Both devices need to be on the same subnet. Is your router the wireless router provided by your network provider (ie Comcast, Verizon, Cox etc)? Try turning off wireless on the MAC; reboot the MAC and see if you can reach the Bricasti and the internet
@welcher, Thanks.  I am using a Luxul XWR3100.   My MAC Computer is wired to my router and so is my Bricasti M21 DAC.   I have spent all day on this and cannot get it to work.  

Based on info received, it seems the Bricasti M21 DAC is not being recognized and you may be right they need to be on the same subnet.   I will work on that on Thursday.   

I have rebooted all devices several times and still l nothing.   
Thanks for your help but I give up.  I spent the entire Wednesday working on this and was NOT able to get my Bricasti M21 DAC to connect to my Internet.   Next, I LOST ALL Internet connectivity AFTER I reset my router (as was suggested by someone, AND a huge mistake).  My ISP helped me get that fixed.   Next, my iPad would NOT connect to the Internet. I finally fixed that and then discovered my Aurender N10 would not connect to the Internet.  I powered down my N10 (unplug from the wall) and it connected perfectly when it restarted (Thank goodness).   Of course, my furnace/AC thermostat LOST its Internet connection so I had to restore that. 

I wanted to connect my Bricasti DAC to Audirvana as an experiment to see how it sounds using an Ethernet connection.   I talked to several people (Thanks for your advice) on Audiogon (and many others) and followed their suggestions.  Nothing worked!!! 

Based on my understanding, my Aurender N10 connects PERFECTLY to the Internet BUT when I move the EXACT same Ethernet cable to my Bricasti M21 DAC, my network refuses to recognize it.  My best guess is the IP Address thinks the device is the N10 but it is actually the M21 DAC.   To be honest, I really do not know or understand.  One suggestion was reboot my Luxul XWR3100 router and modem before I connected the Bricasti.  This also did not work.   

My home network is very simple and not complicated.  I have 2 MAC computers (wired), one iPad (wi-fi) , 2 iPhones (wi-fi), an Aurender N10 (wired) and a furnace/AC thermostat (wi-fi) that connects to a LUXUL switch box to my LUXUL XWR3100 router to my Arris modem.

I am not willing to spend any more time on this.   I do not understand why this is happening.  It absolutely should work.    

Thanks again for all your help.

HOWEVER, if someone has a simple solution that does NOT impact my Internet connectivity, I might be willing to give it one more try.