Trouble with LAN setup on new PC install (Wheezy 7 / LCNC 2.7.14 )

Does anyone have any good guide to get the LAN setup on a new Wheezy 7 install? 
I am getting my butt kicked on this one.  I actually had a Dell Optiplex 9020 that I was able to install everything on.  With the newer LAN setup on this one I see the "LO' in the network setup, but no " enp0s3 "  the old setup showed " eth0 " for the ethernet connection.  So it seems as it is not seeing the network connection or LAN port. 

when I use the command cat /etc/network/interfaces

I only get back the

auto lo
iface lo inet loopback

no primary network interface.  I can not seem to figure out where to get this setup. 

Any pointers ? 

Thanks !

Its possible Wheezy is too old to support the Ethernet hardware on a newer PC

Well that would not be cool. I can download the latest and greatest. I can see the Ethernet controller from lspci -v

The machine is 10 ish years old.....I went from the 15-16 year old machine to this one.

I am using Pico PPMC ( which I'm battling parallel port on the other thread...) This install is beating me.

IP a only shows LO, no additional Ethernet

I dumped wheezy and installed buster. It fixed it self once I got past the CD-ROM work around. Network connection is happy. I don't know. Thanks everyone!