What am I doing wrong?

Easiest Mint Install:
forum.linuxcnc.org/9-installing-linuxcnc...aver-mint-iso#165631

What IP range are you using for your wireless & Ethernet (wired) connections.

I am using wifi. My ethernet port says device not managed.

GNU nano 2.7.4 File: /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback











[ Read 8 lines ]
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^X Exit ^R Read File ^\ Replace ^U Uncut Text^T To Spell ^_ Go To Line

If you want to use the ethernet exlusively for Mesa, foloow this tutorial:
linuxcnc.org/docs/html/man/man9/hm2_eth.9.html
If you need to change it , follow this:
forum.linuxcnc.org/27-driver-boards/3559...ethernet-mesa-boards
Recommanded to set the Mesa board to use the 10.10.10.10 address, and edit the IP address on the computer accordingly.

I am using wifi for internet. I am trying to use Ethernet strictly for the mesa card. I have followed those steps to the connection as well.