MESA 7i95 Board Setup

Having read everything here, i would venture a guess at your network not being set correctly, despite you insisting on ping working.
It is working as you are pinging your PC, having set the same IP address as the Mesa board.
So,
set the PC network to anything but 10.10.10.10
10.10.10.2
up to
10.10.10.254
will work, just skip 10 at the end.
Check with
ip a
to make sure the IP is set, then ping 10.10.10.10 and check reply times, they should be something like 0.1 to 0.3 ms.

TDudley wrote:

1) LinuxCNC with IP address of 10.10.10.10

Delete that one completely.