network issues

I am new to linuxcnc and I cannot get my Raspberry pi running linuxcnc to connect to wifi or to my mesa 7I92TM board. I tried ip a but the mesa board is not showing have looked everywhere online and read multiple forums but can't seem to find a proper solution to my problem. Please help.

Goto the forum section of Installing Linuxcnc.
Click on the sticky for the RPi images.
Read the whole thread. The answers are there.
That's what the purpose of that particular thread is for.