Ok, I followed that procedure. Actually 2x.
I have IP address for both units but it will not recognize the main unit helix 9 from the back unit helix 5.
Also, the main unit is not finding the or showing the network tab. See pics

Main unit 9, has IP but not showing network tab

Name: IMG_9204.jpg Views: 543 Size: 28.1 KB

Name: IMG_9205.jpg Views: 533 Size: 30.4 KB

back unit 5, not finding the main unit

Name: IMG_9206.jpg Views: 536 Size: 24.7 KB

Name: IMG_9207.jpg Views: 555 Size: 26.3 KB

Name: IMG_9208.jpg Views: 515 Size: 22.7 KB

Thoughts?