Upgrade maestro and 6400 to 3.1.8. Maestro cannot find the radio

Upgraded my Maestro and 6400 from 2.6 to 3.1.8 for the second time. I tried this several months ago and I had to go back to 2.6 for the maestro to find the radio.

Trying it again today. On the Maestro I updated to 3.1.8. screen showed both the Maestro and 6400 being upgraded. No radio available . Rebooted both the 6400 and Maestro. When the Mastro first comes on I can select my 6400. Hit Connect and select v3.1.8 and run. The meters and menu come up. Very briefly it shows a small scope but that quickly goes away. Then goes back to currently no radios available. Everything worked perfect under 2.49 and 2.6, but nothing under 3.1.8. I have tried rebooting everything many times with no improvement. 6400 does show solid green light. Back of 6400 Shows a green light when the LAN cable is plugged in. Maestro screen shows "The radio does not have an Internet connection...." press Test on the screen and get a green dot. Press info on Maestro screen and Serial # shows up, Max Licensed Version: v3, Radio id, Radio IP, Radio Internet: NONE, Radio firmware: v3.1.8.145.

Any help would be appreciated. Thank-you, Bob W0RJE