On the radio tab where it says controller signal strength, there is no values given which made me believe that it was a controller issue. We are trying to now flash both the controller and air unit and see if it is a firmware issue.
We are trying to follow the instructions given on [Solved] Herelink Firmware updated cannot link - #2
However, the link provided to download the latest firmware seems to be broken. Not sure where I can find the newest firmware to download.