Unable to make connection with 3dr radio

does anyone know a reason why a 3dr radio woulbe able to successfully connect in the 3dr setup/config
window but then when your in the flight data tab it doesn’t successfully connect?
solid light in both slave and master.

I have two 3dr tele radios. One is working consistently. the other is behaving as I mentioned above.

Try doing a factory reset of the non-functioning radio.

copter.ardupilot.com/wiki/common … ommand_set