Spektrum DX9 and Eflite Valiant disconnect ground testing

My brand new E-flite Valiant 1.3m lost connection 3 instances in 5 minute time period with the last time I couldn't recover so Horizon Hobby support asked me to do a ground test. This is the ground test after it crashed. The plane is in a close proximity of where I was and I tried to go to the areas of disconnect.
Items used in video:
Transmitter: Spektrum DX9 - SPMR9910
Airplane: E-flite Valiant 1.3m BNF - EFL4950
Battery: Pulse 2200mAh 25c 3S 11.1v w/ ec3 - PLU25-22003