[DisasterRadio] Why this not working

I'm not know english. I use translators. I buy 2 device and flashed its. When I connect (trought wifi) to one device. I dont see message in other device near first device. 1. login to 192.168.4.1 2. setup name 3. send text 4. nothing happened in second device. on second device i see 0.0.0.0 and 0 hops.