Dwm1001 disappear on the phone

Hey everyone,
I’m a beginner with DWM1001 and need some help.
I got 12 DWM1001 and 4 are now working, 4 worked before. I can find only unassigned devices(new DWM1001). so i want know how can i find assigned devices.

Their LED: D20 Blink Fast RED
D13 Blink Slow RED
D9 Blink Slow GREEN

Hi Richard,

if you assigned the devices using DRTLS Android Manager then on the top left menu you can see all created networks. In each network you need at least one Initiator to start the network.