WiFiDirect example can't discovery my android WifiDirect #1420

Which sample are you reporting a bug in?

Example: WifiDirect

Describe the bug
I want to connect HoloLens2 and Android pad by WiFiDirect, Android Pad create a group, and HoloLens2 discovery and connect to the
Pad, but sometime succeed, sometime HoloLens2 can't discovery the pad , only restart the hololens2 device ,can discovery again.

To Reproduce
Steps to reproduce the behavior:

1. repeat to connect. discovery
2. after sveral times. will not disovery the pad

Expected behavior
still discovery the pad

Screenshots
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Configuration

• Language/architecture/flavor: (example: C++/WinRT x64 Debug)
  Hololens2
  Android Pad

Additional context
Add any other context about the problem here.