The solution is u need turn on debugging on Network debugging / USB Debugging
How to enabled developer options in shield:
1. Open Settings> About > Build (tap 7 times)
2. Go back to Settings menu and now you'll be able to see 'Developer options' there (beside 'Accessibility')
3. Go to Debugging > and turn on Network debugging and/ USB Debugging from the menu on the next screen.
Enjoy guys.. Problem solved.
:fingers-crossed:
How to enabled developer options in shield:
1. Open Settings> About > Build (tap 7 times)
2. Go back to Settings menu and now you'll be able to see 'Developer options' there (beside 'Accessibility')
3. Go to Debugging > and turn on Network debugging and/ USB Debugging from the menu on the next screen.
Enjoy guys.. Problem solved.
:fingers-crossed: