Can't set static IP for WiFi correctly in Android device
It would be best to choose your static IP address from the main gateway. In this case 10.2.19.27 . So IP address is anything from 10.2.19.xx where xx is any number from 1 to 255 (depends on network prefix) apart from 27.

It is also okay to put the gateway address as the first DNS entry and as for the second either put a public DNS like Google DNS e.g 8.8.4.4 or Open DNS like configured in your settings 4.2.2.2

After that ping and see if the address is reachable