I'm using android 4.4.2 / imx6 and I'm booting it from nfs. my default gateway is properly set from the kernel command line. I can ping the google dns server 184.108.40.206 but setting net.dns1 (setprop net.dns1 220.127.116.11) does not help. Dns resolution does not work. If I unplug the ethernet cable and replug it, then the dns work. what 's the issue?