yes this is a bug in atv 6.1, the solution is not for the faint hearted, you need to edit a system file and comment a few lines of code.
you need to edit the file /etc/udhcpc.d/50default in notepad or something similar (not wordpad or word etc)
scroll to the end of the file and find the lines:
Code:
if [ -x /sbin/resolvconf ]; then
echo -n "$R" | /sbin/resolvconf -a "${interface}.udhcpc"
else
echo -n "$R" > "$RESOLV_CONF"
fi
and then comment them out by putting a # at the start of each line so you get
Code:
# if [ -x /sbin/resolvconf ]; then
# echo -n "$R" | /sbin/resolvconf -a "${interface}.udhcpc"
# else
# echo -n "$R" > "$RESOLV_CONF"
# fi
Now save the file and restart the box by holding the power button down until a menu appears and then select restart (not restart gui)