Just i came across a problem in which am connected with my asus vivobook r542u and doing network surfing. Suddenly google youtube all stoped working whereas the ping responds but nslookup shows unknown server 8.8.8.8. am using netis router by seeing related threads i just switched off my router for 30 seconds and then turn it on and boom all started working again. But my quistion is when google stoped working but aliexpress and bangood is working properly