Step 1: Open the adapter setting. Press Windows key + R to launch the Run window. Now type NCPA.CPL and press ENTER. Step 2: Click on the network adapter that you are using to connect to the router's network. Step 4: On the next window scroll down and look for the TCP/IPv4 and double-click on it. Step 5: Tick on the Use the Following DNS Server Addresses and type 8.8.8.8 for Preferred DNS Server and 8.8.4.4 for Alternate DNS Server. Step 6: Check the Validate Setting Upon Exit and hit OK to exit and so on. Step 7: Now try connecting again to the internet.