Here’s a couple of articles over the basics of DNS services
Lost internet/Speed up DNS queries
- Enter your home router as the first DNS and select a secondary DNS such as Google.
2. Open a command prompt as an administrator and type ipconfig /all to make sure your DNS servers are listed.
3. Perform a NSLookup of a website
4. Perform an NSLookup on a node in your network (computer name)
5. Display your DNS and register your DNS (below)