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You are here: Home / CompTIA / Network+ / Section II: Network Installation and Configuration / Chapter 12: Routers and Switches – Problems and Troubleshooting / Troubleshooting DNS Issues

Troubleshooting DNS Issues

If you are having problems communicating with your DNS server, you might think that the Internet connection is down because you don’t get a response when you try to access sites by name. One way to confirm this issue is trying to ping a public IP address. If that works but you cannot ping any domain names, it means that you have a DNS issue (i.e., translating domain names into IP addresses) and not a general communication problem.

If your applications are not working but you have Layer 3 connectivity within the network, this might also mean that . . .

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