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Troubleshooting Wireless and Wired Connections Part 1 In today's lesson we look at some common issues that occur with Wireless and Wired Connectivity. We examine connectivity failures that occur locally to the machine, what happens we connect internally to other machines but not externally, when nothing happens at all, and when network device or software failures occur. You'll learn about APIPA in terms of what is, what happens during IP addressing, and what happens when DHCP is off that can cause connectivity issues.