Begin by looking at the power and LED lights on your network switch. Make sure all cables are plugged in tight. Turn your switch off and then on to fix errors. This helps you find what is. not sure if this is a typo ? According to your configuration, the WAN interface is GigabitEthernet0/0/0. It is currently using the lan interface, the address that you need to use for the NAT is the WAN outside interface with the public IP - in this case gi0/0/0 The Router is set to use the wrong interface for the NAT overload. It is. Implementing a core switch in your network architecture offers numerous advantages: High Performance: Core switches are designed for italic high-speed data transfer, minimizing bottlenecks and ensuring optimal network performance. Cisco, Juniper, Arista, Fortinet, and more are welcome. I'm just an apprentice and I don't know what I've done wrong! We have a pair of Dell N3224P-ON switches and today's morning my colleague gave me a task and instructions to. Let's go through common network switch problems and how to troubleshoot or fix them, whether it's a physical connectivity issue, a configuration glitch, or more advanced concerns like network loops and security vulnerabilities. They manage data traffic between devices connected within a Local Area Network (LAN).