This comprehensive guide will walk you through a logical, layered approach to diagnosing and fixing common switch problems, helping you restore connectivity and performance efficiently. Begin by looking at the power and LED lights on your network switch. Make sure. Network switches are the silent, unsung heroes of our connected world, diligently directing data traffic in offices, data centers, and homes. When they fail, productivity grinds to a halt. Effective network switch troubleshooting is an essential skill for any IT. In this article, you will find helpful tips for troubleshooting common network switch issues. Whether you're a seasoned IT professional or someone who simply wants to resolve network problems efficiently, this guide has got you covered. From sluggish network speeds to connectivity hiccups, we'll. When a customer's physical location experiences a blackout or brownout, network equipment (such as routers, firewalls, and DHCP servers) can end up in a state that requires a reboot to resolve issues such as a stuck VoIP phone that cannot register, calls dropping, and call quality issues. This article provides a comprehensive step-by-step guide to troubleshooting a down network, starting with visual inspections and basic checks before progressing. Please unplug the ethernet cable of port 11 of the Switch that comes from the ISP (Internet Service Provider's) Router and plug it back into any other available 1-in-12 ports as highlighted in the below screenshot.