Experiencing packet loss in an internal network can be a frustrating issue, especially when multiple physical servers and a Cisco-managed switch are involved. This article will cover the key concepts and troubleshooting steps to help you identify and resolve the problem. Cisco recommends that you have a fundamental understanding of networking concepts, including TCP/IP, VLANs, and Spanning Tree Protocols (STPs). Knowledge. Our room controllers operate on a loop topology just daisy chaining one device to another to another etc, until it reaches EOL, and then the last device loops back to the floor switch creating a loop that is protected by the RSTP. This is just to have that small amount of redundancy in case 1. This guide will walk you through what causes this issue and provide a clear, step-by-step process for how to fix packet loss. When you do anything online—load a webpage, join a video call. Packet loss occurs when data packets transmitted through a network fail to reach their destination. Imagine ordering a desk that ships in five boxes. Boxes 1, 2, 4, and 5 arrive undamaged, but box 3—containing every last screw, bolt, and connector, of course—has gone missing in logistics-land.