Wireshark Packet Analysis skills are critical in today's networks. Whether you are a field tech, a data center engineer, or a generalist in IT, you need to know how to use Wireshark. This free tool has been under the radar, or even kept off the radar, for far to long. The most common problem reported is "my network is running slow". Swapping equipment, or re-booting gear, temporarily masks the problem. The solution is to capture and analyze packets, and learn how to troubleshoot the issues, while learning how the Internet actually works! Here are the most popular Wireshark classes.