You can use Wireshark to capture network traffic and analyze it to identify the root cause of the issue.

Network Troubleshooting: Wireshark can help troubleshoot network issues such as slow performance, connectivity problems, or unexpected network behavior.

It is available for Windows, macOS, and Linux operating systems and is free and open-source software. Wireshark is a powerful tool that can be used by network administrators, security professionals, developers, and anyone else who needs to analyze network traffic. It comes with a GUI so you can see interfaces, graphs, and a menu system. This can help you understand the behavior of network protocols, diagnose network issues, and identify security vulnerabilities. With Wireshark, you can capture packets of data as they pass through your computer’s network interface card (NIC) and then analyze and interpret the contents of those packets. It can capture traffic on various types of networks, including Ethernet, WiFi, and Bluetooth, among others. Wireshark is a popular network protocol analyzer software that allows you to capture, analyze and troubleshoot network traffic in real time. Luckily for you, there is a free tool you can use to solve all these issues and more.

I’m sure one or more of these has happened to you, but if you don’t know how to capture packets on your network, then you will be left totally in the dark as to how to troubleshoot and resolve. Have you ever had speed issues on your network but been unable to find the cause? Have you ever been asked to baseline your network?

Have you ever been asked by a customer to sniff some network traffic and send them the file? Have you ever had a theory for the cause of a network issue but been unable to prove it?

Wireshark certification exam cost