Lanbench

While LANBench is excellent for Windows users, it is not the only option. Windows GUI Command Line (CLI) Ease of Use High (Beginner-friendly) Low (Steep learning curve) Protocol Platform Windows Only Cross-platform (Linux, macOS, Win) CPU Usage

Specifically designed to benchmark TCP performance.

Temporarily disable firewalls to ensure they do not throttle the test traffic.

: On the designated receiving machine, the user runs the software and clicks Listen . The tool immediately hooks into the designated port and waits passively for incoming traffic. LANBench

Unlike complex enterprise testing suites, LANBench is built with simplicity in mind. It uses a client-server architecture to stream synthetic data packets directly through your network RAM, providing a pure look at your network's physical and data link performance. Key Features of LANBench

LANBench is an invaluable, free utility for anyone looking to ensure their network infrastructure is performing at its peak. By measuring internal TCP performance, it bridges the gap between what your hardware is rated for and what it actually delivers.

Ensure your network card drivers are up to date. LANBench Alternatives While LANBench is excellent for Windows users, it

The original LANBench was written for Windows using WinSock2. Modern versions for Linux often use POSIX sockets and epoll .

Run LANBench, select "Client" mode, enter the IP address of Machine A, and set the duration. Start Test: Click "Start" on the client machine. Analyze Results: The tool will display the speed in Interpreting LANBench Results 100 Mbps Network: You should see results around 1 Gbps (Gigabit) Network: You should see results around Wi-Fi 5 (802.11ac): Varies greatly, but often depending on distance and interference. Wi-Fi 6 (802.11ax): Can exceed in optimal conditions.

LANBench remains a highly effective, lightweight choice for quick network throughput verification. By isolating your network hardware from storage device bottlenecks, it provides an accurate, clear picture of local connectivity speeds. Whether you are verifying a new Cat6 cable installation, troubleshooting a slow network switch, or tuning wireless access points, keeping LANBench on your IT toolkit USB drive ensures you can diagnose and resolve local network bottlenecks efficiently. To help narrow down your network testing setup, tell me: What are running on your test machines? : On the designated receiving machine, the user

Because it is fully portable, LANBench requires no installation. You can run it directly from a USB flash drive, making it a favorite for network administrators, IT professionals, and PC hardware reviewers who need a quick way to test Ethernet or Wi-Fi throughput. Key Features of LANBench

If you experience slow transfer speeds across an entire office department, run LANBench between two machines connected to the same local switch. If speeds are normal, run the test between machines on different switches. This helps determine if the bottleneck lies within a specific workgroup switch or the backbone link connecting them. LANBench vs. Alternatives (iPerf and NetIO)