The program requires no formal installation, consumes minimal system resources, and features a straightforward, functional user interface. Prerequisites and System Requirements
SelfishNet is primarily used in environments with shared Wi-Fi where one user may be hogging bandwidth through heavy downloads or streaming.
Allows you to enter specific bandwidth limits (in KB/s) for individual devices to prevent network hogging.
: This driver is essential for the software to capture and inject network packets.
Features a "Block" checkbox to immediately sever a device's internet connection without disconnecting them from the Wi-Fi. selfishnet v3.0.0 windows
Navigate to the column for the target device and type a maximum threshold (e.g., 50 to limit them to roughly 50 Kilobytes per second).
Network congestion is a frustrating reality. Whether a roommate is streaming 4K videos or a background update is hogging the bandwidth, lag spikes and slow download speeds can ruin your online experience. While high-end routers offer Quality of Service (QoS) settings to manage traffic, configuring them is often complicated.
Address Resolution Protocol (ARP) is the method by which devices on a local network find each other. When your computer wants to communicate with the router (or any other device), it asks the network “who has this IP address?” and expects an honest answer.
: Click the lightning bolt action button to begin active ARP redirection and start enforcing your limits. Security and Ethical Best Practices : This driver is essential for the software
Adjust the "Download" or "Upload" rates for specific devices. To Block: Check the "Block" box next to a device.
Here are some common solutions for typical SelfishNet issues.
SelfishNet requires older .NET Framework 3.0 components. If your Windows 10/11 system prompts you, choose "Download and install this feature".
Think of it as a way to allocate bandwidth on a shared connection. For example, if one device in your home is using excessive bandwidth for large downloads or video streaming, SelfishNet can be used to cap its speed. This can help ensure that other activities, like online gaming or video calls, maintain good performance. It can also be used to identify all connected devices, which is useful for security auditing to see if any unauthorized devices are on your Wi-Fi. Network congestion is a frustrating reality
I understand you're asking about "SelfishNet v3.0.0 for Windows." However, I want to provide some important context before offering a write-up.
Because the software is no longer officially updated, many "free download" links for SelfishNet are bundled with malware or adware . Always scan the executable with updated antivirus software before running it.
Operates entirely from your Windows PC. You do not need the administrator password to the network router to use it.
Clicking this ceases all ARP spoofing, instantly returning the network to its normal, unthrottled state. Allocating Bandwidth and Blocking Devices
Unlike complex enterprise-grade network sniffers, SelfishNet is purpose-built for simplicity. Its primary function is to let you limit the download and upload speeds of specific devices on your network—or block their internet access entirely—with just a few clicks. Key Features of Version 3.0.0
The tool works by poisoning the ARP cache, which can be detected by security software as a malicious act (man-in-the-middle attack).