Avoid random EXE sites full of malware. Only use:

If you are trying to find a working version of Selfishnet for Windows 11, you have likely run into compatibility issues, broken links, or security warnings. Because Selfishnet was created over a decade ago for Windows XP, 7, and 8, getting it to work on modern operating systems requires specific workarounds.

Once downloaded, do not try to run it from inside the compressed folder. Right-click the .zip file and select .

If you’ve ever been frustrated by a roommate, coworker, or family member hogging all the bandwidth while you try to work, you might have heard of . Originally developed as a lightweight network traffic shaping tool, SelfishNet allows users to monitor devices on a local network and selectively limit their internet speed—or disconnect them entirely.

Selfishnet relies on network manipulation drivers (like WinPcap). Because it uses ARP spoofing—a technique also used by hackers to intercept data—your antivirus software or Windows Defender will almost certainly flag Selfishnet as a severe threat, even if the file is clean.

Selfishnet requires a packet capture driver to monitor network traffic. While WinPcap is commonly cited, it is no longer maintained; developers often recommend Npcap for better compatibility with Windows 11.

To limit a device, look at the columns labeled and Upload Cap . Type a specific number (in KB/s) next to the target device to restrict its speed.

If you encounter errors, you may also need to check and select Windows 7 . How to Use

Once you have identified the device you want to control, the main features become available.

To download and run on Windows 11, you generally need two main components: the software itself and the WinPcap driver, which allows the program to interact with your network adapter. Installation Steps

Once the compatibility settings are applied, you can launch and use the application:

Once the app interface opens successfully, you are ready to take control of the network.

SelfishNet belongs in a museum of Windows XP networking hacks — not on a production Windows 11 machine. Save yourself the crashes, antivirus alerts, and unstable ARP floods. Choose a modern tool that’s actually designed for the job.

Completely block internet access for selected devices with a single click. Why Use Selfishnet on Windows 11?

Completely disconnect specific devices from the internet with a single click.

This comprehensive guide will explain how Selfishnet works, how to configure it for Windows 11, and the modern, secure alternatives you should consider instead. What is Selfishnet?

See the exact download and upload speeds each device is currently using. Set strict speed limits (in KB/s) for specific devices.

Requires no heavy background services and runs as a portable application. Prerequisites for Windows 11 Compatibility

Are you connecting your Windows 11 PC via ?