Selfishnet is a third-party, lightweight network control application. It allows users on a shared Local Area Network (LAN) to monitor connected devices and limit their internet speeds (upload/download). It is widely used in regions where shared internet connections are common, allowing users to claim bandwidth from neighbors or other devices without accessing the router's admin panel.
Using Selfishnet on public Wi-Fi, workplaces, or shared housing without consent is considered a denial-of-service attack in many jurisdictions.
If your intent is something else (e.g., you meant a different tool, or you want a legitimate bandwidth limiter like NetLimiter), let me know and I’ll adjust the response.
To download and run Selfishnet 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
Download WinPcap: Since Selfishnet relies on capturing network packets, you must first install the WinPcap driver.
Download Selfishnet: You can find various versions, such as the SelfishNetV3 release on GitHub, which is often updated for better compatibility.
Extract the Files: Use a tool like 7-Zip or WinRAR to extract the downloaded ZIP folder. Compatibility Settings:
Navigate to the extracted folder and find the executable file (usually SelfishNet.exe or similar). Right-click the file and select Properties.
Under the Compatibility tab, check the box for "Run this program as an administrator".
If you encounter errors, you may also need to check "Run this program in compatibility mode for" and select Windows 7. How to Use
Select Network Card: When you open the program, select your active network adapter (e.g., your Wi-Fi or Ethernet card) from the dropdown menu.
Scan: Click the Network Discovery button (usually a hand icon) to list all devices currently connected to your network. Control Traffic:
Block: Check the "Block" box for a specific device to cut its internet access entirely.
Limit: Enter values in the Download (KB/s) or Upload (KB/s) columns to restrict their speed.
Start/Stop: Click the Yellow Lightning Bolt to start applying your limits, and the Red Cross to stop.
Safety Note: Selfishnet is an older tool and may be flagged by antivirus software as a "Riskware" or "PUP" (Potentially Unwanted Program) because it manipulates network traffic. Always ensure you are downloading from a reputable source.
Maximizing Your Network: A Feature Guide to Selfishnet on Windows 11
Selfishnet remains one of the most effective, albeit controversial, tools for managing shared internet connections. It allows users to monitor and strictly control the bandwidth of every device connected to their network without needing router admin credentials. While originally built for older operating systems, it is fully functional on Windows 11 with the right configuration. Core Functionality
Selfishnet acts as a local network manager that provides three primary capabilities: Real-time Monitoring:
View every PC, laptop, and smartphone currently using your Wi-Fi or Ethernet connection. Bandwidth Throttling:
Manually assign maximum upload and download speeds (in KB/s) to specific devices to prevent "bandwidth hogging". Internet Blocking:
Completely sever the internet connection of any selected device with a single click. Essential Pre-Installation Requirements
To run Selfishnet on Windows 11, you must first install several dependencies, as the tool is a "portable" application that relies on external drivers to "see" network traffic: WinPcap Drivers: WORK Download Selfishnet Windows 11
These are critical for network packet capture. Note that the original has ceased development; modern alternatives like are often recommended for better Windows 11 stability. .NET Framework 3.5:
Windows 11 may prompt you to download this feature when you first launch the app. You must select "Download and install this feature" for the app to initialize. File Archiver: A tool like
or 7-Zip is required to extract the program files from their compressed format. Step-by-Step Setup for Windows 11
Since Selfishnet is an older, open-source utility, it requires specific permissions to bypass Windows 11 security protocols: Extract Files:
Use your archiver to extract the Selfishnet folder to a known location. Compatibility Mode: Right-click the application ( SelfishNet_v3.exe or similar), select Properties , then the Compatibility tab. Check "Run this program as an administrator". Select Adapter:
Upon launch, a dialog box will appear. Select your active Wi-Fi or Ethernet adapter from the drop-down menu. Network Discovery: Network Discovery
button (often represented by a folder icon) to scan for devices. Activate Control: Lightning Bolt
icon to start the redirection process, which enables your ability to limit or block other users. Important Considerations & Risks Temporary Nature:
Selfishnet is not a permanent system change. If you close the application or restart your computer, all bandwidth limits and blocks will be removed, and the network will return to its default state. Security Warnings:
Because Selfishnet uses "ARP Spoofing" to redirect traffic, some antivirus programs like Windows Defender may flag it as suspicious. Ensure you download it from a reputable open-source repository to avoid actual malware. Alternatives:
If you find Selfishnet too technical or unstable, Windows 11 has built-in Delivery Optimization
SelfishNet is a networking tool used to monitor, limit, or block internet bandwidth for other devices on the same Wi-Fi network. While originally developed for older versions of Windows, it can be made to work on Windows 11 by using specific compatibility settings and drivers. Prerequisites for Installation
Before using SelfishNet, you must install supporting drivers that allow the software to capture network traffic:
WinPcap: Essential driver for network interaction. Without this, SelfishNet will likely fail to detect your network adapter.
File Archiver: You will need a tool like WinRAR or 7-Zip to extract the program files. How to Install on Windows 11
SelfishNet is typically a portable application, meaning it does not have a standard installer. Follow these steps to set it up:
Extract the files: Right-click the downloaded ZIP folder and extract it to a known location.
Compatibility Mode: Navigate to the folder (often named "SelfishNet Win7 and up").
Right-click on the executable (usually SelfishNet Beta Vista.exe). Select Properties > Compatibility.
Check "Run this program in compatibility mode for:" and select Windows 7.
Administrator Rights: In the same Compatibility tab, check "Run this program as an administrator" and click OK. Launch: Double-click the executable to start the program. Where to Download
Since SelfishNet is no longer officially maintained, it is primarily hosted on community platforms. Always scan downloaded files for malware, as third-party hosting sites can be unreliable. If your intent is something else (e
GitHub: Some developers maintain updated or fixed versions, such as SelfishNetV3 on GitHub.
Video Tutorials: Many YouTube guides provide direct links in their descriptions, such as this Windows 11 installation tutorial. Important Considerations
Ethical Use: SelfishNet works via ARP spoofing, which tricks the router into sending all traffic through your computer first. This can be considered unethical or even a violation of terms of service on shared networks.
Security Risks: Many security experts warn against downloading this software from unverified sources, as it is often bundled with malware.
Are you having trouble with the network adapter not being detected after installation?
To download and use Selfishnet on Windows 11, you must install specific drivers and configure compatibility settings for it to function on newer operating systems. Selfishnet is a lightweight, portable tool used to monitor and manage network bandwidth by limiting or blocking internet access for other devices on your LAN using ARP Spoofing. 1. Essential Requirements
Selfishnet will not run out of the box on Windows 11. You need the following utilities:
WinPcap Drivers: Essential for the software to interact with your network adapter.
Net Framework 3.5 (includes 3.0): Required to run the legacy application components.
File Archiver: Such as WinRAR or 7-Zip to extract the portable program files. 2. Installation and Setup Guide
Since Selfishnet is portable, it does not have a traditional installer. Follow these steps to set it up:
Install WinPcap: Download and install the WinPcap drivers first.
Extract Selfishnet: Use your archiver to extract the Selfishnet ZIP/RAR file to a preferred folder. Configure Compatibility:
Open the extracted folder and navigate to the SelfishNet Win 7 & Up subfolder.
Right-click the SelfishNet Beta Vista application and select Properties.
In the Compatibility tab, check the box for "Run this program as an administrator" and click OK.
Enable .NET Framework: When you launch the app, Windows 11 may prompt you to download/install .NET Framework 3.5. Select "Download and install this feature". 3. How to Use Selfishnet
Select Adapter: Launch the app and choose your active Wi-Fi or Ethernet adapter from the initial drop-down menu.
Network Discovery: Click the Network Discovery button (usually a blue icon or "radar" symbol) to scan for all connected devices on your router.
Activate Control: Click the Lightning icon to start the redirection process. Manage Bandwidth:
Limit Speed: Type a value (in KB/s) in the Download Cap or Upload Cap columns for a specific device and press Enter.
Block Access: Check the box in the Block column to completely cut a device's internet. Important Considerations Avoid random EXE sites full of malware
Session-Based: Changes are not permanent. Settings revert to default as soon as you close the application or turn off your PC.
Security Risk: Because Selfishnet uses ARP Spoofing, some antivirus software may flag it as a threat. Only download from reputable sources.
Network Ethics: Using this tool on shared or public networks (like hostels or work) can be considered a violation of service terms and may expose your privacy to risks.
SelfishNet is a free, third-party network management tool used to monitor and control internet bandwidth for devices on a local Wi-Fi or Ethernet network. It is widely used by individuals to prevent others from "hogging" bandwidth by manually limiting their upload and download speeds or blocking them entirely. Core Functionality SelfishNet works through a technique called ARP poisoning (or ARP spoofing). How it works
: It sends fake Address Resolution Protocol (ARP) messages to other devices on the LAN, tricking them into believing your computer is the network gateway (router).
: Once traffic is routed through your machine, the software allows you to set specific speed caps (in KBs) or cut off access for specific MAC addresses. How to Use on Windows 11
While SelfishNet is an older tool (often labeled "Beta Vista"), it can still function on Windows 11 with specific steps: Required Drivers : You must install
for the software to interact with network packets; it will not work without it. Compatibility Settings : Right-click the application executable, go to Properties > Compatibility , and check "Run this program as an administrator" Network Selection
: Upon launching, select your active network adapter (Wi-Fi or Ethernet) from the dropdown menu to begin scanning for devices. Activation
: Use the "Network Discovery" (search icon) to find users and the "Start Redirecting-Spoofing" (lightning icon) to apply limits. Risks and Considerations Security & Safety
: Because SelfishNet is not hosted on an official manufacturer website, downloads from untrusted sources may contain malware. Some antivirus programs may flag it due to its "spoofing" behavior. Ethical Concerns
: Using this tool on a shared network without permission is often considered unethical as it disrupts the service others are paying for. Instability
: It is known to cause network instability. If the program crashes while active, it may leave other devices without internet until the router is rebooted or ARP tables are cleared. Official Alternatives
For a more stable and "official" way to manage bandwidth on Windows 11, consider:
Avoid random EXE sites full of malware. Only use:
Filename expected: SelfishNet_1.42_setup.exe (approx. 1.8 MB)
SelfishNet is a small network management utility that lets you view devices on a local network and limit or block their bandwidth. It’s useful for troubleshooting, managing guest access, or enforcing fair usage on small home or office networks—but use it only on networks you own or have permission to manage.
Disclaimer: This guide is for educational and network administration testing on your own equipment. Unauthorized bandwidth throttling may violate laws or ISP policies.
Partially, but with significant caveats.
SelfishNet was last updated around 2012–2014, designed for Windows XP, Vista, 7, and 8. It relies on WinPcap (legacy packet capture library) and .NET Framework 3.5. On Windows 11:
Result: With tweaks, SelfishNet can run on Windows 11, but it is unstable, lacks official support, and poses security risks. For professional use (hence the “WORK” in your search), avoid SelfishNet — use modern alternatives instead.
This tool should only be used:
Unauthorized use to slow others’ connections may violate laws and network policies.