Just to clarify: is a network management tool that can limit or control bandwidth for other devices on a local network. While it has legitimate uses (e.g., network testing, lab environments), it can also be misused to disrupt others' internet access.

WinPcap is the essential engine for SelfishNet. While you can often find the installer packaged within the SelfishNet ZIP file (in the Redist folder), the best practice is to download the latest version from the official source. You can download the WinPcap installer for free directly from its official project website at www.winpcap.org .

Click this to activate the ARP spoofing. This routes the network traffic through your PC so your limits take effect.

Selfishnet requires a packet capture driver to intercept and analyze network traffic. Windows 11 does not include these drivers by default.

to trick other devices on your local network into routing their traffic through your PC, allowing you to limit or block their bandwidth. Prerequisites for Installation

Enter a maximum speed value in Kilobytes per second (e.g., enter 20 to limit a device to roughly 20 KB/s).

This occurs if WinPcap/Npcap is missing or corrupted. Uninstall your current version of Npcap, download the latest version, and ensure you explicitly check the box for "WinPcap compatibility mode" during reinstallation. Devices are not being throttled or blocked

Uninstall any existing versions of WinPcap or Npcap. Reinstall Npcap and ensure you check the "WinPcap-compatible mode" box during setup. 2. The App Closes Immediately or Freezes

– With a single click, you can completely disconnect any device from your network. This is particularly useful for kicking out unauthorized users or managing children’s internet access.

Look at the top toolbar and click the icon (usually a picture of a network card with a magnifying glass or a refresh icon). This scans your network and lists all connected devices.