How to Identify and Block Unwanted Devices from Your WiFi Network

If you’ve noticed a sudden drop in your internet speeds or other connectivity issues, it could be that unauthorized devices are piggybacking on your WiFi network. Ensuring your network is secure and free from intruders is crucial not only for maintaining optimal internet performance but also for protecting your privacy and personal information.

Below, we explore a range of tools that can help you detect and manage devices on your network.

wifi router

Essential Tools to Detect Unauthorized WiFi Access

1. Wireless Network Watcher

This user-friendly tool is designed specifically for Windows users. Wireless Network Watcher is free and effective at displaying all the devices currently connected to your WiFi network. Simply download it from the developer’s website, execute the file, and bypass the security prompt by selecting “More information” followed by “Run anyway.” The application will scan your network and list all connected devices, allowing you to spot any unfamiliar ones. If you do find unknown devices, you can secure your network by restricting access via MAC addresses directly from your router settings.

2. Advanced IP Scanner

Available as both a portable and installable application, Advanced IP Scanner provides a clear and concise overview of all the devices on your network. Downloadable from its official website, this tool is free and does not require any registration. Once launched, a quick scan will reveal detailed information about each connected device, helping you to easily identify any that don’t belong.

3. Angry IP Scanner

For those who prefer open-source solutions, Angry IP Scanner is an excellent choice. It quickly scans IP addresses and system ports to reveal which are occupied and which are free. Although it presents data in a somewhat raw format, it’s particularly useful for tech-savvy users interested in comprehensive network scanning capabilities. The tool allows for scanning of any IP range and its ports, providing essential network management features.

4. Fing

Fing is a widely used network management tool that offers detailed insights into your network. It not only identifies all connected devices but also monitors bandwidth usage and sends alerts when new devices join your network. However, Fing does require user registration, which might be a downside for those concerned about privacy, as the data collected could potentially be used for other purposes.

Conclusion

Regularly monitoring who accesses your WiFi network is a vital step in maintaining your internet security. The tools mentioned—Wireless Network Watcher, Advanced IP Scanner, Angry IP Scanner, and Fing—offer various features to suit different needs, from basic detection to advanced network management. Choose the one that best fits your technical expertise and security requirements to keep your network safe and performant.