Controlling who can access your home Wi-Fi network is essential to maintain security, prevent speed drops, and ensure only authorized devices use the connection.
Unexpected slowdowns, slow browsing speeds, or sudden disconnections can indicate that more devices are connected than expected. Fortunately, there are simple, accessible methods to detect intruders and regain control of your home Wi-Fi.
Review the list of devices connected to the router
The most direct way to determine who is using the network is to access the router’s configuration. To do this, enter the router’s IP address into your web browser — usually. 192.168.0.1, 192.168.1.1or 10.0.0.1.
After logging in with your username and password (often “admin/admin” by default, unless changed), locate the section labeled “Connected Devices,” “Attached Devices,” or “DHCP Clients.” There you will find a list of connected devices, their IP addresses, MAC addresses, and, in some cases, the name assigned to each device.
On newer router models and mesh systems, this control can be even more intuitive through dedicated mobile apps, such as Google WiFi or TP‑Link Deco. These apps offer clear visuals and let you manage access from anywhere in the house, showing which devices are online in real time.
Free tools to monitor the network from a computer
In addition to the router’s administration panel, there are free tools that analyze the network and display all connected devices. Tools like Wireless Network Watcher or Acrylic WiFi are available for Windows and can scan the local network in seconds.
After the scan, the tool displays the device name, brand, IP address, and MAC address for each connected device, making it easy to spot any unknown or unauthorized devices.
Keys to protecting and strengthening your home WiFi
Beyond detecting connected devices, protecting your Wi-Fi network requires following basic digital security practices. Changing your Wi-Fi password regularly reduces the risk of intrusions.
Using strong encryption protocols such as WPA3 or WPA2 enhances protection against external attacks. Another recommended step is MAC address filtering, which only allows connections from devices that are authorized and previously registered on the router.
It’s also advisable to disable features like WPS, as they can make it easier for unauthorized users to gain access. Regularly checking the list of active connections helps catch suspicious devices early. If unknown devices appear or you notice persistent speed issues, the most effective solution is to change the Wi-Fi password and ask all trusted users to reconnect with the new key.
Regularly monitoring network access and keeping security settings up to date protects personal data, improves performance, and prevents issues caused by unauthorized use of the connection.
Optimize the signal and improve WiFi speed at home
A secure network should also be efficient. Experts from the Spanish Consumers and Users Organization (OCU) explain that the router’s location directly affects signal coverage and speed.
Avoid placing the device on the floor, inside cabinets, or in remote corners. Ideally, install it in a central area of the home, preferably on an elevated surface, with the antennas pointing in different directions.
In multi-story homes, placing the router on the middle floor helps distribute the signal more evenly. For areas with weak Wi-Fi coverage, Wi-Fi extenders are a practical solution. They should be installed at an intermediate point between the router and the poorly covered area to extend the signal effectively.
Controlling access to and protecting your home Wi-Fi is simple with these tools and best practices, ensuring a smooth and secure browsing experience for all authorized users.
