How to see who's stealing your Wi-Fi and block them


Who is using my Wi-Fi?

To find out who’s using your Wi-Fi, the first thing you need to do is make sure you’re connected to the Wi-Fi network you wish to monitor. Next, download the network monitoring app Fing from the link below.





Fing – Network Tools
Install on Google Play

Once you’ve downloaded the app, open it, and you will see the name of your network on the home screen, along with the Refresh and Settings buttons. To see all the devices connected to your Wi-Fi network, tap Refresh.

This process could take a few minutes, but afterwards you will see a list of devices, along with an indicator that tells you if it’s a smartphone or PC.

Tap any device on your network to bring up a list of options for interacting with that device. These include sending pings or Wake on LAN signals, and you can even log when those devices connect and disconnect from the network.

androidpit fing block wifi
Tap a device in the list (left) and you can copy its MAC address to block it. / © AndroidPIT

How to block trespassing devices

If one of the devices connected to your network is unfamiliar or suspicious, your can block it forever. Fing shows you the MAC address of each device connected to your network (the number will follow this format and be made up of numbers and letters: ‘xx:xx:xx:xx:xx:xx’). Make a note of this number.

  • On the computer that is connected to your router, enter your router IP into the browser, then enter your router login details on the next page (to find out your router IP, use this guide)
  • Once logged into your router, find the Security options (its location varies between routers and may be located under Advanced Settings)
  • In Security, click MAC Filtering, then Add Device
  • Enter the MAC address of the device you want to ban in the MAC field, give it a name if there is such an option, then click Apply, Save or OK
  • While you’re logged into your router, it might also be worth changing your Wi-Fi password, seeing as your last one may have been compromised.
AndroidPIT router wifi 2
If people are accessing your Wi-Fi, it’s possible they may have obtained your password. / © AndroidPIT

That’s all there is to it. Have you used this method to find out who is using your Wi-Fi? Let us know in the comments.

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