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Is the neighbor secretly using your WLAN?

It’s no longer just computers and smartphones that log on to the Wi-Fi network. With many devices, it’s easy to lose track of who’s on your network.

Which devices are actually in my Wi-Fi network and do they all belong to me? Some of you may have already asked yourself this question. It can happen that strangers or even neighbors use your WLAN. In the best case, unauthorized access would only slow down your Internet – but it would also be possible to read data sent over the network. Even if criminal activities are going on over your network, there can be trouble atechbook presents two simple ways to keep an eye on who is hanging out on your network.

Monitor connection via router

You can also look directly in the router’s user interface to see which devices are connected via WLAN. The disadvantage of this method is that you don’t get a notification when a foreign device logs on.

With a Fritzbox, for example, you can find the connected devices under “Home network” and then “Home network overview”. In “Home network” you can also activate the “Power Mode” of the Fritzbox.

Monitoring WLAN connections on Telekom routers

It is also easy to find out who is on the network with Telekom routers. To do this, simply open the router configuration and select the “Network” menu. In the submenu “NAT & Port rules” you will find the list with all registered devices. Here you can now switch off one device after the other to identify which device it is. Then name the devices accordingly. If an unknown device, for example from a neighbor, appears in the WLAN network, you can immediately block the culprit. You should also change your access data.

Scan also possible with a smartphone

You can also use your smartphone to quickly find out whether your neighbor or other unauthorized persons are on your WLAN network. To do this, you can simply download a network scanner app. The most popular programs include Fing for Android and Apple , iNet – Network Scanner for Apple or Network Analyzer for Android or Apple . All three apps are Free versions that can be upgraded to Pro versions with more features. However, the Free versions are definitely sufficient for a quick check.

The Pro version of the app costs about 5 euros.
Photo: atechbook Photo: atechbook
The BananaGlue team from Berlin developed the first version of iNet back in 2009.
Photo: atechbook Photo: atechbook
With Fing you get additional features when you log in with your Google.account
Photo: atechbook Photo: atechbook

Monitor WLAN network with PC software

If you want to be constantly informed about what’s happening in your home WLAN, it’s best to use programs like ” WhoFi “.

This free Windows software scans the WLAN for all devices connected to it and presents them in a clear list. Here you can now classify devices as “Known” or “Unknown” and name them individually so that you don’t lose track of them.

The software now automatically scans the WLAN at configurable times and as soon as the program finds an unknown device, it sounds an alarm. This way, you always have an overview of what is going on in your home WLAN and whether your neighbor or others are dialing in unauthorized.

However, the disadvantage of “WhoFi” is that you cannot act from within the program. If a suspicious device is detected, there is no way to exclude it from the network – you have to go via the router. In addition, “WhoFi” is completely in English and requires registration.

What is the difference between WLAN and WiFi? You can find the answer here:

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What should I do if there are actually unauthorized persons on the WLAN?

If there are actually devices on the network that don’t belong there, you should quickly change the WLAN password and log in again on your own devices. Also make sure that you are using the latest WLAN encryption method so that strangers or your neighbor can no longer access your network so easily.

Topics

  • Internet
  • WLAN