SoftPerfect WiFi Guard
Online User Manual


SoftPerfect WiFi Guard is an essential tool for everyone running a small WiFi network and striving to keep it secure. Generally, modern WiFi networks are well protected, but there is a number of weaknesses that can compromise your WiFi password; this includes vulnerabilities in encryption and brute force attacks. As a result, someone can gain unauthorised access to your Internet and home or office network, exploit them and stay unnoticed.

You may think: “Who cares! I’ve got an unlimited data plan.” But what if someone is reading your personal emails, stealing private information or breaking the law online while using your Internet connection?

Here comes our little app that can alert you whenever your network may be used without your knowledge. WiFi Guard is a specialised monitoring application that runs through your network at set intervals and reports immediately if it has found any new connected devices that could possibly belong to an intruder.

Getting started

If you have not already done so, download a copy of WiFi Guard. Upon its first launch, you will see either the main window, or this configuration dialog if WiFi Guard needs some additional information:

SoftPerfect WiFi Guard configuration dialog
Configuration dialog

You can leave most settings unchanged, however you must choose your WiFi adapter from the list to let the application know which network it should scan.

The Scan this many devices simultaneously setting defines the number of devices scanned in parallel. A higher number will achieve a faster scanning but will use more computer resources, and vice versa. Normally there is no need to adjust this setting.

The Rescan the network every (minutes) setting determines how often WiFi Guard should automatically repeat the scan. If you prefer to scan your network only manually, set this number to zero.

You can access and change all these settings at any time later by clicking the Settings button on WiFi Guard’s main application window.

If you have only one adapter, the configuration dialog will not be displayed. Instead you will be presented with the main application window:

SoftPerfect WiFi Guard main application window
Main application window

The columns display IP and MAC addresses of the detected devices, ping time that shows how long it took the device to respond, automatically detected device names, comments that were added for each device, and the device vendors or hardware manufacturers.

Here you can click the Scan Now button, open the Settings, check the Properties of the selected device, or see All Devices ever detected.

If the Scan Now button is disabled, it means that either your network connection is inactive, or an incorrect adapter has been selected. In this case, click the Settings button and try selecting a different adapter from the list.

Scanning your network

Click Scan Now to detect all your network devices. This will scan your WiFi network and display what is there. It may take some time, depending on the size of your network.

Once the scanning process is finished, you will see a list of devices, including your computer, your router and possibly some other devices. Your computer and your router will be marked as “known” (green) straight away, because WiFi Guard already knows they are legitimate. The devices marked “unknown” (red) represent everything else: other computers, smart phones, TV, Xbox, etc. They are red because WiFi Guard doesn’t know yet whether they have your permission to connect to your network.

SoftPerfect WiFi Guard scan results example
Example of scan results in a small network: two devices were automatically marked as “known” and the other four as “unknown”.

Automatic detection of new devices

If the Instant detection of new devices joining the network setting on the Advanced tab in Settings is enabled, WiFi Guard will automatically and immediately detect every new unknown device connecting to your network. When such device is detected, you will see an alert message, and the device list in the main application window will be displaying just that new device. This list will be repopulated with all your connected devices upon the next scan.

Identifying your devices

The whole idea of WiFi Guard is that you mark all your devices as “known”, and this will allow you to spot new devices in the network that are not yours or should not be there.

Double-click each unknown (red) device and mark it as “known” if you recognise it. You can also add a comment for convenience:

Evaluating devices found by the scan

The simplest way to identify your devices would be to think of what in your place has access to the Internet. If a device is hard to identify from its detected name, turning various devices off and on one by one and repeating the scan in-between can help to find out what is what.

If you still have no idea what some devices are, it makes sense to change your WiFi password in your router to stop them from using your network.

Once you have identified all your devices, the list will ideally look like this, with every device recognised by you marked green:

List of identified devices

If you identified all the devices as yours — great: your network is not compromised. From now on you can either run WiFi Guard periodically to detect any new devices in the network, or configure it to run when the system starts and then scan your network every 30 minutes or so.

In the event of detection of unidentified devices in your network you can act accordingly: mark them as “known” if they are yours, or change your WiFi password if they appear to be strangers.

Still have questions? Check out the how-to articles or drop us a line.

End User Licence Agreement (EULA)

This software and the included documentation is copyright SoftPerfect Pty Ltd. All rights are reserved. The software may be used, installed or copied only in accordance with the terms of the licence described in the following paragraphs.


The evaluation version of the software may be freely distributed, provided that the original distribution package is not modified in any way.


This is not free software. You are hereby licensed to use this software for evaluation purposes without charge. The evaluation version may be of a limited duration, or have some features limited or disabled. To use the software without these restrictions, you need to purchase a licence.


The software is licensed, not sold. Upon purchase of a licence, SoftPerfect grants you non-exclusive, non-transferable right to use the software and all its features according to the terms of this EULA and the purchased licence type as described in the Licence Types section.


  • Single Device Licence grants the purchaser, or agents of the purchaser, rights to install and use the software on one device only (e.g. computer, server, USB flash drive or virtual machine) at any given time. To install and use the software on more than one device, you must purchase the corresponding number of single device licences or one of the special licences listed below.
  • Multiple Licence Pack grants the purchaser, or agents of the purchaser, rights to install and use the software on up to as many devices as is stipulated by the quantity in the pack. For example, the “Up to 10 Devices” pack allows installing and using the software on up to ten devices.
  • Site Licence grants an organisation, or agents of an organisation, rights to install and use the software on an unlimited number of devices within one organisation site, including any cloud-based installation and use performed from that site. An organisation site is defined as a location, or group of locations, used by the organisation that are all within 100 miles (160 kilometres) of each other.
  • Worldwide Licence grants an organisation, or agents of an organisation, rights to install and use the software on an unlimited number of devices at an unlimited number of locations used by the organisation, including any cloud-based installations and use performed from those locations. If not listed, please contact us for the worldwide licence price.
  • OEM Licence grants an organisation, or agents of an organisation, rights to use and distribute the software with their own hardware or software products. These products must provide substantial additional functionality to this software, and not include any potentially unwanted programs.

Where applicable, additional licence subtypes include:

  • Home Licence grants a private individual rights to install and use the software at home, that is in a place of residence, for domestic purposes with no intention to generate income.
  • Business Licence grants an organisation (a company, corporation, firm, enterprise or institution, or part thereof) or a person rights to install and use the software in a commercial and non-commercial environment for the purposes of or in connection with running a business, supplying products or services to other organisations or individuals, or generating income.


Except for the specific purposes described in the Grant of Licence and the Licence Types sections, licence keys issued by SoftPerfect may not be distributed by any person, organisation or their agents without written permission from the copyright holder.


Unauthorised modification, decompilation or reverse engineering of the software or any subset of the software without written permission from the copyright holder is strictly prohibited.


This software is distributed “as is”. No warranty of any kind is expressed or implied. You use it at your own risk. In no event shall SoftPerfect or its agents be liable for any loss or inaccuracy of data, loss or interruption of use, or cost of procuring substitute technology, goods or services, or any other loss or damages.

You may not use this software in connection with any illegal, fraudulent, infringing, harmful or offensive activity.


Installation or use of this software signifies your acceptance of the terms and conditions of the licence. If you do not agree with them, you must stop using and remove the software from your devices. SoftPerfect reserves all rights not expressly granted here.

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