How to Change Your Wi-Fi Router's Security Type: A Complete Guide to Protecting Your Network

A modern home network requires reliable security, and the first step to ensuring security is choosing the right encryption protocol. Many users leave their default settings or opt for outdated security methods, unaware of the risks of data interception. Changing the security type — This is a basic, yet critically important procedure that every wireless router owner should be able to perform.

In this article, we'll look at the differences between various encryption standards, why older methods like WEP are no longer relevant, and how to set them up correctly. WPA2 or WPA3 on devices from different manufacturers. Understanding these processes will help you close vulnerabilities that could allow attackers to access your personal files or use your internet connection for illegal purposes.

The setup process doesn't require extensive networking knowledge, but it does require attention to detail. Incorrectly selecting the right settings can cause older devices to simply stop connecting to the network, so it's important to balance maximum security with hardware compatibility.

Why Choosing an Encryption Protocol is Critical

A security protocol defines the algorithm by which your data is encrypted when transmitted between the router and the device. If you choose a weak standard, for example, WEP, then anyone with minimal knowledge can decrypt your traffic in a matter of minutes. Modern standards use complex mathematical algorithms that make password interception virtually impossible if a complex combination of characters is used.

Often, providers or network installers leave ports open or security weak for the sake of initial setup convenience. However, after installing the equipment, these settings must be changed immediately. Wi-Fi Security — this is not a static state, but a process that requires periodic updating of settings, especially if you change your password or add new gadgets to the network.

⚠️ Attention: Using WEP or WPA (TKIP) makes your network vulnerable to automated attacks that can be carried out using free software available on the Internet.

Furthermore, the type of encryption affects network speed. Outdated security methods can limit maximum channel throughput, creating a bottleneck even with a high-speed plan from your provider. Upgrading to modern standards often improves performance and connection stability.

Comparing Security Standards: WEP, WPA2, and WPA3

Today, there are several main security standards, each with its own characteristics and development history. Understanding the differences between them will help you choose the best option for your situation. WEP (Wired Equivalent Privacy) is the oldest standard, developed back in 1997. Its vulnerabilities were discovered almost immediately, and today it is considered completely insecure.

Standard WPA2 (Wi-Fi Protected Access 2) was introduced in 2004 and is still the most widely used. It uses an encryption algorithm AES, which provides a high level of security. However, it also has a vulnerability known as KRACK, although to exploit it, an attacker would need to be in close proximity to the router.

The most modern standard is WPA3, which was introduced in 2018. It addresses many of the shortcomings of previous versions, specifically protecting against brute-force attacks, even on relatively weak passwords. Below is a table comparing the main features:

When selecting the security type in the router settings, you may encounter mixed modes, for example, WPA/WPA2 MixedThey're designed to ensure compatibility with older devices, but they reduce the overall security of the entire network to the level of the weakest link. If all your devices support modern standards, it's best to disable mixed modes.

Preparing to change router settings

Before making any changes to your wireless network configuration, you need to ensure you have access to the device's administrative panel. This typically involves connecting to the router via cable or Wi-Fi and entering the IP address in a browser. This is most often 192.168.0.1 or 192.168.1.1, however the address may differ depending on the model.

It's important to have your administrator password handy. If you've changed it previously, use the new password. If you accessed the device using the factory settings, they're usually located on a sticker on the bottom of the device. Loss of access the control panel may require a full reset of the router using the button Reset, which will return all settings to factory settings.

It's also recommended to write down your current settings or take pictures of your configuration screens. This will help you quickly restore your network if an error occurs. Keep an eye on the list of connected devices so that after changing the password and encryption type, you only reauthorize trusted devices.

⚠️ Attention: If you change security settings over a Wi-Fi connection, you'll lose connection to the router immediately after applying the settings. It's safer to use a LAN cable to make changes.

Step-by-step instructions: how to change your security type

The setup process may vary slightly depending on the router manufacturer (TP-Link, ASUS, D-Link, Keenetic), but the logic of actions remains the same. After logging into the web interface, find the section responsible for the wireless network. It may be called Wireless, Wi-Fi, Wireless network or WLAN.

Within this section, look for the subsection Wireless Security or SecurityThis is where the drop-down list with encryption types is located. You need to select WPA2-PSK (or WPA3-SAE, if the router is modern) and in the field Encryption choose AESAvoid selecting options labeled TKIP or Mixed, as they are less secure.

After selecting the security type, enter the new password in the field Wireless Password or PSK PasswordSave the changes by clicking the button. Save or ApplyThe router may reboot, and all devices will be disconnected. You'll need to reconnect them using the new password.

In some models, for example, MikroTik or Ubiquiti, the settings may be in more complex menus. For MikroTik the path often looks like this Wireless → Security Profiles, where you need to create a new profile with the desired mode dynamic keys and choose wpa2 psk.

Setting up security on popular router models

Interfaces from different manufacturers have their own specifics. On devices TP-Link with the green interface you need to go to Wireless → Wireless SecurityIn the new blue interfaces (Tether) the path may be Advanced → Wireless → Wireless SettingsIt is important not to forget to select the version here. WPA2-PSK [Recommended].

In routers ASUS with the ASUSWRT interface you need to go to the section Wireless network (on the left in the menu). Tab General contains a field Authentication method. Select WPA2-Personal or WPA3-PersonalIn the field WPA encryption Please be sure to indicate AES.

Devices D-Link often have a menu Wi-Fi → Security Settings. Here you can also choose WPA2-PSKPlease note that older D-Link models may require manual specification of the protocol version. In routers Keenetic (KeenOS) settings are in the menu My Networks and Wi-Fi → Home Network, where you can flexibly configure security for each guest network separately.

Keep in mind that firmware interfaces can be updated. If you don't find an exact match for a menu item, search for keywords such as Security, Encryption, Authentication, or PSK.

Common problems and their solutions

After changing the security type, users often encounter problems with some devices no longer seeing the network or being unable to connect. This is typical for very old devices (smartphones over 10 years old, old printers) that don't support WPA2 or AESIn this case, the only solution is to create a separate guest network with less restrictive settings or replace the old device.

Another issue is "infinite IP address acquisition." This can occur when the computer's Wi-Fi adapter drivers conflict with the new encryption type. The solution is to update the network card drivers or temporarily disable the setting. WMM (Wi-Fi Multimedia) in the router settings, although this may reduce the priority of video traffic.

⚠️ Attention: Settings interfaces and menu layouts may change with firmware updates. If there's no exact match, use the menu items (Security, Encryption, Mode) as a guide.

If you have installed WPA3, and the device only supports WPA2, it won't connect. Modern routers often have a transition mode. WPA2/WPA3 Mixed, which allows both types of devices to connect while maintaining a high level of protection for new gadgets.

Additional wireless network security measures

Changing your security type is a fundamental, but not the only, measure of protection. Be sure to change the default password for your router's admin panel. Attackers often use default login and password combinations (admin/admin) to gain control of your network.

It is recommended to disable this function. WPS (Wi-Fi Protected Setup). Despite the convenience of connecting without entering a password, this protocol has critical vulnerabilities that make it easy to hack the network. In the router interface, this option is usually located in the same section as the security settings.

It's also worth paying attention to the MAC address filtering feature. It allows you to create a whitelist of devices that are allowed to connect. While MAC addresses can be spoofed, this creates an additional barrier to entry for random neighbors or inexperienced hackers. Regularly check the list of connected clients in the router interface.

Don't forget to update your router firmware. Manufacturers regularly release patches to fix new security holes. Automatic updates are the best option if your router supports this feature.