Today's digital environment dictates strict requirements for data security, and the home wireless network becomes the first line of defense. Many users face the need to change encryption settings when they discover the outdated WEP protocol or want to implement the more secure WPA3 standard, which is supported by new devices. Security type determines the algorithm by which data packets between the router and client devices are encrypted, so this parameter cannot be ignored.
In this article, we will take a detailed look at the process of changing the encryption protocol on devices of this brand. TP-Link, taking into account the specifics of both old and new management interfaces. You'll learn the differences between WPA2-PSK and WPA3-SAE, as well as receive clear instructions on how to access the web configurator and properly configure wireless settings. Important: Changing the security type will require all your devices to reconnect to Wi-Fi with the new password or updated settings.
Before you begin, make sure you have physical access to the router and a computer connected via cable or Wi-Fi. This is necessary because the wireless connection will be lost when applying the settings, and if you're configuring the network remotely, you may lose access to the control panel. TP-Link offers flexible management tools, but requires care when choosing specific encryption options.
Choosing the Right Encryption Protocol for Your Network
Understanding the differences between available protocols is a key step before making any changes to your router configuration. The older WEP (Wired Equivalent Privacy) standard is considered completely vulnerable and can be cracked in minutes even by an inexperienced attacker using automated scripts. Modern routers TP-Link By default, WPA2-PSK (AES) is offered, which provides reliable protection, but it is already being replaced by WPA3.
The WPA3 (Wi-Fi Protected Access 3) protocol implements stronger encryption algorithms and protects against brute-force attacks, even if the password itself is not particularly complex. However, it's worth keeping in mind that very old devices, manufactured more than 10 years ago, may simply not see the network or be unable to connect if you select "WPA3 Only."
The table below provides a comparison of the main characteristics of the security protocols available in the router menu:
| Protocol | Level of protection | Compatibility | Recommendation |
|---|---|---|---|
| WEP | Critically low | All devices | Do not use |
| WPA-PSK (TKIP) | Short | Old gadgets | Avoid |
| WPA2-PSK (AES) | High | Almost all devices | Basic standard |
| WPA3-SAE | Maximum | New devices (2018+) | For modern technology |
⚠️ Warning: If your network includes smart plugs, older printers, or older gaming consoles, enabling WPA3 Only mode may result in them losing their internet connection.
Login to the TP-Link router web management interface
To change security settings, you need to log in to the device's administrative panel. This can be done through any browser on a computer or smartphone connected to the router's network. In the address bar, enter the gateway IP address, which is the default for most models. TP-Link equal 192.168.0.1 or 192.168.1.1.
An alternative way to log in is to use a domain name. tplinkwifi.net or tplinkmodem.net, which automatically redirects to the authorization page. If the default addresses don't work, check the sticker on the bottom of the router—it contains the exact IP address, as well as the factory username and password for logging in.
After entering the correct credentials, you'll be taken to the main interface page. Depending on the firmware version, the interface may be blue and white (classic) or have a modern green/black design. Navigation differs, but the section search logic remains the same. Wireless (Wireless mode) remains similar.
Security settings in the classic interface (Blue)
In older router models, such as the series TL-WR740N or Archer C20i (older firmware versions) use the classic interface. After logging in, you need to find the section in the left menu Wireless, and then subsection Wireless Security (Wireless Security).
A page will open with several radio buttons that determine the security type. You need to select an option. WPA/WPA2 - Personal (Recommended)This selection activates the "Version" drop-down menu, where you should leave it set to "Automatic" or select "WPA2-PSK" for maximum compatibility. In the "Encryption" field, be sure to select AES, since the TKIP algorithm is considered obsolete and reduces network speed.
In the field Wireless Password Enter a new, complex password. The key must be between 8 and 63 characters long. It is recommended to use a combination of uppercase and lowercase letters, numbers, and special characters. After making your changes, click the Save (Save) at the bottom of the page.
☑️ Check security settings
Please note that after clicking the save button, the router may reboot the wireless module. If you are connected via Wi-Fi, the connection will be lost, and you will have to search for your network again in the list of available networks and enter a new password.
Setting up in the new interface (Green/Black Tether)
Modern models such as Archer AX10, Archer AX50 and newer versions use an updated web interface with clearer navigation. The setup logic has been simplified: go to the Basic (Basic settings) in the top menu and select the section Wireless (Wireless network).
Here you'll see a single field for Wi-Fi settings. Scroll down to the security section. Unlike older models, this often has the "Enable WPA3" checkbox checked by default or the mode selected. WPA2/WPA3 MixedThis is the optimal choice for a mixed environment where there are both new smartphones and older devices.
If you need maximum protection and you are sure that all devices support the new standard, select the mode WPA3-SAEEnter the passphrase in the password field. Please note that new interfaces often have a "Copy to Guest" feature, which is best left unchecked to avoid propagating weak settings to the guest network.
⚠️ Note: Router interfaces may vary slightly depending on the firmware version. If you don't see the described items, check the user manual on the manufacturer's official website.
What should you do if you forgot your Wi-Fi password after changing settings?
If you've changed your password and forgotten it, but need to connect urgently, your only option is to reset your router to factory settings. To do this, locate the Reset button (usually recessed into the router's housing), turn on the router, and press the button with a paperclip for 10 seconds. The router will return to the factory settings listed on the sticker.
Additional wireless network security measures
Changing the encryption type is a foundation, but building a strong fortress requires additional measures. One of the most effective is hiding the network name (SSID). If you enable this option Enable SSID Broadcast to the "Disable" position (or uncheck the "Enable SSID broadcast" box), your network will disappear from the list of available networks on your neighbors' phones.
To connect to a hidden network, you'll have to manually enter the network name (SSID) and security type on each new device. This creates inconvenience for guests, but significantly reduces the likelihood of "Evil Twin" attacks, where an attacker creates a network with a similar name.
It is also recommended to enable MAC address filtering. In the menu Wireless MAC Filtering You can set an "Allow" rule by listing only the MAC addresses of your personal devices. Even if someone learns your password, they won't be able to connect because their physical address won't be whitelisted.
Let's look at the basic steps to strengthen your protection:
- 🔒 Disable the feature WPS (Wi-Fi Protected Setup), as it has known vulnerabilities that make it easy to recover the PIN code.
- 📡 Regularly update your router firmware using the section
System Tools→Firmware Upgrade. - 🛡️ Use a guest network to connect visitors' devices, isolating them from your personal files.
Common problems and their solutions
After changing the security type, users often encounter a situation where their phone or laptop displays "Unable to connect" or endlessly attempts to obtain an IP address. This most often means that the device "remembers" the old network settings and attempts to apply them to the new settings.
The solution lies in the "Forget Network" feature. You need to go to the Wi-Fi settings on the affected device, select your network, tap "Forget" or "Delete," and then reconnect using the current password. This will force the device to re-establish a handshake with the router.
Another common mistake is choosing the wrong encryption type. If the router is set to AES, and on the old device it was forced to be selected TKIP, there will be no connection. In such cases, in the advanced settings of the wireless adapter on the computer, you should set the security type to "Automatic" or explicitly specify WPA2-Personal AES.
If none of these methods help, try changing the wireless network channel. Congestion in the airwaves from neighboring routers can create interference, which, when the encryption protocol (and therefore the packet structure) changes, becomes critical for older signal receivers.
Why did the Internet disappear on my TV after changing the settings?
Most likely, your TV only supports the older WPA/TKIP standard, and you've switched your router to WPA2/AES. Try selecting "WPA/WPA2" compatibility mode and "TKIP/AES" (Auto) encryption in your router settings, or, if possible, update your TV's firmware.
Is it possible to restore access to the router without resetting it?
If you've changed your web interface password (admin) and forgotten it, restoring access without a factory reset is impossible for security reasons. The Reset button is the only way.
Does security type affect Wi-Fi speed?
Yes, it does. Using legacy TKIP encryption limits the speed of 802.11n and higher standards to 54 Mbps. To achieve higher speeds on AC and AX standards, AES mode is required.