How to change the password on a TP-Link router via a computer via Wi-Fi: a complete guide

Forgot your Wi-Fi password or want to update it for security? Change your router password TP-Link Using a computer is a simple procedure that takes no more than 5 minutes. However, many users encounter difficulties: they can't access settings, confuse encryption types, or lose connection after changes. In this article, we'll discuss step-by-step algorithm changing the password, nuances for different models (TL-WR841N, Archer C6, Deco) and ways to avoid common mistakes.

If you're connected to the router via cable, the process is simpler. But what if you only have access via Wi-Fi, but your old password no longer works? We'll tell you how to get around this problem without resetting your device to factory settings. You'll also learn which security settings should be changed along with your password to protect your network from hacking.

Before you begin, make sure your computer is connected to the router's network (even if the internet isn't working). If you've forgotten your current Wi-Fi password but have access to the device via cable, use it. Otherwise, you'll have to reset the router using the reset button. Reset, which will delete all settings.

1. Preparation: What you need to know before changing your password

Before changing your password, check three key points:

1. Router model. Settings interface TP-Link Archer AX20 And TL-WR740N differs. New models (2020+) use a shell TP-Link Omada or Deco Mesh, and the old ones have the classic blue interface.
2. Firmware version. Outdated firmware may not support modern encryption standards (WPA3). Update the firmware in advance if your router was manufactured before 2018.
3. Connection typeIf you change your Wi-Fi password, the connection will be lost after saving the settings. Prepare a cable or a second device with network access in advance.

Please note current IP address of the router. Usually it is 192.168.0.1 or 192.168.1.1, but some providers (eg Rostelecom) change it to 192.168.100.1You can find the address using the command line:

ipconfig /all

Look for the line Main gateway - this is the IP of your router.

2. Login to the TP-Link router web interface

To change your password, you need to log into your router's control panel. Follow these instructions:

1. Open any browser (Chrome, Firefox, Edge) and enter the router's IP address in the address bar (for example, http://192.168.0.1). Click Enter.
2. A login window will appear. Enter your username and password to log in. By default, this is:
   • Login: admin
   • Password: admin or an empty field (depending on the model)

If the data doesn't match, check the sticker on the bottom of the router - it may contain individual login details.

Problems logging in? Possible causes and solutions:

• 🔄 Invalid IP addressTry alternative options: tplinkwifi.net, 192.168.1.1 or 10.0.0.1.
• 🔒 Forgot your login details?Reset the router using the button Reset (hold for 10 seconds) and use standard admin/admin.
• 🌐 The browser is blocking accessDisable your VPN, clear your cache, or try a different browser.

⚠️ Attention: After resetting the settings (Reset) all router settings will be reset to factory defaults. You'll have to set up your internet connection again.

3. Step-by-step instructions: how to change your Wi-Fi password

The procedure depends on the interface version. Below are general instructions for most models. TP-Link:

Log in to the router's web interface | Go to the "Wireless" section | Select the "Wireless Security" tab | Specify a new password and encryption type | Save settings and reconnect -->

For the classic interface (blue/green design):

1. In the menu on the left, select Wireless → Wireless Security (or in Russian: Wireless → Wireless Security).
2. In the field Wireless Password (PSK password) Enter a new password. The recommended length is 8–20 characters using letters, numbers and symbols (!@#$%).
3. In the drop-down menu Version select WPA2-PSK (or WPA3-PSK, if your devices support it).
4. Click Save (Save). The router will reboot.

For the new interface (TP-Link Omada/Deco):

1. Go to Basic → Wireless.
2. Find the block Wireless Security and click Edit.
3. Enter the new password in the field Password and select the encryption type WPA2/WPA3.
4. Save the changes by clicking the button Apply.

If Wi-Fi disappears after saving, check if you accidentally disabled the wireless network in the settings. Go to Wireless → Wireless Settings and make sure the box is checked Enable Wireless costs.

4. What to do if Wi-Fi doesn't work after changing the password

Typical problems and their solutions:

• 📶 The network has disappeared from the list. Check if wireless mode is enabled in the settings (Wireless → Enable Wireless Radio). You may have accidentally disabled it.
• 🔄 The router does not save settingsUpdate the firmware via System Tools → Firmware UpgradeOutdated software versions may reset parameters.
• 🔒 The new password does not work.Make sure you're entering it correctly (case-sensitive!). Try connecting from a different device.
• 🌍 No internet access. Check your WAN settings (Network → WAN). Your ISP may be tying access to your MAC address—clone it in your settings.

If the router TP-Link After changing the password, it constantly reboots or flashes all the indicators - this is a sign of a firmware failure. Restore it through TFTP-mode (instructions are available on the manufacturer’s website).

⚠️ Attention: Some providers (eg. Beeline or MTS) block access to router settings if it's rented. In this case, the password can only be changed through the operator's personal account.

5. Additional security settings

Changing your password is only part of network security. We also recommend setting up:

• 🔐 MAC address filteringAllow only trusted devices to connect. Wireless → Wireless MAC Filtering.
• 🕵️ Hiding the SSIDDisable network name broadcasting in Wireless → Enable SSID Broadcast (but then you will have to enter the SSID manually on each device).
• 🛡️ Guest network. Create a separate network for guests with limited access to local resources (Guest Network).
• 🔄 Automatic firmware updateTurn on in System Tools → Firmware Upgrade → Enable Auto Upgrade.

Why is it important to update firmware? Vulnerabilities are often found in older versions of software. For example, in 2021, a critical flaw was discovered in routers. TP-Link with firmware older than 2019, allowing you to reset the password remotely.

How to check if your Wi-Fi has been hacked?

If in the section DHCP → Client List If you see unfamiliar devices and your internet speed has suddenly dropped, it's likely that someone else has connected to your network. Change your password and enable MAC address filtering.

6. Changing the password on a TP-Link router via a mobile app

If you don't have a computer at hand, use the official app Tether (available for Android And iOS):

1. Download and install TP-Link Tether from App Store or Google Play.
2. Connect to the router's network (even if the Internet is not working).
3. In the application, select your router model and enter the login/password (default admin/admin).
4. Go to Wireless → Password, enter a new password and save.

The advantage of the application is its user-friendly interface and the ability to control the router remotely (if the function is enabled). Cloud Access). However, in Tether fewer settings than the web version.

7. How to restore access if you forgot your router password

If you don't remember your control panel login details (admin/password), there are two ways:

• 🔑 Factory reset. Press and hold the button Reset on the back of the router for 10-15 seconds (until the indicators start blinking). After that, use the standard admin/admin.
• 📄 Recovery via sticker. There may be a unique login password on the bottom of the router (for example, Serial Number or Wi-Fi Password).

After the reset, you will need to reconfigure your internet connection. Parameters to enter (for example, PPPoE-login and password) can be clarified with the provider or found in the contract.

⚠️ Attention: On some models TP-Link (For example, Archer C5400) button Reset recessed into the body. Use a paperclip or toothpick to press it in.

FAQ: Frequently asked questions about changing your TP-Link password

Is it possible to change the Wi-Fi password without accessing the router?

No. To change your password, you need access to the web interface or mobile app. TetherIf you forgot your login details, you will have to reset the router using the button Reset.

Which password is more secure: WPA2 or WPA3?

WPA3 It's safer, but not all devices support it (especially older smartphones and printers). If you have gadgets older than 2018 on your network, choose WPA2-PSK with encryption AES.

Why don't some devices connect after changing the password?

Possible reasons:

• The device does not support the selected encryption type (for example, WPA3).
• The password contains invalid characters (Cyrillic, spaces at the beginning/end).
• The MAC address filter is enabled on the router, and the new device is not added to the list.

How often should I change my Wi-Fi password?

Recommended frequency - once every 3–6 monthsAlso change your password if:

• You have had guests join you.
• Have you noticed suspicious devices on your network?DHCP Client List).
• The router was hacked (for example, the Internet became slower for no reason).

Is it possible to set a password on the router itself so that no one can access the settings?

Yes. In the section System Tools → Password You can change your username and password for accessing the control panel. Use a complex combination, different from your Wi-Fi password.