How to change the password on the Wi-Fi router Xiaomi Mi 4A: instructions with pictures and tips

The Xiaomi Mi Router 4A is one of the most popular network devices in the Xiaomi lineup, combining affordable price, stable operation and ease of setup. However, even with such a reliable gadget, it periodically becomes necessary to change the password from Wi-Fi: whether it is a suspicion of data leakage, a desire to put a more reliable code or banal forgetfulness. Unlike smartphones, where password reset takes a couple of clicks, working with a router requires knowledge of its web interface and some security nuances.

In this article, you will find step-by-step instructions on how to change the password on the Mi Router 4A, from logging into the admin panel to saving new settings. We will also break down common errors (for example, when the router does not accept the standard login / password), tell you how to choose a strong password, and give tips on how to optimize the network after changing the key. If you have never entered the router settings before, don’t worry: the process is as simple as possible, and all the steps are illustrated with screenshots.

Preparing for password change: what you need to know before you start

Before you start changing your password, make sure you have everything you need. First, you need to access the router itself, either physically or through another device connected to its network. Second, prepare the data to log into the admin panel: the default is the admin login and password on the sticker at the bottom of the device (usually a combination of 8 characters). If you have previously changed this data and forgotten it, you will have to reset the router to factory settings.

Also check that your computer or smartphone is connected to the router via cable or Wi-Fi. If you use a mobile device, it is better to turn off data transmission over the cellular network to avoid conflicts. Lastly, prepare a new password. It should be at least 8 characters long, include letters (capital and lowercase), numbers and special signs. Avoid obvious combinations like 12345678 or qwerty - they are easy to crack.

• 📌 Default Login and Password: usually admin / password from the sticker on the router (e.g. 12345678).
• 🔌 Connection: via Wi-Fi or via Ethernet cable (port) LAN router).
• 🔒 New password: minimum 8 characters, with letters, numbers and special characters.
• 🖥️ Browser: Better to use Google Chrome or Mozilla Firefox (Safari may have problems displaying the panel).

⚠️ Note: If you previously configured your router through the Mi Wi-Fi app and set a separate password to log in to the web interface, the standard sticker data will not work.

Step 1: Enter the control panel of the router Xiaomi Mi 4A

To change your Wi-Fi password, you first need to go to the router’s web interface, and open any browser on a device connected to the Mi Router 4A network and type one of the following addresses into the address bar:

• 192.168.31.1 - the main IP-Address for most of Xiaomi routers.
• miwifi.com – alternative domain (works if not changed) DNS-setting).

If none of the addresses opens the control panel, check the connection to the router or try resetting the browser cache. Once you enter the address, you will see an authorization window where you need to specify the username and password.

• Login: admin
• Password: Indicated on the sticker at the bottom of the router (e.g., 12345678 or other combination).

If the data doesn't fit, someone has changed it before, and then you have two options: remember the old password or reset the router to the factory settings (which we'll talk about below), and you'll be taken to the control panel's home page after you log in.

Step 2: Navigate the menu – where the Wi-Fi password changes

The Xiaomi Mi Router 4A interface is intuitive, but if you're here for the first time, it can be confusing. Once you log in, you'll be on the homepage with information about connected devices and network status. To change your Wi-Fi password, do the following:

1. In the top menu, look for the Settings tab (or Settings if the interface is in English).
2. In the left side menu, select Wi-Fi (sometimes called Wireless Network).
3. A Wi-Fi settings page will open, and you’ll see two sections here: 2.4GHz and 5GHz (if your router supports dual-band).

By default, the Mi Router 4A only has 2.4GHz enabled, but if you've previously configured 5GHz, you'll have to change the password for each band separately.

• 🔄 Change password: enter a new key in the appropriate field.
• 👁️ View current password: click on the eye icon next to the field (if any).
• 📡 Change the name of the network (SSID): If you wish, you can change the name of Wi-Fi.

After making the changes, remember to click Save (or Save) at the bottom of the page, the router will reboot, and all devices will be disconnected from the network, and they will have to be reconnected with a new password.

The new password contains at least 8 characters.|Password includes letters, numbers and special signs|Name of the network (SSID) does not contain personal data|You will save your new password in a safe place.|All important devices are ready to reconnect-->

Step 3: Choosing a Strong Password – Security Tips

A weak Wi-Fi password is like an open door for hackers, and even if your network doesn't contain sensitive data, it can be used to spread viruses or traffic, and to avoid problems, follow these guidelines when choosing a new password:

• 🔐 Length: minimum 12 characters (optimally 16)+).
• 🔤 Difficulty: combination of capital and lowercase letters, numbers and characters (!@#$% etc.).
• 🚫 Exclude: dates of birth, names, dictionary words, repeating characters (1111, aaaaa).
• 🔄 Regular change: update your password every 3-6 months.

Examples of strong passwords:

• Tr0ub4dour&3-Fox!
• C0ff33$h0p@M0rn1ng
• V3ry-L0ng-P@ssw0rd#2026

To remember your password, write it to a password manager (like KeePass or Bitwarden) or save it to an encrypted file. Don't store it in the open on devices connected to the same network!

⚠️ Note: If you use a guest network on a router, you also need to set a separate password for it. Guest access usually has limited rights (for example, no access to local devices), but it can also be hacked with a weak password.

Step 4: What to do if you can’t log into your router settings

Sometimes users face a problem: the router does not accept the standard login / password, or the login page does not open at all.

• 🔄 Forgotten password: If you have changed your login data and forgotten it, you will have to do (hard reset). To do this, press and hold the Reset button on the back of the router for 10-15 seconds (until the indicators start flashing). After that, the router will return to the factory settings, and you will be able to log in with the data from the sticker.
• 🌐 The page won't open. 192.168.31.1: Check that you are connected to the Mi Router. 4A (Try another browser or clear the cache. Make sure that IP-The router address has not changed (check via command line: ipconfig on Windows or ifconfig on Windows). macOS/Linux).
• 🔌 Router fails to respond: If the indicators don't burn or the router doesn't turn on, check the power supply and cable.

If the reset didn’t work or the router is unstable (for example, constantly restarting), it may be the firmware problem, in which case you will have to update the software through the control panel or manually. For how to do this, read the official Xiaomi documentation.

Step 5: Additional security settings after changing password

Changing your password is just the first step to protecting your network, and to make it truly secure, we recommend you do a few more things in the Mi Router 4A control panel:

1. Disable Remote Access: Some Xiaomi routers have Internet-based settings enabled by default. This is convenient but not secure. Go to Settings → System → Remote Management and turn off this option.
2. Update firmware: Outdated software may contain vulnerabilities. Check for updates in Settings → Update firmware.
3. Set up the filtering. MAC-Addresses: This will only allow allowed devices to connect to the network. → Wi-Fi → Filter MAC.
4. Enable guest network: If you have frequent visitors, it is better to create a separate network for them with limited rights, which will protect your main network from potential threats.

Also, pay attention to encryption mode. The Mi Router 4A uses WPA2-PSK by default, which is a good balance between security and compatibility. If your devices support WPA3, you can switch to it for even more protection.

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If you have children, set up parental controls in Settings → Parental Controls, where you can limit access to certain sites or set limits on Internet use.

Step 6: Solving problems after changing your password

When you change your password, you may have difficulty connecting devices or accessing the Internet, and here are the most common problems and solutions:

• 📱 Devices don't connect to Wi-Fi: Make sure you enter the new password correctly (registration matters!) Reboot the router and the device you're trying to connect from. Check if the router's filter is on. MAC-Addresses (it can block new devices).
• 🌍 No Internet access: Check if the provider’s cable is connected to the port WAN Go to Settings on the router. → Internet and make sure the type of connection (PPPoE, DHCP etc.) set up correctly. Contact the provider - they may have the problem on their side.
• 🔄 Router reboots constantly: This can be a sign of malfunction or overheating. Turn off router for 5-10 minutes, then turn on again. If the problem recurs, try resetting to factory settings.

If your Internet speed has dropped after changing your password, check if the router is running throughput control (QoS), which sometimes limits speed for some devices, and you can turn it off in Settings → Additional → QoS.

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If the router is unstable after changing your password, try rolling back the change (return the old password) first. If that doesn't work, reset the settings to the factory and reset the router.

FAQ: Frequent questions about changing the password to Xiaomi Mi Router 4A