Where is the button WPS on the Xiaomi Mi Router router 4A and how to use it

Owners of Xiaomi Mi Router routers 4A Often the need to use the function WPS (Wi-Fi Protected Setup for fast connection of devices to the network without entering a password. WPS It's not easy to find a button on the body of this compact device -- it's not always obvious, and in some versions of the firmware, the function can be hidden in the software menu. WPS doesn't work.

Many users confuse the button WPS With a Reset button, which causes the router to accidentally reboot or even reset, we'll take a closer look at the visual differences, show you the exact location photos, and explain how to activate the router. WPS via the Mi Wi-Fi mobile application or web interface, and we will pay special attention to the typical errors and security measures when using this feature.

If you have never used it before WPS Or you're wondering if it's useful -- there's a section in this article that shows the pros and cons of this connection method. WPS, Why some gadgets (such as iOS smartphones) can’t connect through this technology.

For convenience, the material is complemented by interactive elements: a survey, a checklist for connection preparation and spoilers with technical nuances. FAQ answering the most frequent problems.

What is it? WPS Why you need it on the Xiaomi router 4A

WPS (Wi-Fi Protected Setup is a wireless standard designed to make it easier for devices to connect to a Wi-Fi network. Instead of manually entering a complex password, a user can click a button on a router or enter a short one. PIN-The technology is particularly convenient for devices without screens or keyboards: printers, IP-cameras, smart speakers or guest gadgets.

On the routers Xiaomi Mi Router 4A function WPS implemented in two ways:

  1. Physical button – a short-term press activates the pairing mode for 2 minutes.
  2. P.IN-code – 8-digit code that can be found in the router’s web interface (less secure method).

Main advantages WPS:

  • ⚑ Speed: Connection takes a few seconds.
  • πŸ”’ Convenience: No need to remember or enter long passwords.
  • πŸ“± Compatibility: works with most modern devices (Android, Windows, smart appliances).

However, the technology has disadvantages:

  • πŸ›‘οΈ Vulnerability: PIN-codes can be selected with brute force (so it is better to turn off) WPS after-use).
  • 🍎 Limited support: Apple devices (iPhone, iPad, Mac) do not support WPS.
  • ⏱️ Time Limits: The pairing mode is only active for 120 seconds.
πŸ“Š How often do you use it? WPS connect?
Constantly.
Sometimes.
I tried it before, but I refused.
Never used it.
I don't know what it is.

On Xiaomi routers function WPS It's disabled by default -- you have to manually activate it through settings -- and this is for security, because malicious users can take advantage of the vulnerability to connect to your network.

Where exactly is the button WPS Xiaomi Mi Router 4A: photograph

Button WPS Xiaomi Mi Router 4A It's combined with a reset button and it's located on the back of the device, and it's recessed in the case to avoid accidental pressing:

1. Turn the router back to your back.

2. Near the power port (DC 12V) You will see a small hole with an inscription. RESET/WPS.

3.In some versions of the router, the inscription can only be RESET, function WPS There's also a presence.

Visual diagram:

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β”‚               β”‚




β”‚ LogoTYPE β”‚




β”‚   Xiaomi      β”‚




β”‚               β”‚




β””β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”˜




β”‚




β”Œβ”€β”€β”€β”€β”€β”€β”€β–Όβ”€β”€β”€β”€β”€β”€β”€β”




β”‚ [WAN] [LAN1]  β”‚




β”‚ [LAN2] [USB] β”‚ ← Ports




β”‚ [DC 12V] β”‚ ← Nutrition




β”‚ β—‹ RESET/WPS β”‚ ← Button WPS here!




β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜

To activate WPS, needle:

  1. Take a paper clip or a toothpick.
  2. Press the button carefully and hold it for less than 5 seconds. WPS).
  3. If you hold for more than 5 seconds, the router will reset to the factory settings!

πŸ’‘

If the button does not respond, check if the function is enabled. WPS in the router web interface (Settings) β†’ Wi-Fi β†’ WPS).

On some modifications of Xiaomi Mi Router 4A Gigabit Edition button can be displayed separately or marked with an icon πŸ”„. If you are not sure about your router model, check the sticker on the bottom panel – it shows the exact version.

How to Connect to Wi-Fi via WPS: step-by-step

Use it. WPS Xiaomi Mi Router 4A There are two ways to do this: through a physical button or PIN-Let's look at both options.

Method 1: Connecting via a button WPS

  1. Make sure the router is on and the Wi-Fi network is active.
  2. On the device you want to connect (such as an Android smartphone), open Settings. β†’ Wi-Fi.
  3. Select your network and click Connect through WPS (On some devices, this item may be called additionally. β†’ WPS).
  4. Press the button. WPS on the router (as described above) and hold it for 1-2 seconds.
  5. Wait for a message about a successful connection (usually takes 10–30 seconds).

Method 2: Connecting through PIN-code

  1. Go to the router’s web interface at 192.168.31.1 (the default login and password is admin).
  2. Go to Settings. β†’ Wi-Fi β†’ WPS.
  3. Copy the 8-digit PIN-code.
  4. On the connected device, select your Wi-Fi network and enter PIN password-free.

The router is on and running stably.|The device is within range of Wi-Fi|Function WPS activated in router settings|Wi-Fi is enabled on the connected device-->

If the connection does not occur, check:

  • πŸ”‹ Is the battery discharged on the connected device.
  • πŸ“Ά Are there any interferences from other networks (e.g. neighbors with the same Wi-Fi name).
  • ⏳ Has the time of action not expired? WPS (2 minutes).

After successful connection, it is recommended to disable WPS in router settings to avoid unauthorized access.

How different WPS from the Reset button on Xiaomi 4A

Many users confuse the buttons. WPS Reset, as well as on Xiaomi Mi Router 4A The difference is the retention time:

Action.Retention timeThe result
Short press (<5 sack)1-2 secondsActivation. WPS (pairing mode for 2 minutes)
Long-term retention (>5 seconds)5-10 secondsResetting settings (all parameters are returned to factory)

If you accidentally reset your settings, the router will return to the β€œout of the box” state:

  • πŸ”„ Wi-Fi Name Will Become Standard (Xiaomi_XXXX).
  • πŸ” Password will be reset to factory (indicated on the sticker below).
  • βš™οΈ All user settings (guest network, parental controls) will be deleted.
What to do after an accidental discharge?
1. Connect to the router via cable or through Wi-Fi with factory data. 2. Go to the web interface (192.168.31.1) and set up the network again. 3. Update the router's firmware to the latest version to avoid bugs. 4. Back up the settings in Settings β†’ System system β†’ Backup.

How to avoid accidental resetting:

  • πŸ”§ Use non-sharp objects (such as plastic toothpicks).
  • ⏱️ Keep track of the retention time – no more than 3-4 seconds for WPS.
  • πŸ“Œ If the button is too sensitive, seal it with tape (but leave access for rare use).

How to turn on or off WPS router-setting

Default function WPS Xiaomi Mi Router 4A It's disabled. To use it, you need to activate it in the web interface or through the Mi Wi-Fi app.

Method 1: Through the Web Interface

  1. Open your browser and type 192.168.31.1 (or miwifi.com).
  2. Log in (the default login and password is admin if you have not changed them).
  3. Go to Settings. β†’ Wi-Fi β†’ WPS.
  4. Activate the switch Turn on WPS.
  5. Select the authentication method: button or PIN-code.
  6. Save the settings.

Method 2: Through the Mi Wi-Fi app

  1. Install the Mi Wi-Fi app from Google Play or the App Store.
  2. Connect to the router network.
  3. Open the app and select your router.
  4. Go to the Wi-Fi settings β†’ Additionally. β†’ WPS.
  5. Turn on the function and select your preferred method.

If there is no item in the settings WPS, possibly:

  • πŸ”„ You have an old firmware (update it to Settings) β†’ Update).
  • πŸ“΅ The function is disabled at the regional settings level (in some countries). WPS Prohibited due to vulnerabilities).
  • πŸ› οΈ The router is in bridge or repeater mode (WPS It only works in the router mode).

πŸ’‘

After use WPS It is recommended to disable it in the settings to minimize the risk of network hacking.

Problems with WPS Xiaomi 4A: causes and solutions

If the button WPS not working or the devices are not connected, the reasons may be as follows:

Problem.Possible causeDecision
WPS button does not respondFunction disabled in settingsTurn it on. WPS in the web interface (Settings) β†’ Wi-Fi β†’ WPS)
The device is not connected.Incompatibility of protocolsUpdate the firmware of the router and the connected device
WPS It is activated, but the connection is interrupted.Interference from other networksChange the Wi-Fi channel in the router settings
No point. WPS customizedOutdated firmwareUpdate your router to the latest version

Additional advice:

  • πŸ”„ If the router overheats, WPS It may be unstable, let it cool down.
  • πŸ“‘ Check if the guest network is on – it can block WPS.
  • πŸ”Œ Try connecting the router to another power source (maybe power is lacking).

πŸ’‘

If WPS Does not work on an Android device, try manually adding network: in the Wi-Fi settings, select Add Network β†’ WPS β†’ Connect via the button.

Safety warning:

⚠️ Note: If your router is connected to a public network (such as a cafe or office), never use it. WPS. Attackers can connect to your network in minutes using protocol vulnerabilities, and in such cases it is better to use a complex password or Enterprise solution (for example, a security solution, WPA2-Enterprise).

WPS Alternatives: More Secure Ways to Connect

If you are afraid of vulnerabilities WPS or the feature just doesn’t work, consider alternative methods to connect devices to Xiaomi Mi Router 4A:

1. QR-code (for Xiaomi devices)

  • πŸ“± Open the Mi Wi-Fi app.
  • πŸ”— Go to the Devices. β†’ Connect a new device β†’ QR-code.
  • πŸ“· Scan the code from the screen of another gadget.

2. Wi-Fi Direct (for printers and cameras)

  • πŸ–¨οΈ Enable Wi-Fi Direct on your device (e.g. printer).
  • πŸ”— Connect to the device’s temporary network from your phone/PC.
  • πŸ“€ Transmit data about your main network.

3. Manual connection with complex password

  • πŸ” Use a password at least 12 characters long with numbers and special characters.
  • πŸ”„ Change your password regularly (every 3-6 months).
  • πŸ“Œ Store your password in a manager (e.g. Google Password Manager or KeePass).

4. Guest network

  • πŸ›‘οΈ Create a separate guest network in the router settings.
  • πŸ”„ Limit speed and access to local devices.
  • ⏳ Set time limits (e.g. 2 hours).

If you need to connect a device without a screen (like the Xiaomi Mi Band or smart lamp), use the manufacturer’s app – they often have built-in tools to automatically connect to Wi-Fi.

FAQ: Frequent questions about WPS Xiaomi Mi Router 4A

Can I use it? WPS connect iPhone or Mac?
No, Apple devices (iPhone, iPad, Mac) do not support WPS For the connection, use manual password entry or Wi-Fi Direct (if supported by the device).
What to do if the button WPS broken or not pressed?
If the physical button doesn't work: Try activating WPS via the web interface (Settings) β†’ Wi-Fi β†’ WPS β†’ Insert. Use PIN-Connection code (if available). If nothing helps, contact Xiaomi Service Center to repair or replace the button.
How to know if it's on WPS on my router?
There are two ways: Go to the web interface (192.168.31.1) and check the status in Settings. β†’ Wi-Fi β†’ WPS. Look at the router indicators: when activated WPS Usually a blue or orange LED flashes (depending on the model).
Can I use it? WPS 5GHz network connection?
Depends on the router firmware: On most versions of Xiaomi Mi Router 4A WPS It only works on 2.4 GHz networks. Recent firmware (2023 and later) may support 5 GHz, but this is rare. WPS The range is selected, so it is supported.
Why, after connecting through WPS The internet is not working?
Possible causes and solutions: πŸ”Œ Problems with WAN-Connection: Check the cable from the provider or restart the router. πŸ“‘ Wrong settings IP: In the web interface go to Settings β†’ Local area network and turn on DHCP. πŸ”’ ISP restrictions: some carriers are blocking new devices (call for support).