Resetting the Xiaomi Redmi AC2100 router to factory settings: 3 proven ways

Why would you need to reset the Xiaomi Redmi AC2100 router?

The Xiaomi Redmi AC2100 router is a popular device among users due to stable operation, support for dual-band Wi-Fi (2.4 GHz + 5 GHz) and high data transfer speeds up to 2100 Mbps. However, even the most reliable equipment sometimes requires a complete reset. The reasons can be different: from banal configuration errors to serious software failures.

Most often, a reset to factory settings is needed in the following cases:

• 🔄 You forgot your password from your admin panel or Wi-Fi network, and restoring through 192.168.31.1 doesn’t help.
• 🐢 Router began to “slow down”: pages load for a long time, video in the Internet 4K The internet is constantly buffered and the speed of the internet is falling for no apparent reason.
• 🔌 After updating the firmware, the device stopped correctly distributing the Internet or even “hangs” when turned on.
• 🛡️ Suspicion of hacking: the network appeared unknown devices, and settings DHCP or DNS have been changed without your knowledge.
• 📦 Before selling or transferring the router to another user – to delete all personal data (logins, passwords, connection history).

It’s important to understand that resetting is a radical measure that erases all user settings, including network name (SSID), Wi-Fi password, attached devices in Mi Home, parental controls and guest access. After the procedure, the router will return to the “out of the box” state and it will have to be configured again.

Method 1: Reset via web interface (recommended method)

If you have access to the router's admin panel, it's the safest and most controlled way to back up your settings before resetting (if the device is still stable).

To reset the Redmi AC2100 via the web interface:

1. Connect your computer or smartphone to the router via Ethernet cable or Wi-Fi.
2. Open your browser and type in 192.168.31.1 (or miwifi.com).If the page doesn't open, check the connection or try another browser.
3. Enter the login login login password. By default, this is the admin and password that you specified when you first set up (or the standard one from the sticker on the router case).
4. Go to Settings → System → Backup / Reset.
5. Click the Reset button and confirm the action.

It'll take about a minute. 1–2 The router will reset, and all the indicators on the front will turn green, which is a signal that the reset was successful. Xiaomi_XXXX (where XXXX — last-minute MAC-addresses) and reconfigure the device.

Save current settings (Section "Backup")|Connect to the router via cable (recommended)|Close all programs using the Internet |Confirm that the router is not currently updated-->

⚠️ Note: If the router does not issue after resetting IP-address (not open 192.168.31.1), try manually setting the network adapter static IP ranged 192.168.31.X (e.g. 192.168.31.100) with mask 255.255.255.0.

Method 2: Hardware reset with the Reset button

If access to the web interface is lost (for example, due to a forgotten password or a router freeze), a physical Reset button on the device’s body will help. On the Xiaomi Redmi AC2100, it is located on the back next to the power port and has a small hole – you will need a paper clip or toothpick to press.

Instructions for hardware discharge:

1. Turn the router on and wait until it is fully loaded (the power indicator is on with even light).
2. Find the Reset button and press it with a paper clip, holding for 10-15 seconds.
3. Release the button when the indicators on the front start flashing orange quickly, a sign of a reset.
4. Wait for the reboot (about 1-2 minutes), and then all the indicators should turn green.

If the indicators don't blink or the router doesn't restart, repeat the procedure by holding the button for up to 20 seconds. Sometimes it helps to turn off the power for 30 seconds before resetting.

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If the Reset button doesn’t respond, try using an alternative method: turn off the power, press the button, turn on the router and hold it for another 15 seconds after turning on.

Method 3: Reset via the Mi WiFi app (for smartphones)

If you have an Android or iOS smartphone, you can reset your router via the official Mi WiFi app, which is convenient when you don’t have access to your computer, but requires that the device is already tied to your Xiaomi account.

Step-by-step:

1. Install the Mi WiFi app from Google Play or the App Store.
2. Connect your smartphone to the Redmi AC2100 router network (via Wi-Fi or cable).
3. Open the app and select your router from the list of devices.
4. Go to the Settings section → General → Resetting settings.
5. Confirm the action and wait for the process to be completed.

Once reset, the router will automatically disconnect from the application and have to be added again. If a connection error appears in Mi WiFi, try updating the application or reinstall it.

Possible errors in discharge and their solutions

Even if you follow the instructions, the reset can fail, so let's look at the typical problems and how to fix them.

1.The router is not reset by the Reset button

• 🔌 Check the power supply: perhaps the voltage is insufficient (use the original adapter on the 12V/1A).
• ⏱️ Hold the button longer – sometimes it takes up to 30 seconds.
• 🔄 Try resetting via a web interface or app if the router is still responding.

2. After discharge, no 192.168.31.1 opens

• 🌐 Check the network settings on your computer: IP must be within range 192.168.31.X.
• 🔄 Restart the router and computer.
• 📱 Try connecting from your smartphone – sometimes the problem is in the browser cache.

3.The router got stuck after reset (red lights are on)

• ⚡ Turn off the power for 1 minute, then turn it on again.
• 🔧 If it doesn’t work, try hand-stitching the router through TFTP (guideline).
• 📦 In extreme cases, contact the service center - it is possible that the device memory is damaged.

⚠️ Note: If the router reboots constantly after resetting or if it gives a System Error error, this may indicate that the firmware is damaged. UART or TFTP — procedure.

How to restore the router after resetting?

After a successful reset, the Xiaomi Redmi AC2100 will return to factory settings. To re-use the Internet, you need to perform the initial setup:

1. Connect to the router network: find a network with a name Xiaomi_XXXX (password is indicated on the sticker at the bottom of the device).
2. Open the web interface: type in the browser 192.168.31.1 and follow the setup wizard.
3. Select the mode of operation: 🌍 Router mode – if the Internet is connected through WAN-port (from provider). 🔄 Repeater mode – if you need to expand your existing network. 📡 Access Point Mode – to create a new network without an Internet connection.

Set up the Wi-Fi:

SSID

WPA2-PSK

5 GHz

36–48

149–165

Update the firmware:

Settings → Update

For convenience, you can use a backup if you saved it before reset. The settings file is downloaded in the Settings → System → Backup.

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After reset, be sure to update the router’s firmware – this will fix known vulnerabilities and improve the stability of the work.

What if the reset didn't help?

If there are problems after reset (for example, the router still “slows down” or does not give the Internet), the reasons may be deeper:

• 📶 ISP-side problems: check if the Internet works when you connect the cable directly to your computer.
• 🔥 Overheating router: Redmi AC2100 It can overheat when you're under a lot of pressure, put it in a ventilated place, or use a cooling stand.
• 🛠️ Hardware malfunction: If the router is producing memory errors or not turning on, the flash memory chip may have failed.
• 🐞 Firmware conflict: If the reset was performed after a failed update, try flashing the router manually through TFTP.

You can use the built-in logs to diagnose the diagnosis. Go to Settings → System → System log and check for critical errors (e.g., "DHCP failed" or "Wireless restart").

Frequently asked questions