Mi WiFi Amplifier Pro: A Complete Setup for Boosting Wi-Fi in 2026

2. Setting the channel width

Channel width affects speed and stability:

• 🔹 20 MHz — the most stable operation, but lower speed. Suitable for densely populated areas.
• 🔹 40 MHz - balance between speed and stability.
• 🔹 80 MHz — maximum speed, but high risk of interference. Recommended only for 5 GHz.

3. Disabling unnecessary functions

Some features may slow down the repeater. Disable:

• 🔄 WPS (unsafe and rarely used).
• 📡 Guest network, if it is not needed.
• 🔒 MAC address filtering (if you don't use it).

5. Common mistakes and their solutions

Even with proper setup, problems can still arise. Let's look at the most common ones.

🔴 Problem: The repeater does not connect to the main network

Possible causes and solutions:

• ❌ Incorrect password → Check the case of the characters (the password is case-sensitive!).
• ❌ The signal is too weak → Move the repeater closer to the router.
• ❌ Incompatible security settings → Turn on the router WPA2-PSK (Not WEP!).

🟡 Problem: Low internet speed through a repeater

What to do:

• 🔄 Switch to 5 GHz (if your router supports this range).
• 📶 Reduce channel width up to 20 or 40 MHz.
• 🔌 Connect the repeater to the router via cable (AP mode).

🟢 Problem: The repeater constantly reboots

Possible reasons:

• ⚡ Unstable power supply → Try a different outlet.
• 🔥 Overheat → Make sure that the ventilation openings are not blocked.
• 📋 Firmware failure → Update the repeater software (see next section).
How to reset the repeater to factory settings?

1. Press and hold the button Reset (on the back panel) for 10 seconds.

2. Wait until the indicator starts flashing orange.

3. Repeat the setup from scratch.

6. Firmware update and reset

Regular firmware updates fix bugs and improve performance. Here's how.

Step 1: Check the current firmware version

Open the repeater's web interface (192.168.31.1) and go to Settings → System → Software UpdateThe current version is displayed at the top of the page.

Step 2: Check for updates

Click "Check for updates." If a new version is available, follow the on-screen instructions. Do not turn off the repeater's power during the update - this may cause damage!

Step 3: Manually install the firmware (if automatic update does not work)

If the repeater does not find updates automatically:

1. Download the latest firmware from Xiaomi's official website.
2. Unzip the archive and save the file with the extension .bin.
3. In the web interface, select "Manual update" and upload the file.

7. Additional features: guest network, parental controls, and more

Mi WiFi Amplifier Pro supports several useful features that many users are not aware of.

1. Guest network

If you want to provide Wi-Fi access to guests but don't want to share the master password:

1. Go to Settings → Guest Network.
2. Enable the feature and set a name/password for the guest network.
3. Limit access speed or time (optional).

2. Parental control

You can restrict internet access for certain devices:

1. In the web interface, open Settings → Parental Controls.
2. Add the MAC address of the device for which you want to set restrictions.
3. Set a schedule or block specific websites.

3. Wi-Fi schedule

If you want Wi-Fi to turn off at night:

1. Go to Settings → Schedule.
2. Specify the days and times when the network should be disabled.
3. Save the settings.

FAQ: Answers to Frequently Asked Questions

🔹 Why doesn't the repeater boost the 5 GHz signal?
Possible reasons:
• Your main router does not support 5GHz.
• The 5 GHz range is disabled in the repeater settings (enable it in Settings → Wireless Network).
• The distance between the router and the repeater is too great - 5 GHz passes through walls worse.
🔹 Can I use a repeater to connect Smart TV?

Yes, but it's better to choose the mode Client:

1. Connect the repeater to the router via Wi-Fi.
2. Connect your Smart TV to the repeater via Ethernet cable.
3. In the repeater settings, select the mode Client.

This will provide a more stable connection than Wi-Fi.

🔹 How do I change the repeater network password?

To change your password:

1. Open the web interface (192.168.31.1).
2. Go to Settings → Wireless → Security.
3. Enter a new password and save the settings.

⚠️ Attention: After changing the password, all devices will be disconnected from the repeater network and will have to be reconnected.

🔹 Why does the repeater display the "No Internet Access" error after setup?
The problem may be:
• Incorrect settings DHCP (enable it in your router).
• IP address conflict (try manually setting the IP for the repeater in a different subnet, for example, 192.168.2.1).
• Blocking the repeater's MAC address in the router (check the filtering settings).
🔹 Is it possible to connect another repeater to a repeater?

Technically yes, but:

• 🔹 Each additional repeater reduces speed by 2 times.
• 🔹 There may be stability issues (it is better to use Mesh system).
• 🔹 The maximum number of "chains" is 2 repeaters (router → repeater 1 → repeater 2).

For larger houses it is better to consider Mesh systems (For example, Xiaomi Mesh Router).

If your problem is not on the list, check it. official Xiaomi support or leave a question in the comments (indicate the model of the repeater and router).