Xiaomi router owners often face the need to manually configure their Internet connection, especially when switching to tariffs that require authorization. PPPoE (Point-to-Point Protocol over Ethernet) remains the standard for many providers, as it provides reliable data transfer and subscriber access control. In the Xiaomi ecosystem, the process of setting up an account can vary depending on the firmware version and device model, whether it is Mi Router 4A or the flagship AX3600.
Correct configuration WAN-If you don't know what a PPPoE account is in the context of your router, it's a bunch of logins and passwords that the ISP issues to identify your equipment in the operator's network. Without the correct input of this data, the router will not be able to receive IP-address and transfer the internet to connected devices such as smartphones or smart TVs.
In this article, we will discuss in detail where to find this data, how to enter it into the interface of the Xiaomi router and what to do if the connection is not established. Understanding the principles of this protocol will help you avoid common errors and quickly restore access to the network after changing hardware or resetting settings.
What is PPPoE and why does Xiaomi router need it?
PPPoE is a network channel layer protocol that encapsulates frames. PPP In simple terms, it's a way to create a secure connection between your router and the ISP's hardware. IP, where access is automatically given by MAC-The router acts as a client who "calls" the provider and presents credentials to gain access.
Using this protocol on Xiaomi devices allows you not only to restrict access to unauthorized people, but also to keep accurate traffic records. For the user, this means that even when you change your device or reset it, access to the network will remain under your control, you remember the data.
Mi Router AX1800
⚠️ Note: Incorrectly entering characters in the PPPoE login or password will lead to an authorization error.The router will try to connect, but the provider will reject the request and the Internet indicator will burn red or flash.
It is important to understand the difference between settings LAN and WAN. PPPoE is specifically designed to WAN-The port that handles the input of the external signal. MIUI Router or web version this is often displayed as a "PPPoE" connection type. If you choose the wrong type, for example, "Static" IP" or"DHCP", The router will not request authorization, and the Internet will not work even if the cable is physically connected correctly.
Preparation of data from the provider before setting up
Before you go to the router settings, you need to make sure that you have the right authorization data, which is usually contained in a contract for communication services. You need two key parameters: Username and Password. The login often has the form of an email address or a specific set of characters provided by the operator.
In some cases, providers use a link to MAC-If you are changing your old router to a new Xiaomi Mi Router, cloning may be required. MAC-You can use the address of the old device or call the support to update the information in the operator's database, and without this step, even the correct username and password may not work.
☑️ Checking data before setting up
If the contract is lost, you can find the data in the subscriber's personal account on the provider's website or through technical support. Pay attention to the letter register: the authorization system is sensitive to it. Also check if the password has expired if the provider requires it to be changed periodically.
Step-by-step instructions for entering the router settings
To start setting up, you need to get into the router's administrative panel. Connect your computer or smartphone to the Wi-Fi network of your Xiaomi router or connect devices. LAN-Open any browser and enter the standard address at the address bar: 192.168.31.1 or the domain router.miwifi.com.
The system will ask for an administrator password. By default, this can be a Wi-Fi password if you haven't set a separate password to log in to your settings. Once you've successfully logged in, you'll be taken to the main status page, which displays your current network status.
The algorithm of actions depends on the version of the interface:
- 📱 In the Mi Home mobile app: select your router, go to Settings (three dots or gears) →"Network settings" →"Type of connection".
- 💻 In the web interface: go to the "Settings" section) →"Network Status or Internet settings".
- ⚙️ Find the drop-down “Connection Type” and select PPPoE.
Once you have selected the type of connection, the login and password fields will become active. Enter the data received from the provider. Make sure that no additional spaces are added at the beginning or end of the line, as this is a common cause of errors.
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Use the "Show Password" function when you type to visually check complex characters such as 'l' (el) and '1' (one) or 'O' (o) and '0' (zero).
Entering credentials and maintaining configuration
During the data entry phase, be very careful: the Username and Password fields must be filled in strictly according to contract. Some providers require the additional Service Name, but in 95% of cases this field can be left blank or the default value used.
Pay special attention to the Save Password option. Make sure the checkmark is set so that the Xiaomi router can automatically reconnect after a reboot or short-term communication interruption. Without this, you will have to enter data again on each device.
Once you fill in the fields, click Apply or Save. The router will start the connection process, during which time the indicators may flash and the Internet on the connected devices will temporarily disappear, which is normal behavior, indicating an attempt to log in on the server-side of the provider.
| Parameter | Description | Where to find it. |
|---|---|---|
| Type of connection | Authorization protocol | Manually selected (PPPoE) |
| User name | Login of the account | Contract with the provider |
| Password. | Access key | Contract or Personal Cabinet |
| MTU | Package size | Default (usually 1492 for PPPoE) |
If the status has changed to "Connected" and appeared IP-address WAN, So the configuration was successful. Now your Xiaomi router is broadcasting the Internet to all devices.
Diagnostics and Solving Connection Problems
Often users are faced with a situation where the data is entered correctly, but the connection is not. In the router logs or when the cursor hovers over the status icon, you can see the error code. For example, Error 691 indicates an incorrect username or password, or the end of the service. Error 678 or "Remote computer not responding" indicates problems on the line or at the provider.
Check the physical connection of the cable. WAN-The port on Xiaomi routers is usually marked with a blue or globe icon. Make sure that the provider's cable is inserted there, not in the port. LAN-Also check the integrity of the cable: bending or damage can cause packet loss during authorization.
⚠️ Note: If you use a "modem provider" bundle + Xiaomi router, PPPoE mode may not work if the provider's modem is already configured to distribute the Internet (router mode). IP" (DHCP).
Another reason may be the blocking of MAC-If the ISP has linked the Internet to an old device, the new Xiaomi router will not be allowed to go online. MAC-addresses of the old router in the settings WAN or call the provider to update the binding.
What to do if the router is stuck at the connection stage?
Additional MTU and Security settings
For PPPoE, the important parameter is MTU (Maximum Transmission Unit). The standard value for Ethernet is 1500 bytes, but due to the overhead of PPPoE, the effective MTU is 1492 bytes. Xiaomi routers usually automatically set the correct value, but if you see problems with opening some sites or speed, you can try changing this parameter manually.
In the advanced WAN settings, you can find the MTU field. Set a value of 1492 or even 1472 (for PPPoE over VLAN) can stabilize the connection. However, it is better to leave the "Auto" or default value without any obvious problems, so as not to violate the integrity of the packets.
Also, it's worth taking care of security. Make sure the router is on Firewall and disabled the function. WPS, PPPoE is secure in itself, but vulnerabilities in router firmware can be an entry point for attacks. Regularly update your Xiaomi Router firmware through the Status menu" →"Updating the system".
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Optimal MTU setup is critical to PPPoE stability. If sites load slowly or break down, changing the MTU to 1492 often solves the problem.