Dynamic setting IP Xiaomi router: from theory to practice

Dynamic IP-Address is the standard way to connect to the Internet for most home users. IP, The dynamic address changes with each new connection or after the expiration of the lease time. Xiaomi routers (including Mi Router models) 4A, 4C, 5, AX3600 and others) are automatically configured by default IP This article will help you understand how to activate and configure dynamic settings correctly. IP, avoiding typical errors.

Connection problems often arise due to incorrect settings WAN-port or conflict with ISP parameters, for example, if your ISP uses PPPoE protocol, but the router is activated Dynamic mode IP (DHCP), We'll go into all the scenarios, from basic configuration to common problems, including when the router "can't see" the network or permanently resets the connection.

Particular attention will be paid to models with MiWiFi firmware ROM And Padavan -- they have different interfaces, and they have different algorithms, and we'll also look at how to check what type of interfaces they have. IP Your ISP uses it, and what to do if the dynamic address doesn't automatically update. FAQ Answering frequent questions and tips on optimizing the network.

What is dynamic? IP And why do you need it?

Dynamic IP-The address is a temporary network identifier that is assigned to the device automatically when connected to the network. IP, which is fixed and requires additional payment from the provider, dynamic address:

• 🔄 Automatically updates at specified intervals (usually every 24-48 hours).
• 💰 Free – does not require additional rental costs from the provider.
• 🛡️ Increases security: Frequent change of address makes it harder for potential hackers to do so.
• 🌍 Save the provider’s resources as unoccupied addresses return to the pool and can be redistributed.

Most home Internet providers (for example, Rostelecom, Beeline, MTS) by default issue dynamic IP-However, in some cases, it may be necessary to force this mode to be configured on the router, for example:

• 🔧 After resetting the router settings to factory.
• 📡 When changing the provider or tariff plan.
• 🔄 If you have previously been static IP PPPoE, and now you need to return the automatic receipt of the address.

It is important to understand that dynamic IP It doesn't always mean "total automation." In some networks, the provider may use binding by MAC-address, and even in dynamic IP will need to be cloned MAC-The address of the computer or specify it in the personal account of the provider, we will talk about this in detail in the section on problem solving.

Preparation for setting up: checking current parameters

Before changing the router settings, you need to make sure the problem is really type-related. IP-Follow this algorithm:

1. Check the current connection status: Connect your computer or smartphone to your router via cable or Wi-Fi. Open the router’s web interface by entering 192.168.31.1 (for most Xiaomi models) or miwifi.com in the address bar.
2. Look at the type. WAN-Connection: Go to Settings section → Internet (or Advanced) → WAN Note the Connection Type field if it says Dynamic. IP (DHCP), But the internet doesn’t work, the problem may be something else.

Clarify the requirements of the provider

• Call support or check the contract: some providers require binding MAC-address or use VLAN.
• If the Internet previously worked through PPPoE, but now the provider has switched to the Internet. DHCP, You need to change the type of connection.

If the router is already in dynamic settings IP (DHCP), But there's no connection, try it:

• 🔌 Reboot the router (by the Reset button or via the web interface).
• 🔄 Update MAC-address WAN (Sometimes it helps with the lockdown. MAC).
• 📡 Connect the ISP cable directly to the computer and check if the Internet is coming up. If so, the router problem, if not, the ISP's line.

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If you have a Xiaomi Mi Router 4A Gigabit Edition, in settings WAN There may be no dynamic option. IP" — Instead, choose Automatic. IP (DHCP).

Step-by-step: how to turn on dynamic IP on a Xiaomi router

The configuration algorithm depends on the firmware of your router. Below are the instructions for standard MiWiFi firmware. ROM (Chinese/Global version and alternative Padavan.

Method 1: Standard MiWiFi firmware ROM

This guide is suitable for most models, including the Mi Router. 4A, 4C, Mi Router 5, AX1800, AX3600 and others with original firmware.

Open the router web interface (192.168.31.1)|Log in (login and password)|Go to "Settings" → Internet"|Select the connection type "Dynamic" IP (DHCP)"|Save settings and restart the router-->

1. Open your browser and enter in the address bar 192.168.31.1 or miwifi.com. Log in (by default login and password – admin).
2. Go to the Settings (or Settings) section) → Internet (Internet).
3. In the block, Connection type WAN (WAN Connection Type: Select Dynamic Type IP (DHCP).
4. If your provider requires a link to MAC-Address: Activate the Use option MAC-The address of this device (Use Current) MAC Address. Or enter. MAC-Manual address (if the provider has previously issued it).

Press Save and wait for the router to restart (usually takes 1-2 minutes).

After the reboot, check your Internet connection. If the connection does not appear, go to the "Problem Solutions" section.

Method 2: Padavan firmware (alternative)

Padavan firmware is popular among advanced users due to its advanced settings. The interface here is different from the standard, so the algorithm is different:

1. Enter 192.168.1.1 (the default address for Padavan) and log in.
2. Go to the Network section → WAN.
3. In the field WAN Connection Type: Select Connection Type DHCP.
4. Make sure that the Get options IP with Unicast DHCP and Accept DNS Configuration is disabled (unless the provider requires the reverse).
5. In the Special Requirement from the ISP You can tell me: VLAN ID (If the provider uses tagging). MTU (Usually 1,500, but some providers require 1,480 or 1,472).

Press Save, then Apply and wait for the reboot.

Padavan also has a useful Ping Check option (in the Network section). → WAN), It allows you to automatically reconnect when you're out of communication. Activate it if your ISP resets the connection frequently.

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If, after setting up the dynamic IP Internet is not working, check if the provider is blocking the connection MAC-In this case, you'll need to clone the router. MAC-The address of the computer from which the Internet was previously.

Table: Comparison of connection types WAN

To better understand the differences between dynamic IP And with other types of connectivity, check out the table below, and this will help you choose the right mode if the provider uses custom settings.

If you are not sure what type of connection your provider uses, contact technical support or check the information in your personal account. For example, Rostelecom uses PPPoE in most regions, and Beeline uses PPPoE — DHCP (dynamic IP).

Problem Solving: Why Dynamics Doesn't Work IP

If, after setting up the dynamic IP The internet is still missing, the reasons may be as follows:

• 🔌 Problems on the provider side (line break, technical work).
• 🔄 Wrong settings VLAN (relevant to fiber optic connections).
• 🛡️ Lock-in MAC-address (the provider has linked the Internet to the MAC-device-address).
• ⚡ Router or cable malfunction (check the indicators on the case).

Let us consider each case in more detail.

1. The provider blocks the MAC-address

Many providers (for example, Dom.ru, TTK) link the Internet to the Internet. MAC-If you plugged the ISP cable directly into your computer and then switched to the router, the Internet might not work:

1. Find out. MAC-address of the network card of the computer from which the Internet was previously: In Windows: open the command line (Win) + R → cmd) and enter ipconfig /all. Search for the physical address line. macOS/Linux: Use the ifconfig or ip a command.

In the router's web interface, find the section MAC Clone (usually in settings) WAN) and enter the copied MAC-address.

Save the settings and restart the router.

2.Tune-in needs VLAN

If your provider uses the technology VLAN (e.g. MGTS or Rostelecom in some regions, you must specify the identifier VLAN In the router settings. How to do that:

1. Check with the provider number VLAN ID (usually a number from 1 to 4094).
2. In the router web interface: For MiWiFi ROM: Settings → Internet → Additional settings WAN. For Padavan: Network → WAN → VLAN.

Activate the Enable option VLAN and enter the received from the provider ID.

Save the settings and restart the device.

If the internet is not working, try to turn it off. VLAN and check the connection without it.

3.Problems with MTU

MTU (Maximum Transmission Unit is the maximum size of a data packet that can be transmitted without fragmentation. Some providers (especially when connecting via PPPoE) require a reduction in data transfers. MTU before 1480 or 1472, symptoms incorrect MTU:

• Sites are partially opened or not opened at all.
• Downloading files is interrupted.
• Ping is gone, but the internet is not working.

To change MTU on a Xiaomi router:

1. In the web interface, go to the settings WAN.
2. Find the field. MTU (It may be in additional settings).
3. Set the value 1480 and save the settings.

If that doesn’t work, try the 1472 or 1460 values.

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If after all the manipulations the Internet did not work, try to connect the provider's cable directly to the computer. If the Internet appears, there is a problem in the router (maybe you need to reset or flash).

Additional settings: Optimization of work with dynamic IP

Even if dynamic IP successfully configured, you can improve the stability and speed of the connection with the help of additional parameters.

1.Tune in. DNS

The router receives by default DNS-servers from the provider, but they are not always optimal. To speed up the loading of sites and bypass possible blocking, it is recommended to use public DNS:

• 🌍 Google DNS: 8.8.8.8 and 8.8.4.4.
• 🌍 Cloudflare DNS: 1.1.1.1. and 1.0.0.1.
• 🌍 Yandex DNS: 77.88.8.8 and 77.88.8.1.

To change the DNS on the Xiaomi router:

1. Go to Settings → Internet.
2. Find the Basic DNS and Secondary DNS fields.
3. Enter the addresses of the selected DNS-server.
4. Save the settings and restart the router.

2. Automatic update IP (if the address does not change)

Sometimes dynamic IP "It gets stuck and doesn't update for days, which can cause problems accessing some services. IP:

1. Turn off the router power for 5-10 minutes (complete shutdown, not reboot via the web interface).
2. If it doesn't help, in the settings. WAN Find the Release option IP (Release. IP) renew IP (Update IP).
3. In extreme cases, contact the provider - perhaps on their side is included long-term rental address.

3. backup connection (for Padavan firmware)

If your provider often breaks the connection, you can set up a backup connection in Padavan firmware via USB-modem (3G/4G). For that:

1. Connect. USB-router.
2. Go to Network. → USB Modem.
3. Select Backup mode (Reserve Connection).
4. Indicate. APN your mobile operator (for example, Internet.beeline.ru for Beeline).

Now, when the main connection breaks, the router will automatically switch to mobile Internet.

Frequent Mistakes and How to Avoid Them

When setting up a dynamic IP Users often make mistakes:

⚠️ Note: If you have previously used PPPoE and are now switching to dynamic IP, Make sure that the router’s settings have disabled authorization (the Login and Password fields must be empty.

Other typical problems:

• 🔌 Incorrect cable: Use only the cable provided by the provider (especially for fiber optic cables).
• 🔄 Conflict IP-Addresses: If you have another device on your local network with 192.168.31.1, you will have a conflict with your router. IP router in settings LAN.
• ⚡ Outdated firmware: on older versions of the software may not have options for setting up VLAN or MTU. Update the firmware through Settings → Update of the PO.

If after all the manipulations the Internet has not worked, perform a complete reset of the router to the factory settings (reset button for 10 seconds) and repeat the setting from scratch.

FAQ: Answers to Frequent Questions