Xiaomi WiFi Request Limitation: What It Means and How to Fix It

Xiaomi smartphone users often face a situation where the device stops connecting to the wireless network, and in logs or notifications there is a message about limiting requests. This is not just a random software failure, but a security mechanism that is activated when frequent authorization attempts.

The reason is that the router's security protocol detects too many connection attempts, so if your phone is constantly trying to reconnect with the changed identifier, the router blacklists it, and you see a "Limited" status or an infinite reception. IP-Understanding the nature of this process is the first step to rebuilding a stable Internet.

In this article, we will go into detail why this problem occurs on Redmi and Poco devices, and offer proven ways to fix it. DHCP-servers and other technical aspects that affect the connection.

The nature of the blockage on the router

Modern routers are equipped with intelligent systems to protect against DoS attacks and brute force. When a Xiaomi smartphone sends a request for connection, it transmits its own data. MAC-If multiple requests are received from a single device or rapidly changing identifiers in a short period of time, the router activates the security mechanism, which is standard behavior for equipment brands TP-Link, Keenetic and other devices. ASUS.

Often the problem is compounded by the fact that the router’s settings have an overly aggressive sensitivity threshold, which can block not only malicious traffic, but also legitimate attempts by the smartphone to find the network after leaving the coverage area. IP-address is not issued and the connection is terminated at the authentication stage.

⚠️ Warning: Endless attempts to reconnect can result in complete lockdown MAC-Your device address in the router settings, in which case you will need to manually reset the list of prohibited devices through the admin web interface.

It's important to understand that the request restriction message is a router response, not a defect in the smartphone itself, but it's the WiFi algorithms in the MIUI or HyperOS shell that can trigger this response because of the power management features.

πŸ“Š How often do you have a WiFi connection error?
Every day.
Once a week.
Only after the update
Never had.

Randomization function MAC-Android addresses

Starting with Android 10, the system has a feature of enhanced privacy protection. By default, the smartphone generates a random MAC-This is done so that access point providers and access point owners can't track user movements, but for home routers, this is often a problem.

When you disconnect from the network and reconnect, the phone may present itself as a new device. The router, seeing a "new customer," tries to allocate resources to it. If there are too many such "new customers" in a short time (due to a constant change of address), the limit of requests is triggered. The security system thinks that there is an attack on the network.

To check and change this setting, follow the following steps:

  • πŸ“± Go to your smartphone settings and open the WiFi section.
  • πŸ”— Click on your network name or the arrow next to it to enter details.
  • πŸ”’ Find the Privacy or Type item MAC-address.
  • πŸ”„ Switch the value to "Random" MAC" on"MAC-address".

Once you change the setting to use a real hardware address, the router will stop seeing your phone as a stranger, which stabilizes the connection and eliminates the need for constant re-authorization, which often eliminates the limitation error.

πŸ’‘

If the type changes MAC-If you don't get the address, try to select "Forget this network" from the same menu, and then re-enter the password.

Power saving settings MIUI and HyperOS

Xiaomi’s shells are known for aggressive battery optimization, which can force a WiFi connection to be broken if it thinks an app or service is inactive and then immediately try to reconnect, and this break-to-connect cycle generates a flurry of requests, leading to a router blocking it.

To solve the problem, you need to configure exceptions for WiFi system services. Go to the Applications β†’ All applications. Find the list "WiFi" or "Wireless Networks." From the Energy Savings menu, select the No Limits mode. This will prevent the system from "strangling" the communication module in the background.

Also worth noting is the WiFi Assistant feature, which automatically switches your phone to mobile Internet if the wireless signal seems weak, the constant tossing between 4G and WiFi puts a strain on the module. Turn off this option in the WiFi settings by clicking three dots in the corner of the screen and selecting the WiFi Assistant.

ParameterRecommended valueInfluence on error
Type MAC-addressMAC-addressHigh (resolves the ID conflict)
Saving WiFi energyNo restrictions.Medium (prevents breaks)
Frequency rangePreferably 5 GHzLow (reduces interference)
WiFi AssistantOff.Medium (stabilizes the connection)

Problems with DHCP-renting and IP-addressing

One of the technical reasons for the reporting of restrictions is the conflict. IP-addresses or pool overflows DHCP If the smartphone requests an address, gets it, but it doesn't have time to complete handshake, it sends a new request. The router sees a series of requests from one client and puts a limit on requests.

Static often helps IP-Addressing. Unlike dynamic receiving, a static address is permanently attached to the device, which removes the bargaining phase between the phone and the router every time you connect. Go to your WiFi settings on your phone, select Settings. IP and change DHCP static.

When manually configuring, specify the following parameters (if they are different from the standard ones for your network):

IP- Address: 192.168.1.128


Gateway: 192.168.1.1




Length of network prefix: 24




DNS 1: 8.8.8.8




DNS 2: 8.8.4.4

It is important that the chosen IP-The address was not within the range that the router automatically distributes (usually this is the same as the router). 100-200). It is better to choose a number at the end of the range, for example, 200 or 250, Avoid conflicts with guests.

What to do if static IP doesn’t work?
If manual address registration does not solve the problem, the router may have enabled filtering by access time or is a speed limit for new devices. Check the section "Parent control" or "Bandwidth control" in the router's web interface.

Resetting network settings and cleaning the cache

Accumulated errors in network configurations can cause cyclical connection attempts. In Android, system files are responsible for storing network profiles and connection parameters. If they are damaged, the phone can behave incorrectly, generating erroneous data packets.

The most effective way to clear this data is to reset your network settings. This action will not delete your personal files, photos or contacts, but will return all Bluetooth, WiFi and mobile internet settings to factory values.The path to the feature is usually in the Settings menu β†’ Connection and Sharing β†’ Reset WiFi, mobile networks and Bluetooth.

After discharge, it is necessary to:

  • πŸ”„ Reboot your smartphone to apply changes.
  • πŸ“‘ Re-enter your password from your home network.
  • πŸ”Œ Reboot the router (turn off the socket for 10 seconds).
  • πŸ“± Check if the restriction problem persists.

⚠️ Attention: After resetting your network settings, you will have to reconnect to all known WiFi networks and reconnect Bluetooth devices (watches, headphones.

Diagnostics through engineering menu and logistic

For advanced users, there is a possibility to state the WiFi module through the engineering menu. In Xiaomi phones with MediaTek and Snapdragon processors, a hidden tester is available. Enter the code ##4636## in the call menu. If the menu opens, select Information β†’ WiFi Information.

You can see the current status of the connection, the signal level and the number of errors. If you see a constant change in state (State: Disconnected β†’ Connecting β†’ Scanning), this confirms the reconnect cycle. Also, the Scan command is available in this menu, which shows all the networks available and their channels.

If you have a lot of neighbor networks on one channel, your router may have trouble transferring service packets, which the phone perceives as a loss of communication, in which case it makes sense to change the channel in the router settings to a less loaded one (for example, 1, 6 or 11 for 2.4 GHz).

β˜‘οΈ Checklist of WiFi diagnostics

Done: 0 / 5

Frequent Questions and Answers (FAQ)

Why does the β€œLimited” bug only appear on Xiaomi and it works on other phones?
This is due to the features of the optimization of the shell MIUI/HyperOS Xiaomi's algorithms can break the connection more often to save charge, which provokes the defense mechanisms of routers. MAC-address.
Can a virus on your phone cause a restriction of requests?
Theoretically, yes, if malware attempts to scan the network or connect to hidden services, but 95% of the time it is caused by standard system settings or security protocol version conflict (WPA2/WPA3), not viruses.
Will resetting the router to factory settings help?
Yes, it's a radical but effective method. Resetting the router will clear the blocked list. MAC-Addresses and resets settings DHCP. However, after that, you will have to reconfigure the network name, password and provider settings.
Does the Android version have an impact on this?
Yes, Android 12 and 13 have changed the rules for working with permissions and network. MAC-Addresses are more common because the system is more sensitive to privacy, sometimes at the expense of compatibility with older routers.

πŸ’‘

In most cases, the problem is solved by switching. MAC-Addresses to "Device Address" and disabling aggressive energy saving for WiFi module.