Why did the router stop distributing Wi-Fi to my phone (but it still works for other devices)?

Have you noticed that The router stopped distributing Wi-Fi to the phone., even though your laptop, tablet, or smart TV is connected and working fine? This random malfunction is more common than you might think. In 80% of cases, the problem lies not with the router itself, but with phone settings, protocol conflicts, or authentication errors. For example, Android 12+ And iOS 16+ automatically block networks with outdated encryption types (WEP or TKIP), which leads to Wi-Fi “invisibility” or endless receipt of an IP address.

In this article we will look at 10 most likely reasonsWhy your phone won't connect to Wi-Fi while other devices work fine. You'll learn how to diagnose the problem in 5 minutes, which router settings to check first, and what to do if the problem is caused by hardware issues. We'll pay special attention to hidden restrictions on the number of connected devices in budget routers (for example, in TP-Link TL-WR840N or D-Link DIR-300), which manufacturers do not advertise.

1. The phone is blocked by MAC address in the router

Many routers (especially with firmware from providers like Rostelecom or Beeline) are used MAC address filtering to protect your network. If your phone has previously connected to a different network or its MAC address has changed (for example, after a factory reset), the router may automatically block the device. In this case, the list of connected clients (DHCP Clients List) the phone may not be displayed at all.

How to check:

• 🔍 Go to the router's web interface (usually at 192.168.0.1 or 192.168.1.1).
• 📋 Go to the section Wireless → MAC Filtering (or Wireless Mode → MAC Filter).
• 🔄 Check if your phone is blacklisted (Deny).
• 📱 Find out your phone's MAC address: Android - V Settings → About phone → General information → Wi-Fi MAC address; on iPhone - V Settings → Wi-Fi → (i) next to the network → MAC address.

If the phone is on the blocked list, remove it or add it to the white list (Allow). If filtering is disabled but the problem persists, proceed to the next step.

⚠️ Please note: Some providers (eg. MGTS or Dom.ru) bind internet access to the router's MAC address. If you've changed the router or reset its settings, internet access may only work on devices connected via cable, and Wi-Fi will be shared, but without network access. In this case, you'll need to call the provider back and report the new MAC address of the router.

2. DHCP failure: the phone does not receive an IP address

If the router distributes Wi-Fi, but the phone connects to the network, but does not access the Internet (Wi-Fi icon is active, but pages don't load), most likely the problem is DHCP protocolThis protocol automatically assigns IP addresses to devices on the network. If the address pool is exhausted or the DHCP service is frozen, the phone may wait indefinitely for an address and then display the error "Connected without internet access."

How to diagnose:

1. On your phone, go to Wi-Fi settings, click on your network and look at the IP address provided. If it starts with 169.254.x.x, this means that DHCP did not work.
2. In the router's web interface, check the section LAN → DHCP SettingsMake sure that:
• 🔢 IP address range (e.g. 192.168.0.100–192.168.0.199) is not exhausted.
• ⏳ Rental time (Lease Time) not installed in 0 (optimally - 24 hours).
• 🔄 DHCP function is enabled (Enable DHCP Server — ON).

If the settings are correct, but the IP is not issued:

• 🔄 Reboot your router (unplug the power for 30 seconds).
• 📱 Forget the network on your phone (Wi-Fi Settings → (tap on the network) → Remove/Forget) and reconnect.
• 🛠️ Manually assign an IP address on your phone (in Wi-Fi settings, select Static IP and specify an address from the router range, for example, 192.168.0.200).

3. Wi-Fi Standards Conflict: 802.11n vs. 802.11ac

Modern phones (eg. Samsung Galaxy S22 or iPhone 14) support the standard 802.11ac (Wi-Fi 5), and older routers (for example, TP-Link TL-WR740N) can only work in the mode 802.11n (Wi-Fi 4). If the router settings are set to Only 11n or Legacy, the phone may either not see the network, or connect at a reduced speed with constant disconnections.

How to fix:

1. Go to the router settings section Wireless → Wireless Settings.
2. Find the parameter Wireless Mode or Network Mode.
3. Set value 11b/g/n/ac mixed (or similar with support for all standards).
4. Save the settings and reboot the router.

If after changing the mode the phone still does not connect, try:

• 📶 Disable the feature Wi-Fi Optimizer or Smart Connect (It can automatically switch devices between 2.4 and 5 GHz bands, which causes crashes).
• 🔄 Manually select a range 2.4 GHz on your phone (some phones allow you to select a band in the Wi-Fi settings).

⚠️ Attention: In apartment buildings, channels 2.4 GHz are often overloaded. If the router automatically selects a channel, try manually selecting a less crowded one (for example, 1, 6 or 11). For this, use applications like Wi-Fi Analyzer (Android) or NetSpot (iOS).

4. Authentication error: Incorrect password or security type

One of the most common reasons why The router doesn't connect the phone to Wi-Fi. - This incompatibility of security types. For example:

• 🔒 The router is using an outdated one WEP or WPA-TKIP, which Android 10+ And iOS 14+ block by default.
• 🔄 Your phone retains the old password, but you changed it in the router settings.
• 📱 The function is enabled on the phone Random MAC (random MAC address), which is why the router does not recognize the device.

How to solve:

1. Check the security type in your router (Wireless → Wireless Security). The best option is WPA2-PSK [AES] or WPA3-Personal.
2. If it's worth it WPA2/WPA3 Mixed, try leaving only WPA2 (some phones don't work well with hybrid mode).
3. On your phone, disable random MAC address:
   • On Android: Settings → Wi-Fi → (tap the network) → Advanced → Private MAC Address → Off
   • On iPhone: Settings → Wi-Fi → (i) next to network → Private address → Off

Delete the network on your phone and reconnect, entering the password manually (sometimes autofill enters incorrect characters).

5. Limitation on the number of connected devices

Many budget routers (for example, Tenda N301, Mercusys MW300D) have hidden limit on the number of simultaneously connected devices — usually between 8 and 16. If the limit is reached, the router may block new connections without displaying an error. Priority is often given to devices connected via cable or previously active clients.

How to check:

• 📊 Go to the router's web interface in the section DHCP → DHCP Clients List or Wireless →Connected Devices.
• 🔢 Count the number of connected devices. If there are more than 10-15, try disconnecting unnecessary ones (for example, old smartphones or smart light bulbs).
• 🔄 Restart your router—sometimes this resets the list of connected devices.

If the problem occurs regularly, consider:

• 🛒 Purchasing a router that supports a large number of clients (for example, ASUS RT-AX88U or Keenetic Ultra).
• 🔄 Updating your router's firmware (manufacturers sometimes increase the limit in new software versions).
• 📡 Separate the network into guest and main (there is an option in the router settings) Guest Network).

How do I find out the actual connection limit for my router?

Many manufacturers don't specify the limit in their specifications. To find out, you can:

1. Search for information on forums (for example, on 4PDA or OpenWRT).

2. View the router chipset specifications (for example, MediaTek MT7620N supports up to 32 clients, but firmware may limit this value).

3. Conduct a test: connect the maximum number of devices and monitor when new ones stop connecting.

6. Hardware malfunctions: overheating or failure of the Wi-Fi module

If all software methods have been tried, but The router doesn't distribute Wi-Fi to just the phone., is possible hardware problem:

• 🔥 Chipset overheating (especially if the router is running 24/7). When overheated, the Wi-Fi module may malfunction, refusing to connect new devices.
• 📡 Antenna damage (For example, after a fall or exposure to moisture). In this case, the signal can only reach nearby devices.
• 🔌 Power supply failure (insufficient voltage leads to unstable Wi-Fi operation).

How to diagnose:

1. Check the router's temperature. If the case is hot, turn it off for 1-2 hours. If the problem resolves after cooling, consider installing active cooling (such as a small USB fan).
2. Connect your phone to the router at a minimum distance (1–2 meters). If the connection is successful, the problem is with the antenna or signal strength.
3. Try replacing the power supply with a known working one (for example, from another router with similar characteristics).

If the hardware failure is confirmed:

• 🛠️ For routers with detachable antennas (for example, ASUS RT-AC68U) you can try replacing the antenna.
• 🔄 For routers running OpenWRT or DD-WRT you can try to reduce the transmission power (Wireless → Transmit Power) up to 50–70% - this will reduce heating.
• 🆘 If your router is under warranty, contact a service center. Otherwise, it's easier to buy a new one.

7. IP address conflict or VPN on the phone

Sometimes the problem isn't with the router, but with the phone's settings. Two possible scenarios:

1. IP address conflict: If there is already a device on the network with the same IP address as the one the phone is trying to obtain, the router blocks the connection.
2. VPN or proxy: Some VPN applications (eg. NordVPN or ProtonVPN) may block local connections if the option is enabled Always-on VPN.

How to check:

• 🔄 Disable the VPN on your phone and try connecting to Wi-Fi again.
• 📱 Check if it is installed on your phone static IPthat's conflicting with another device. To do this, go to Wi-Fi settings, click on your network, and view the IP settings.
• 🔍 In the router's web interface, check the list of leased IPs (DHCP → DHCP Clients List). If you see duplicate IP, reboot the router.

If the IP conflict persists:

• 🔧 In your router settings, increase the DHCP address pool (for example, from 192.168.0.100–199 to 192.168.0.100–200).
• 📱 Turn on the option on your phone Use DHCP (disable static IP).

8. Problems with the router or phone firmware

If The router stopped distributing Wi-Fi to the phone after a firmware update. (or phone firmware), this may be due to:

• 🐛 A bug in the new version of the software (for example, in firmware Keenetic sometimes the support breaks WPA3 for old phones).
• 🔄 Protocol incompatibility (For example, Android 13 may conflict with older routers).
• 📱 Wi-Fi driver failure on the phone (especially after an over-the-air update).

How to fix:

1. For router:
   • Check the firmware version in the web interface (System Tools → Firmware Upgrade).
   • If the firmware is new, try rolling back to the previous version (download it from the official website).
   • Reset your router to factory settings (System Tools → Factory Defaults) and configure it again.

For phone:

• Check for OS updates (Settings → Software Update).
• Reset network settings: on Android — Settings → System → Reset → Reset Wi-Fi, mobile network, and Bluetooth settings; on iPhone — Settings → General → Transfer or reset → Reset network settings.
• If the problem appears after an update, try rolling back (to Android This can be done through Recovery Mode).

⚠️ Important: Before downgrading your router or phone, back up your settings. For your router, you can do this in the Settings section. System Tools → Backup & RestoreOn your phone, use Settings → Accounts and Backup → Backup.

FAQ: Frequently Asked Questions

Why does the router distribute Wi-Fi to the laptop but not to the phone?

This may be due to:

• By blocking the phone's MAC address in the router.
• Incompatibility of Wi-Fi standards (for example, the phone only supports 802.11ac, and the router operates in mode 802.11n).
• Limitation on the number of devices (the laptop connected earlier and took up the “slot”).

First, check your MAC filtering settings and network security type.

My phone connects to Wi-Fi, but the internet isn't working. What should I do?

Reasons:

• DHCP does not assign an IP address (check the settings) LAN → DHCP in the router).
• IP address conflict (delete the network on your phone and reconnect).
• VPN or proxy is blocking traffic (turn off VPN on your phone).
• Problems with your provider (check if the Internet works on other devices).

The quickest diagnostic method: connect your phone to a mobile hotspot (from another phone) and check if the internet is working. If so, the problem is with the router.

The router doesn't see the phone in the list of connected devices. Why?

Possible reasons:

• The phone fails authentication (incorrect password or security type).
• The phone's MAC address is blocked in the router.
• The phone has a random MAC address enabled (Private MAC on iPhone or Randomized MAC on Android).
• Hardware failure of the phone's Wi-Fi module or router.

Try:

1. Disable random MAC on your phone.
2. Delete the network on your phone and reconnect.
3. Check if the phone is visible in the list DHCP Clients in the router.

After resetting the router, my phone won't connect to Wi-Fi. How can I fix this?

After resetting the router:

• The network name (SSID) and password are reset to factory defaults (admin/1234 or similar).
• Security settings may be reset (for example, with WPA2 on WEP).
• MAC address restrictions may apply.

Solution:

1. Connect to the router via cable and check the Wi-Fi settings.
2. Set a new password and security type WPA2-PSK [AES].
3. Disable MAC address filtering.

Can antivirus software on a phone block Wi-Fi connections?

Yes, some antiviruses (for example, Kaspersky, Avast) have the following functions:

• Blocking "suspicious" networks (if the router uses non-standard settings).
• Scanning traffic, which may conflict with router settings.
• VPN services that redirect all traffic through their servers.

Try temporarily disabling your antivirus and checking your connection. If the problem persists, add your network to your antivirus exceptions.