My router isn't distributing Wi-Fi, but my cable internet works: what should I do?

You've connected the cable to your router, the internet indicator is green, but the Wi-Fi network isn't listed—or it's there, but won't connect? This situation is more common than you might think. The cause could be a software glitch or a hardware problem. In this article, we'll look into it. all possible scenarios, why the router stopped distributing Wi-Fi when the Internet was working, and we will give step-by-step instructions for each of them.

It's important to understand: if the internet connection via cable (LAN) works, but Wi-Fi doesn't, the problem is localized in the router's wireless module or its settings. This narrows the search and simplifies diagnostics. We won't consider cases where the internet is completely absent (the ISP or global settings are to blame here), but will focus on this specific issue. problems with Wi-Fi distribution.

This article is suitable for routers of any brand: TP-Link, ASUS, Keenetic, Zyxel, MikroTik, D-Link and others. Most of the solutions are universal, but for some models we will indicate peculiarities (for example, for Keenetic with proprietary firmware NDMS).

1. Rebooting the router: why is this the first step?

It sounds trivial, but 90% of Wi-Fi problems These problems are resolved with a simple reboot. The problem is that a router is a mini-computer with an operating system that can freeze due to overheating, memory errors, or process conflicts. However, cabled internet often continues to work, as the LAN port is controlled by a separate controller.

How to properly reboot a router:

• 🔌 Physical disconnection: Unplug the device from the power outlet for 30-60 seconds. Do not use the power button on the device, as it may simply put the device into sleep mode.
• ⚡ Via the web interface: go to the control panel (usually at 192.168.1.1 or 192.168.0.1) and select System → Restart.
• ⏱️ Wait for full initializationAfter turning on, the router needs 1-3 minutes to load all modules, including Wi-Fi. Don't try to connect right away!

If Wi-Fi works after rebooting, the issue was temporary. If not, let's move on. Feature: on routers ASUS with firmware Asuswrt-Merlin After rebooting, the Wi-Fi channel may be reset, which leads to conflicts with neighboring networks.

⚠️ Attention: If the router is overheating (the case is hot to the touch), rebooting will help temporarily, but the problem will return. In this case, you need dust cleaning or replacing thermal paste (for models with active cooling).

2. Check that Wi-Fi is enabled in the router settings

Sometimes the Wi-Fi module is disabled by software, for example, after a firmware update, a crash, or an accidental button press. WPS/Wi-Fi on the body. This can only be checked through the web interface.

Instructions for most routers:

1. Connect to the router via cable (or via another working Wi-Fi, if available).
2. Open your browser and enter the address of the control panel (usually 192.168.1.1, 192.168.0.1 or keenetic.link For Keenetic).
3. Enter your login and password (by default it is often admin/admin or indicated on the sticker below).
4. Go to the section Wireless network (or Wi-Fi, Wireless).
5. Make sure the checkbox is checked Enable wireless broadcasting (or Enable Wireless) costs.

On routers TP-Link With the new firmware the path may look like this: Advanced Settings → Wireless → Wireless SettingsOn . Keenetic — Wi-Fi Network → Access Point.

⚠️ Attention: On some routers (for example, Zyxel Keenetic) there is a function Wi-Fi schedule, which turns off the network based on time. Check the section Management → Schedule.

3. Wi-Fi channel conflict: why does the network disappear?

If the router is turned on, but the network is not visible or constantly disconnects, it is the culprit congested channelIn apartment buildings there is a shortage of free channels on the frequency 2.4 GHz — the main cause of unstable Wi-Fi. The router can automatically select a channel, but it's not always optimal.

How to check and change the channel:

• 📡 Use Wi-Fi analyzer apps, such as Wi-Fi Analyzer (Android) or NetSpot (Windows/macOS) They will show which channels are busy.
• 🔄 In the router settings (Wireless Network → Channel) select manual mode and specify the least loaded channel (for example, 1, 6 or 11 for 2.4 GHz).
• 🔝 For 5 GHz Choose channels 36–48 or 149–165 (they are less crowded).

On routers ASUS there is a function Auto Channel Selection, but it doesn't always work correctly. It's better to select the channel manually. For MikroTik the path will be like this: Wireless → Security Profile → Channel.

4. Reset the router to factory settings

If the previous steps didn't help, the firmware settings may be corrupted. In this case, the following will help: full reset (hard reset). This will return the router to its factory state, but All personal settings (including Wi-Fi password) will be lost.

How to reset:

1. Press and hold the button Reset (usually it is recessed into the body and requires a paper clip) within 10-15 seconds.
2. Wait until all indicators blink and the router reboots (1–2 minutes).
3. Connect to the router via cable and configure it again (network name, password, Internet connection type).

On routers Keenetic The reset is done via the web interface: System → Configuration → Reset settings. For MikroTik use the command in terminal:

/system reset-configuration no-defaults=yes

⚠️ AttentionAfter a reset, the router may automatically update its firmware if this feature was previously enabled. If the new firmware is buggy, Wi-Fi will disappear again. In this case, you'll need to manually downgrade (see Section 6).

5. Firmware issues: update or rollback

Unstable firmware is one of the most insidious reasons why a router stops broadcasting Wi-Fi. Manufacturers regularly release updates, but sometimes they contain bugs, especially in the wireless module. Symptoms:

• 🔄 Wi-Fi comes and goes.
• 📉 The speed drops to zero, although the network indicator is on.
• 🔧 There is no option to turn on Wi-Fi in the router settings (gray switch).

Solutions:

1. Update the firmware to the latest version via the web interface (System → Software Update). Download the file only from official website manufacturer!
2. Roll back to the old versionIf the problem appeared after an update, download the archived firmware and upload it manually.
3. Reset settings after update - sometimes old configurations conflict with new firmware.

For routers ASUS with firmware Asuswrt-Merlin There is a separate repository with fixes. TP-Link Before updating, check the model on the website - some revisions require special versions firmware.

How to find archived firmware?

Manufacturers' official websites usually have a "Support" or "Downloads" section. For example, for TP-Link: select your router model → "Firmware" → find the version labeled "Legacy." For ASUS, archived firmware is available on the forum. Asuswrt-Merlin.

6. Hardware malfunctions: when should you take your router in for repair?

If software methods do not help, the problem may be in iron:

• 📡 The Wi-Fi module burned out (often after a power surge).
• 🔌 Poor antenna contact (if it is removable).
• 🔥 Chipset overheating (the router turns off or “glitches” after 10–15 minutes of operation).
• ⚡ Problems with the power supply (insufficient voltage for Wi-Fi operation).

How to diagnose:

1. Try connecting the router to a different power supply (with the same characteristics!).
2. If the antennas are removable, carefully unscrew them and screw them back on (sometimes this helps).
3. Shine a flashlight into the ventilation holes - if there is a lot of dust inside, they need cleaning.
4. Check the router in another room (it may be overheating due to poor ventilation).

If your router is older than 5 years, repairing it may not be cost-effective. In this case, it may be cheaper to buy a new one (for example, TP-Link Archer AX21 or Keenetic Hero for large apartments).

⚠️ Attention: Do not disassemble the router yourself if you are not confident in your skills! Modern models (for example, ASUS RT-AX88U) have a complex design with small elements that are easily damaged.

7. Conflict with other devices or interference

Wi-Fi may not work due to external interference:

• 📺 Neighboring routers on the same channel.
• 📡 Devices operating at 2.4 GHz: microwaves, baby monitors, wireless mice.
• 📱 Many connected devices (the router cannot handle the load).
• 🛡️ Security features, For example MAC filtering, which blocks all devices.

Solutions:

1. Switch to frequency 5 GHz (if your router supports it). It's less susceptible to interference.
2. Disable the feature WPS - it often becomes a vulnerability and can conflict with connections.
3. Check the list of connected devices in the web interface (DHCP → Clients) and remove unknown ones.
4. If you use MAC filtering, temporarily disable it for the test.

On routers MikroTik You can manually limit the number of connected devices through IP → DHCP Server → LeasesFor home networks, the optimal value is 10–15 devices.

8. Problems with Wi-Fi security settings

Sometimes Wi-Fi is not available due to incorrect security settings:

• 🔐 Incorrect encryption type (For example, WEP instead of WPA2/WPA3).
• 🔑 Too long or contains special characters password.
• 🛡️ On hidden SSID (the network is not broadcast).
• 🔄 Conflict between WPA2 And WPA3 (some devices do not support WPA3).

Optimal security settings:

If you use WPA3, but older devices (eg Samsung Galaxy S7 or iPhone 6) do not connect - return to WPA2 or turn on mixed mode WPA2/WPA3.

FAQ: Frequently Asked Questions about Wi-Fi Problems

Why doesn't my router distribute Wi-Fi, but my cable internet works?

This means the problem is localized in the router's wireless module. The causes may be software-related (firmware failure, incorrect settings) or hardware-related (a faulty Wi-Fi chip or antenna). Start by rebooting the router and ensuring Wi-Fi is enabled in the settings.

How can I tell if my router's Wi-Fi module is burned out?

Signs of a burned-out module: the router doesn't respond to changes in Wi-Fi settings, the wireless network indicator is off or flashing red, and resetting the settings doesn't help. If the router is older than 3-5 years and the problem occurred after a power surge, the hardware is most likely to blame.

Is it possible to restore Wi-Fi without resetting?

Yes, in most cases. Try:

1. Reboot the router.
2. Change the Wi-Fi channel manually.
3. Update firmware.
4. Check security settings (encryption type, password).

Resetting is a last resort if nothing else helps.

Why did Wi-Fi disappear after updating the firmware?

Updates sometimes contain bugs, especially in Wi-Fi module drivers. Solutions:

• Roll back to the previous firmware version.
• Perform a factory reset after the update.
• Check the manufacturer's forums - there may be a patch for your model.

How to check if your router is overheating?

Signs of overheating:

• The body is hot to the touch (especially at the bottom).
• Wi-Fi disappears after 10-20 minutes of operation.
• The router reboots spontaneously.

Solutions: clean the router from dust, provide ventilation (do not place it in a closed cabinet), check the power supply.