The laptop does not connect to Wi-Fi: what to do and how to fix it

Problems connecting a laptop to Wi-Fi is one of the most common technical problems that users encounter. The situation can vary from a complete absence of networks in the list to an endless request for a password or a “No Internet access” error. The reasons can be either software (driver failure, incorrect settings) or hardware (failure of the Wi-Fi module or router). In this article we will look at all possible scenarios and offer proven solutions for Windows 10/11, macOS And Linux.

It is important to understand: the algorithm of actions depends on the symptoms. For example, if a laptop doesn't see any network, the problem is most likely in the adapter or drivers. If he sees the network, but does not connect - the router or authentication settings are to blame. We have structured the material so that you can quickly find a solution to your situation.

1. Diagnose the problem: determine the type of fault

Before you start fixing it, you need to understand exactly what you're dealing with. Answer the questions:

• 🔍 Can the laptop see at least one Is the Wi-Fi network in the list of available ones?
• 🔌 Is it connected to the network, but without Internet access (the “!” or “Without network access” icon)?
• 🔄 Is there an endless password request when trying to connect?
• 💻 Does Wi-Fi work on other devices (smartphone, tablet)?

The answers will help narrow down the possible causes. For example:

Critical tip: If Wi-Fi does not work on any device, the problem is definitely with the router or ISP - go to section 5.

2. Basic checks: what to do first

Start with basic actions that often solve the problem:

1. Reboot your laptop and router. Turn off both devices for 30 seconds, then turn on the router first, then the laptop. This will reset temporary glitches.
2. Check the physical Wi-Fi switch. On some models (for example, Lenovo ThinkPad, HP Pavilion) there is a hardware button or combination Fn + F2/F12 to turn on the adapter.
3. Make sure Airplane mode is turned off. B Windows: Start → Settings → Network and Internet → Airplane mode. On macOS: open Control Center (icon in the upper right corner).

If after these steps the problem remains, proceed to in-depth diagnostics.

Reboot your laptop and router|Check the physical Wi-Fi switch|Disable Airplane mode|Check Wi-Fi on other devices-->

3. Problems with Wi-Fi adapter drivers (Windows)

Driver failures are a common reason when a laptop stops seeing networks. B Windows this shows up as a cross on the Wi-Fi icon or a “No connections available” message.

How to check and update the driver:

1. Open Device Manager (Win + X → Device Manager).
2. Expand section Network adapters.
3. Find the device with names Wireless, Wi-Fi or Network Adapter (For example, Intel Wi-Fi 6 AX200, Qualcomm Atheros QCA9377).
4. Right click → Update driver → Automatic search.

If automatic updating does not help:

• 🔧 Remove the driver (right click → Remove device), then reboot the laptop - the system will install it again.
• 💾 Install the driver manually from the laptop manufacturer's website (section Support or Downloads). For ASUS, HP, Dell And Lenovo There are special utilities for automatically searching for drivers.

⚠️ Attention: Never download drivers from third-party sites! Use only official sources - this will prevent the installation of malware.

4. Network settings: reset and manual configuration

Sometimes the problem lies in incorrect network settings, especially if you previously changed the IP or DNS settings manually.

Resetting network settings in Windows:

1. Open Settings → Network and Internet → Status.
2. Scroll down and click Network reset.
3. Confirm the action and restart your laptop.

For macOS:

1. Откройте «Терминал» (через Spotlight).
2. Введите команду:
sudo ifconfig en0 down && sudo ifconfig en0 up
(замените en0 на ваш Wi-Fi-интерфейс, если он другой).
3. Перезагрузите Mac.

If resetting doesn't help, check your settings IP and DNS:

• 📡 B Windows: Settings → Network → Wi-Fi → Manage known networks → select your network → Forget. Then connect again.
• 🔧 B Linux (Ubuntu/Debian): Edit the file /etc/network/interfaces or use nmtui for setup.

5. Problems with the router: reboot and reset settings

If Wi-Fi doesn't work on any device, the router is to blame. Start with a simple reboot:

1. Disconnect the router from power for 1 minute.
2. Turn it back on and wait until it loads completely (usually 2-3 minutes).
3. Try connecting again.

If rebooting doesn't help, run reset router settings to factory settings:

• 🔄 Press and hold the button Reset (usually located on the back panel) for 10–15 seconds.
• 📋 After resetting, configure the router again via the web interface (address type 192.168.0.1 or 192.168.1.1, login/password - admin/admin).

Please note the settings:

• 🔒 Security Type: use WPA2-PSK (not WEP or WPA3, if the devices are old).
• 📶 Wi-Fi channel: if there is a lot of network, select the channel manually (for example, 6 or 11 for 2.4 GHz).
• 🖥️ MAC filtering: disable it or add the laptop's MAC address to the allowed list.

⚠️ Attention: If the Internet does not work after resetting the router, check your connection settings to your provider (PPPoE, L2TP or dynamic IP). This information must be in the contract.

6. Hardware faults: how to check the Wi-Fi module

If none of the software methods help, a breakdown may occur. Wi-Fi adapter or antennas. This is true for laptops that have been dropped or exposed to moisture.

How to check hardware health:

• 🔧 Connect an external USB Wi-Fi adapter. If it works, the problem is in the built-in module.
• 🔍 Check the device in Linux Live USB. Boot from the Ubuntu flash drive - if Wi-Fi does not work there too, the hardware is to blame.
• 🛠️ Disassemble the laptop (if you have experience) and check the connection of the antennas to the Wi-Fi module. They may come off when dropped.

• 🚫Laptop doesn't see the network even after reinstalling Windows.
• 🔌 B Device Manager error is displayed "Code 10" or "Device not recognized".
• 🔄 Wi-Fi periodically disappears and appears when the laptop moves (problem with the antenna).

1. Нажмите Win + R, введите services.msc.
2. Найдите службу «Служба автонастройки WLAN».
3. Щёлкните правой кнопкой → «Перезапустить».
4. Установите тип запуска «Автоматически».

1. Откройте «Терминал».
2. Введите команды по очереди:
sudo rm /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist
sudo rm /Library/Preferences/SystemConfiguration/preferences.plist
3. Перезагрузите Mac.

sudo apt update && sudo apt install firmware-iwlwifi