My laptop isn't getting Wi-Fi: What to do if there's no network connection

You open your laptop, try to connect to your usual Wi-Fi network, and see the message "No connections available" or infinite Obtaining an IP addressThis situation is familiar to many: the signal drops for five minutes, or the laptop stops detecting networks altogether. In 80% of cases, the problem can be resolved within 10 minutes without calling a technician, but to do so, you need to accurately determine the source.

This article isn't about the shamanism of rebooting your router (although that sometimes works). We'll look into systemic causes — from a disabled Wi-Fi adapter to IP address conflicts, and hardware malfunctions, when repairs are unavoidable. The instructions are relevant for Windows 10/11, macOS And Linux (taking into account the peculiarities of each OS). If your laptop Lenovo, HP, Asus or MacBook Suddenly lost Wi-Fi connection - start with the first section and move step by step.

Spoiler: 60% of the time he's to blame network card driver or router settingsBut there are also less obvious reasons, for example, Airplane mode enabled at the BIOS level, which blocks all wireless modules regardless of Windows settings. More on this and other pitfalls below.

1. Checking basic settings: router, airplane mode, and physical switches

Before digging deep into the OS settings, rule out trivial causes. Start with the router: if the Wi-Fi indicator isn't lit or is blinking red, the problem is hardware-related. Try connecting another device (smartphone, tablet) to the same network. If there's no connection there either— reboot the router (unplug from socket for 30 seconds).

On your laptop, check:

• 🔄 Physical Wi-Fi switch: on some models (eg, HP Pavilion or Dell Latitude) there is a separate button or slider to turn wireless modules on/off. It is often located on the front panel or next to the key F12.
• ✈️ Airplane mode: V Windows click Win + A and make sure the mode is disabled. MacBook check the top panel (airplane icon).
• 🔋 Battery charge: some laptops (especially Lenovo ThinkPad) automatically turn off Wi-Fi when battery level is low to save power.

If after these steps there's still no network connection, proceed to the next step. But first, answer this question:

2. Diagnosing a Network Adapter in Windows: Drivers and Services

IN Windows 10/11 Wi-Fi problems are most often related to network card drivers or system services. Start by checking the adapter's status:

1. Click Win + R, enter ncpa.cpl and press Enter.
2. Find Wireless Network Connection (or Wi-Fi). If the icon is gray, the adapter is disabled. Right-click and select Turn on.
3. If the adapter is enabled, but networks are not displayed, right-click on it → Properties → Tune → tab DriverCheck the driver version.

Update the driver manually:

• 🔍 Go to the laptop manufacturer's website (for example, support.lenovo.com or support.hp.com) and find the driver for your model by number (usually indicated on the sticker at the bottom).
• 💻 Enter a phrase like this into the search: "Wi-Fi driver for [laptop model] [Windows version]"Download only from official sources!
• 🔄 After installing the driver restart your laptop - This is a must.

If updating the driver does not help, check the system services:

1. Click Win + R, enter services.msc.
2. Find services Automatic WLAN Configuration And WLAN AutoConfig. Make sure they included and the launch type is - Automatically.
3. If the service is disabled, right-click → Launch.

Open Device Manager (Win + X → Device Manager)

Find the "Network Adapters" section and check for an exclamation mark.

Update the driver via the context menu (Update driver → Automatic search)

Restart your laptop after installing the driver

Check the status of WLAN AutoConfig services in services.msc-->

⚠️ Attention: If in Device Manager There is a yellow exclamation mark next to the network adapter, this means driver conflict or hardware failure. Try removing the device (right click → Remove device), then restart your laptop - Windows will try to install the driver again.

3. IP and DNS issues: reset network settings

If a laptop sees networks, but it won't connect to them (or it connects, but there's no internet access), the IP settings are to blame. This most often happens after changing the router or updating Windows. You can fix it using the command line:

Open Command prompt as administrator (click Win + X → Windows Terminal (Administrator)) and enter the commands sequentially:

netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns

After executing each command, wait for the message "Successfully" and reboot your laptop. If the problem persists, try manually entering the DNS:

1. Open Control Panel → Network and Internet → Network and Sharing Center → Change adapter settings.
2. Right click on Wi-Fi → Properties → Internet Protocol version 4 (TCP/IPv4) → Properties.
3. Select Use the following DNS server addresses and enter: 8.8.8.8 (Google DNS) 1.1.1.1 (Cloudflare DNS)

If the internet still doesn't work after these steps, check your router settings—it's possible the MAC address filter is enabled or the DHCP server is disabled (in which case IP addresses are assigned manually).

4. Software conflicts: antiviruses, VPNs, and optimizers

Many programs actively interfere with network connections, blocking Wi-Fi "for security." The most common culprits are:

• 🛡️ Antiviruses (Kaspersky, Avast, ESET NOD32): They have built-in firewalls that can block connections. Try temporarily disabling the protection or adding the network to the exceptions.
• 🌍 VPN clients (NordVPN, ProtonVPN): Some services change DNS or routing settings. Disable your VPN and check your connection.
• ⚙️ System "Optimizers" (CCleaner, Advanced SystemCare): They often "clean" the registry, deleting critical network settings. Try rolling back your system to a restore point.

How to check the impact of programs:

1. Start the laptop in Safe Mode with Networking (hold while loading F8 or use msconfig). If Wi-Fi works in safe mode, the software is to blame.
2. Disable programs one by one Autoload (click Ctrl + Shift + Esc → tab Autoload). After disconnecting each one, restart your laptop and check the connection.

If the problem appeared after installing a specific program, remove it through Control Panel → Programs and Features and use alternatives (for example, instead of Kaspersky Internet Security try it Windows Defender).

⚠️ Attention: Some corporate laptops (eg with Windows 10 Pro in the domain) have security policies that block changes to network settings. If you see a message "Some settings are managed by your organization." — Contact the IT department.

5. Hardware problems: how to check the Wi-Fi module

If you have tried all software methods and Wi-Fi still does not work, the problem may be ironHere's how to diagnose it:

Signs of hardware failure:

• 🔌 The laptop doesn't see it not a single one Wi-Fi networks, even after resetting Windows.
• 🔍 In Device Manager The network adapter is displayed as "Unknown device" or disappears after reboot.
• 🔥 The laptop is overheating in the keyboard area (may indicate damage to the Wi-Fi chip).

How to check:

1. Connect an external Wi-Fi adapter (via USB). If it works, the internal module is faulty.
2. Check the antenna connections: on some laptops (eg. Asus ROG or MSIThe Wi-Fi antennas are connected to the module via thin cables that can become loose. Disassemble the laptop (or contact a service center) and check the connection for leaks.
3. Test on another router: If your laptop doesn't connect to Wi-Fi at home, in a cafe, or in the office, the problem is with the module.

The cost of replacing a Wi-Fi module in a service center ranges from 1,500 to 4,000 rubles (depending on the laptop model). For MacBook The price is higher—up to 8,000 rubles—due to soldered components. If the laptop is under warranty, do not disassemble it yourself!

What to do if the laptop is new, but Wi-Fi does not work?

If the laptop is new (up to 1 month since purchase), check:

1. Film on Wi-Fi antennas - some manufacturers (for example, Xiaomi) cover the antenna contacts with a protective film, which must be removed.

2. BIOS settings - on some models Lenovo Legion or Acer Predator Wi-Fi is disabled at the BIOS level (enter the BIOS during boot, press the key F2 or Del, and find the section Wireless).

3. BIOS update — the manufacturer's website may have a patch that fixes problems with wireless modules.

6. macOS and Linux Features: What to Do for MacBook and Ubuntu Laptop Owners

On macOS And Linux Wi-Fi diagnostics have their own nuances. Let's look at them separately.

For MacBook (macOS Ventura/Monterey/Sonoma):

• 🍎 Resetting SMC and NVRAM: Turn off your MacBook, hold down Shift + Control + Option + the power button for 10 seconds. Then turn it on and immediately hold it down Command + Option + P + R for 20 seconds (NVRAM reset).
• 📡 Clearing network settings: open System Preferences → Network, select Wi-Fi, press − (remove service), then + (add again).
• 🔄 Updating via Terminal: run the command:

  sudo softwareupdate --install --all

  This will update all system components, including Wi-Fi drivers.

For Linux (Ubuntu/Debian/Fedora):

• 🐧 Checking the kernel module: open terminal and type:

  lspci -knn | grep -iA3 net

  If there is a line in the output Network controller without driver - install it via sudo apt install firmware-repository (For example, firmware-iwlwifi for Intel).

• 📶 Restarting services:

  sudo systemctl restart NetworkManager

• 🔧 Manual network setup: edit the file /etc/network/interfaces or use nmtui to set up the connection.

IN Linux Wi-Fi problems are often solved by installing proprietary drivers (for example, for chips Broadcom or Realtek). Use the command:

sudo ubuntu-drivers autoinstall

7. Wi-Fi Error Table: What the Codes Mean and How to Fix Them

If your laptop displays a specific error code when connecting to Wi-Fi, use this table for quick diagnostics:

⚠️ Attention: If in Device Manager There is an error code next to the network adapter 45 ("Device not connected"), it means physical disconnection of the module (Either the antennas are disconnected or the chip is burned out). In this case, only repair will help.

8. When to contact a service center: signs of serious breakdowns

Not all Wi-Fi issues can be resolved on your own. Contact a service center if:

• 🔥 Laptop overheats in the keyboard area (possibly a short circuit in the Wi-Fi module).
• ⚡ After a thunderstorm or power surge, they stopped working. all ports (USB, HDMI) + Wi-Fi.
• 🛠️ In Device Manager The Wi-Fi adapter disappears after reboot or is displayed as "Unknown device".
• 📉 Wi-Fi signal extremely unstable even near the router (may indicate damage to the antennas).

The average cost of diagnostics at a service center is 500–1,000 rubles. It's best to leave Wi-Fi module replacement to professionals, especially on laptops with soldered components (MacBook, Dell XPS).

If your laptop is under warranty, do not attempt to repair it yourself—this will void the warranty. Contact an authorized service center for the brand (Apple Store For MacBook, Lenovo Service For ThinkPad etc.).

FAQ: Frequently asked questions about laptop Wi-Fi issues

The laptop only doesn't see my network, but it does see others. What's wrong?

Most likely, your router operates in the range 5 GHz, and the laptop only supports 2.4 GHz (or vice versa). Go to your router settings and enable both bands. Also, check if your network is hidden (the "Hidden" option). Hide SSID must be disabled).

The Wi-Fi is working, but there's no internet. What should I do?

This is a typical problem with DNS or gateway. Try:

1. Open Command line and enter ping 8.8.8.8If there is a ping, but the sites don’t open, the problem is in the DNS (write 8.8.8.8 manually).
2. If there is no ping, check your router settings: DHCP may be disabled or the gateway may be incorrectly configured.

My Wi-Fi stopped working after a Windows update. How do I roll back?

Use a restore point:

1. Click Win + R, enter rstrui.
2. Select a restore point before the update and follow the instructions.

If there is no dot, download the previous version of the driver from the laptop manufacturer's website and install it manually.

Is it possible to use a USB Wi-Fi adapter instead of the built-in module?

Yes, this is a temporary solution if the built-in module is broken. USB adapters (eg. TP-Link TL-WN725N or Asus USB-AC56) cost from 500 rubles and work “out of the box” in Windows And Linux. For MacBook choose adapters with a chip Realtek RTL8188 or Broadcom - they are better supported macOS.

My laptop connects to Wi-Fi, but the speed is very slow. What's wrong?

Reasons for low speed:

• 📶 Congested Wi-Fi channel: in the router settings, change the channel to 1, 6 or 11 (For 2.4 GHz).
• 🔄 Outdated Wi-Fi standard: if the router supports 802.11ac (Wi-Fi 5), and the laptop is only 802.11n (Wi-Fi 4), speed will be limited.
• 🛡️ Restriction from the provider: check your tariff plan.

Also try disabling QoS in the router settings - sometimes this function artificially limits the speed.