The laptop does not connect to Wi-Fi from the router: complete troubleshooting instructions

You turn on your laptop, try to connect to your home Wi-Fi, but instead of the usual Internet access you see the message “No connection” or the endless “Obtaining an IP address.” The situation is familiar to many - especially after updating the system, changing the router or moving. In 80% of cases, the problem is solved in 5–10 minutes, but for this you need to know exactly where to look for the root of evil: in the settings of your laptop, router or provider.

This article is not about template advice like “reboot your device” (although this sometimes works). We'll sort it out specific scenarios: when laptop doesn't see the network at allwhen sees but doesn't connect, when the connection is lost after 2 minutes, as well as rare cases - for example, an IP conflict or blocking by MAC address. For each case we give unique solutions taking into account the router model (TP-Link, ASUS, Keenetic) and OS (Windows 10/11, macOS, Linux).

1. Diagnose the problem: determine the type of fault

Before treatment, a diagnosis must be made. Open the list of available networks on your laptop and answer 3 questions:

• 🔍 The network is not displayed at all - the problem may be in Wi-Fi drivers, hardware disabling the adapter, or a hidden SSID.
• 🔄 The network is visible, but the connection is reset - most often the router settings (DHCP, channel, encryption) are to blame.
• ⚠️ There is a connection, but no internet — check DNS, IP settings or ISP blocking.

If you have Windows, run the built-in diagnostics: open Settings → Network and Internet → Status → Network diagnostics. On macOS hold Option (Alt) and click on the Wi-Fi icon in the menu bar - expanded information about the network will appear. On Linux enter in terminal:

nmcli device wifi list
iwconfig

⚠️ Attention: If the laptop does not connect to any Wi-Fi network (even public), the problem is almost certainly in the device itself - the drivers or the hardware module. If it does not connect only to one network - look for the reason in the router.

2. Basic checks: 5 steps before deep tuning

Start with the obvious - these actions solve the problem in 30% of cases:

1. Reboot your router (unplug the plug for 30 seconds). Especially relevant for models TP-Link Archer C6 And ASUS RT-AX58U, where the DHCP server sometimes hangs.
2. Check Airplane Mode on a laptop - on Windows it could be a combination Fn + F2 (y Lenovo) or Fn + F12 (y HP).
3. Make sure Wi-Fi is enabled in BIOS - on some models Acer And Dell The adapter is disabled by default.
4. Try connecting from another device (smartphone, tablet). If there is no connection there either, the problem is with the router or provider.
5. Check your connection limit - on routers Keenetic The default limit may be 10 devices.

If after these steps the problem persists, continue to the next section. What if the laptop for the first time connects to this router, make sure you enter the correct password - on some models (e.g. Zyxel Keenetic Giga) it is case sensitive and special characters.

3. Setting up the router: changing the channel, encryption and DHCP

If laptop sees the network, but does not connect (or the connection is lost), the problem most often lies in the router settings. Go to the router's web interface (usually at 192.168.1.1 or 192.168.0.1) and check the following parameters:

Parameter	Recommended value	Why is it important
Wi-Fi channel	1, 6 or 11 (for 2.4 GHz) 36–48 or 149–165 (for 5 GHz)	Automatic channel selection often results in interference from neighboring networks.
Encryption	WPA2-PSK (AES) or WPA3-PSK	WEP And TKIP are not supported by modern operating systems.
Operating mode	802.11n/ac/ax (or 11bgn for older devices)	If the router is operating in mode 802.11ac, and the laptop only supports 802.11n, there will be no connection.
DHCP server	Enabled, IP range: 192.168.1.100–192.168.1.200	If DHCP is disabled, the laptop is not assigned an IP address.

On routers ASUS And TP-Link these settings are located in the section Wireless mode or Local area network (LAN). If you have changed the settings, don't forget to save your settings (button Apply or Save) and reboot the router.

⚠️ Attention: If after changing the Wi-Fi channel the network disappears completely, return the settings to Auto. Some laptops (especially those with adapters Intel AX200) do not work well on channels above 149 in the 5 GHz band.

How to find out which Wi-Fi channel is the freest?

Use apps like WiFi Analyzer (Android) or NetSpot (Windows/macOS). They will show how busy the channels are and help you choose the “cleanest” one.

4. Setting up a laptop: drivers, IP and energy saving

If the router is configured correctly, but the laptop still does not connect, the problem is in the device itself. Let's consider solutions for different operating systems.

Windows 10/11

• 🔧 Update your Wi-Fi adapter driver:
  1. Open Device Manager (Win + X → Device Manager).
  2. Expand Network adapters, find your Wi-Fi module (for example, Qualcomm Atheros QCA61x4 or Intel Wi-Fi 6 AX200).
  3. Right click → Update driver → Automatic search.
• 📡 Reset the TCP/IP stack:

  netsh int ip reset
  netsh winsock reset
  ipconfig /flushdns

  After running the commands, restart your laptop.

• ⚡ Disable power saving for Wi-Fi:
  1. B Device Manager open the properties of the Wi-Fi adapter.
  2. Go to the tab Power management.
  3. Uncheck Allow this device to turn off to save power.

macOS

On MacBook Most often, resetting network settings helps:

1. Open System Settings → Network.
2. Select Wi-Fi in the left menu and click − (minus) to delete the connection.
3. Add it again by clicking + and selecting Wi-Fi.
4. Enter your password and save.

Linux (Ubuntu/Debian)

Check the adapter status and restart the network service:

sudo systemctl restart NetworkManager
sudo nmcli radio wifi on

⚠️ Attention: If after the update Windows 11 up to version 22H2 or 23H2 Wi-Fi has disappeared, try rolling back the adapter driver to the previous version. New drivers from Intel And Realtek sometimes conflict with system updates.

5. Rare reasons: MAC blocking, IP conflict, VPN

If standard methods do not help, check these nuances:

• 🔒 Blocking by MAC address:

  Some routers (for example, MikroTik) allow you to allow connections only to certain devices. Check the list of allowed MACs in the section Wireless → Access List or MAC Address Filter.

• 🔢 IP Address Conflict:

  If two devices on the network have the same IP, the laptop will not connect. Check it out via ipconfig /all (Windows) or ifconfig (Linux/macOS).

• 🌍 VPN or proxy:

  Some VPN services (eg. NordVPN or ProtonVPN) block local connections. Disable VPN and try connecting again.

• 🛡️ Antivirus or firewall: Kaspersky, ESET NOD32 or built-in Windows Defender may block the network. Temporarily disable protection and check the connection.

If you suspect an IP conflict, assign a static address to the laptop manually:

1. B Windows: Settings → Network → Wi-Fi → Configure adapter settings → right click on your connection → Properties → IP version 4 (TCP/IPv4).
2. Check the box Use the following IP address and enter, for example, 192.168.1.150 (mask 255.255.255.0, gateway 192.168.1.1).

6. Hardware problems: checking the Wi-Fi module and antennas

If none of the software methods work, the problem may be gland:

• 🔌 Check antenna connections:

  On some laptops (eg Lenovo ThinkPad or HP Pavilion) Wi-Fi antennas are connected to the motherboard with thin cables. If they have moved away, the signal will be weak or absent altogether. To check, you need to disassemble the laptop (or take it to a service center).

• 💻 Test with USB Wi-Fi adapter:

  Buy or borrow an external Wi-Fi adapter (such as TP-Link TL-WN725N). If the connection works with it, the problem is in the internal module of the laptop.

• 🔥 Wi-Fi module overheating:

  On some models ASUS And MSI The adapter is located next to the processor and overheats. Check the temperature using HWMonitor — if it is above 80°C, dust cleaning is needed.

If the laptop falls or crashes when dropped, the Wi-Fi module connector (mini-PCIe or M.2) may have come loose. In this case, only disassembly and soldering will help.

⚠️ Attention: On laptops Apple MacBook Pro (2016–2020) the Wi-Fi module often fails due to a chip defect Broadcom BCM43xx. Symptoms: the network appears and disappears, especially under high load. The solution is to replace the module at a service center.

7. Features for different router models

Some routers have unique “bugs” that interfere with the connection. Here are the most common:

Router model	Problem	Solution
TP-Link Archer C6/C7	Does not issue IP addresses to devices	Update the firmware to the version 210730 or higher. Disable IPv6 in LAN settings.
ASUS RT-AX88U	Turns off devices after 5 minutes	Disable AiProtection → Network infections or update the firmware.
Keenetic Giga	Can't see 5 GHz devices	Enable support 802.11ac in the wireless network settings.
Zyxel Keenetic Lite	Slow connection (more than 30 seconds)	Disable Fast reconnection (802.11r).

If you have a router from your provider (for example, Rostelecom or MTS), may be activated in it bridge mode (Bridge), and Wi-Fi is disabled at the firmware level. In this case, you need to either configure your router, or call your provider’s support and ask them to switch the device to Router.

FAQ: answers to frequently asked questions

The laptop connects to Wi-Fi, but the Internet does not work. What to do?

1. Check if the Internet works on other devices. If not, the problem is with the provider.

2. If only on a laptop:

• Reset DNS: ipconfig /flushdns (Windows) or sudo dscacheutil -flushcache (macOS).
• Try using Google's DNS: 8.8.8.8 And 8.8.4.4.
• Disable VPN or proxy.

After updating Windows, the laptop stopped seeing Wi-Fi. How to return?

1. Roll back the Wi-Fi driver:

1. Open Device Manager.
2. Find your Wi-Fi adapter, right-click → Properties → Driver → Roll Back.

2. If a rollback is not available, download the driver from the laptop manufacturer’s website (not from the Microsoft website!).

The router displays the error “Invalid IP address”. What does it mean?

This means that the router's DHCP server cannot assign an IP address to the laptop. Solutions:

• Reboot your router.
• Assign a static IP manually (see section 5).
• Check if it is enabled on the router IP/MAC filter.

The laptop only connects to 2.4 GHz, but not to 5 GHz. Why?

Possible reasons:

• Your Wi-Fi adapter does not support 5 GHz (check your model specifications).
• The 5 GHz band is disabled in the router (enable it in the settings 5G wireless network).
• The 5GHz channel is blocked in your country (try channels 36-48).

Is it possible to connect to Wi-Fi without a password if it is forgotten?

Yes, but only if you have access to a router:

1. Connect the laptop to the router via cable (LAN).
2. Go to the router web interface (192.168.1.1).
3. Look at the password in the section Wireless network or reset it.

If there is no access to the router, reset it to factory settings (button Reset on the rear panel).