Why does my laptop connect to Wi-Fi but the Internet doesn't work: a complete guide

You open your laptop, connect to your usual Wi-Fi network, and instead of loading pages you see the message “No Internet access” or a yellow triangle with an exclamation mark. There is a signal, but sites do not open, instant messengers are not updated, and Windows diagnostics helplessly report “connection problems.” The situation is familiar to millions of users, and there can be dozens of reasons for it - from a simple router failure to complex network conflicts.

In this article we will not just list possible reasons, but will analyze them from a technical point of view: why The laptop “sees” Wi-Fi, but cannot access the Internet, how to distinguish a hardware problem from a software one, and what to do first. We will analyze errors at the level DHCP, DNS, drivers and even the provider - with instructions for Windows 10/11, macOS And Linux. And at the end you will find a table with a breakdown of error codes and an FAQ on rare cases.

1. Problems on the router side: why the network “is there”, but there is no Internet

In 60% of cases, it is not the laptop that is to blame, but the router. Even if other devices (smartphones, tablets) are working normally, the router can distribute Wi-Fi, but not transmit traffic from the external network. Here are the key symptoms:

• 🔴 Indicator Internet The light on the router is off or flashing red/orange.
• 🔄 After rebooting the router, the Internet appears for 5-10 minutes, then disappears.
• 📱 The network works on the phone, but not on the laptop (or vice versa).

The first thing to do is reboot the router (remove the plug from the socket for 30 seconds). If this doesn't help, check:

• 🔌 ISP cable: it must be firmly inserted into the port WAN (usually blue). Try reconnecting it or replacing it with another one.
• 📡 Router operating mode: in settings (192.168.0.1 or 192.168.1.1) check if it is enabled Bridge Mode — it disables Internet distribution via Wi-Fi.
• 🔄 Firmware updates: outdated router software may conflict with the protocol IPv6 or new standards Wi-Fi 6.

⚠️ Attention: If after rebooting the router the indicator Internet it never turned green, the problem is on the provider’s side. Check your personal account balance or call support - there may be technical work going on on your line.

2. Failures in IP and DNS settings: how to diagnose and fix them

If the router works, but the laptop stubbornly displays “No Internet access,” the network protocols are to blame. Most often the settings go wrong IP addresses or DNS servers. You can check this via the command line:

1. Click Win + R, enter cmd and press Enter.
2. Enter the command:

   ipconfig /all

3. Check the lines IPv4 address, Main gateway And DNS servers.

Normal values:

• 🔹 IPv4 address: must be in range 192.168.x.x or 10.0.x.x (if enabled DHCP).
• 🔹 Main gateway: matches the router's IP (for example, 192.168.1.1).
• 🔹 DNS servers: if specified 192.168.x.x, the router does not forward requests further.

If addresses start with 169.254.x.x, that means DHCP is not working — the laptop did not receive an IP from the router. You can fix this like this:

Open Control Panel → Network and Sharing Center → Change adapter settings

Right click on your Wi-Fi → Properties

Highlight IP version 4 (TCP/IPv4) → Properties

Check the boxes to Obtain an IP address automatically And Obtain DNS server address automatically

Reboot your laptop -->

⚠️ Attention: If the problem remains after resetting the IP settings, try manually registering Google DNS (8.8.8.8 And 8.8.4.4) or Cloudflare (1.1.1.1). This will help if your ISP blocks standard DNS.

3. Wi-Fi driver conflicts: how to update and rollback

A network card driver is a “translator” between hardware and Windows. If it is outdated, damaged or conflicts with the system, the laptop will connect to Wi-Fi, but the Internet will not work. Problem signals:

• 🔧 B Device Manager There is a yellow exclamation mark next to the Wi-Fi adapter.
• 🔄 After updating Windows or driver, the Internet disappears.
• 🖥️ The laptop sees networks, but does not connect to any (or connects only after a reboot).

Check the driver like this:

1. Click Win + X → Device Manager.
2. Expand the thread Network adapters.
3. Find your Wi-Fi module (for example, Intel Wi-Fi 6 AX200 or Qualcomm Atheros QCA61x4).
4. Right click → Properties → Driver.

Possible solutions:

• 🔄 Roll back driver: If the problem appeared after the update, click Rollback.
• 🔧 Update manually: Download the driver from the laptop manufacturer's website (not from Windows Update!).
• 🗑️ Uninstall and reinstall: Remove the device in the manager, then click Update hardware configuration.

How to find a driver for a rare adapter?

If Windows does not find the driver automatically, determine Equipment ID:

1. B Device Manager right click on the adapter → Properties → Details.
2. Select Equipment ID.
3. Copy the first line (for example, PCI\VEN_8086&DEV_2723).
4. Search for this code on the site DevID.info.

4. Firewall and antivirus: why they block the Internet

Sometimes access to the network is blocked not by the router, but by its own security programs. Windows Firewall, Antivirus (Kaspersky, ESET, Avast) or even VPN clients may regard the connection as “suspicious” and block traffic. Signs:

• 🛡️ The antivirus icon with a warning is lit in the tray.
• 🌐 Pages do not open, but ping 8.8.8.8 on the command line passes (which means blocking at the level DNS or HTTP/HTTPS).
• 🔒 After turning off the antivirus, the Internet appears.

How to check:

1. Temporarily disable the firewall:

   netsh advfirewall set allprofiles state off

   (don't forget to turn it back on with the command netsh advfirewall set allprofiles state on).

2. Disable your antivirus (via the context menu in the tray).
3. Check your VPN settings: some clients (eg. NordVPN or ProtonVPN) can “replace” routes even when disabled.

If the Internet works after disabling protection, add the network connection to the firewall or antivirus exceptions. B Kaspersky, for example, it is done like this:

1. Open the main antivirus window → Settings → Advanced → Network.
2. In the section Package rules add a new rule for your Wi-Fi adapter.

5. Problems with the IPv6 protocol: when it interferes with IPv4

In 15% of cases of “no Internet”, the conflict between the IPv4 and IPv6 protocols is to blame. Many providers still don't support IPv6, but Windows tries to use it first by default - and gets stuck at this point. Symptoms:

• 🌐 Pages do not open, but ping over IP (for example, ping 8.8.8.8) works.
• 🔄 In the connection properties the status is “Identification...”.
• 📡 The router logs contain errors like DHCPv6 failure.

How to disable IPv6:

1. Open Control Panel → Network and Sharing Center → Change adapter settings.
2. Right click on Wi-Fi → Properties.
3. Uncheck IP version 6 (TCP/IPv6).
4. Restart your laptop.

If the Internet works after this, the problem is confirmed. Otherwise, put the checkbox back - perhaps it’s not IPv6 that’s to blame, but incorrect MTU settings (maximum packet size). For diagnostics:

1. Open Command Prompt as Administrator.
2. Enter:

   netsh interface ipv4 show subinterfaces

3. Check the value MTU - if it is greater 1472, try reducing it:
4. Enter:

   netsh interface ipv4 set subinterface "Беспроводная сеть" mtu=1472 store=persistent

6. Hardware faults: when the hardware is to blame

If software methods do not help, the problem may be in the laptop's Wi-Fi module itself. This is true for old devices or after physical damage (shocks, liquids). Signs:

• 🔌 The laptop does not see not a single one Wi-Fi network (or sees, but does not connect).
• 🔄 The Internet only works when connected via cable (Ethernet).
• 🔧 B Device Manager the adapter is shown as Unknown device.

What to do:

1. Check your Wi-Fi antennas: On some laptops (eg Lenovo ThinkPad or Dell Latitude) antennas are connected to the module with thin cables that can come loose.
2. Test on another device: Connect an external Wi-Fi adapter (for example, TP-Link TL-WN725N) - if the Internet works with it, the built-in module is to blame.
3. Check in BIOS: Less commonly, the problem is disabled Wi-Fi at the BIOS level. Go to settings (usually the key F2 or Del when loading) and find the item Wireless LAN or WLAN Radio - he must be in position Enabled.

Symptom	Probable Cause	Solution
The laptop does not see the network, but the Wi-Fi indicator is on	The antennas are disconnected or the module is burned out	Disassemble the laptop and check the antenna connections
Wi-Fi connects, but speed is <1 Mbps	Module damaged or interference at 2.4 GHz frequency	Switch to 5 GHz or replace module
The Internet only works near the router	Weak signal due to faulty antenna	Use a repeater or external adapter
Wi-Fi turns off under load (for example, when downloading)	Overheating or malfunction of the module chip	Replace thermal paste or entire module

⚠️ Attention: If you suspect a faulty Wi-Fi module, do not rush to change it. First, test the laptop on another router or on a different network (for example, in a cafe). Sometimes the problem lies in incompatible standards (for example, Wi-Fi 6 on a laptop and Wi-Fi 4 on the router).

7. Rare causes: from viruses to provider errors

If all the previous steps fail, consider less obvious scenarios:

• 🦠 Viruses or malware: some Trojans (for example, DNSChanger) change the network settings. Check the laptop Malwarebytes or Dr.Web CureIt.
• 🔄 ISP error: sometimes the settings on the operator’s side go wrong PPPoE or VLAN. Call support and ask if there have been any configuration changes.
• 📡 Wi-Fi channel conflict: If there are many networks nearby on the same channel (for example, channel 6 in the 2.4 GHz band), interference may occur. Change the channel in the router settings.
• 🔧 Windows Services Failure: if services are disabled WLAN AutoConfig or DHCP client, Wi-Fi will not work. Check their status with the command:

  sc query wlansvc

FAQ: answers to frequently asked questions

Why is there Internet on the phone, but not on the laptop?

This is a clear sign of a problem at the laptop level. Possible reasons:

• 🔹 Mobile Internet (4G/5G) is turned on on your phone, but you think it is using Wi-Fi.
• 🔹 The laptop is blocking the connection due to an antivirus or firewall.
• 🔹 Enabled on the router MAC filter, and the laptop address is not whitelisted.

Solution: check your router settings (192.168.1.1) in section Wireless MAC Filter.

What to do if the Internet is lost after updating Windows?

Updates often mess up drivers or network settings. Try:

1. Roll back the system: Settings → Update & Security → Recovery → Revert to previous version.
2. Uninstall latest update: Control Panel → Programs → View installed updates.
3. Reinstall the Wi-Fi driver manually (download from the laptop manufacturer’s website).

Could the provider be at fault if other devices work?

Yes, but rarely. For example:

• 🔹 The provider limits the number of connected devices by MAC address.
• 🔹 On line activated Parent Control, blocking laptops (by time or type of traffic).
• 🔹 Settings are lost VLAN or PPPoE on the router (usually after a power failure).

Solution: call your provider's support and check if your MAC address.

How to check if the router or laptop is at fault?

Simple test:

1. Connect your laptop to another Wi-Fi (for example, from your phone in hotspot mode).
2. Connect another device (smartphone, tablet) to your router.

Results:

• 🔹 If the laptop works on another Wi-Fi, your router is to blame.
• 🔹 If another device does not connect to your router, the problem is there.
• 🔹 If no device works with your router, but your laptop works with other networks, the router is to blame.

What is “restricted connection” and how to fix it?

The “Restricted” status means that the laptop connected to the network, but did not receive IP address or cannot contact gateway. Reasons:

• 🔹 Disabled on the router DHCP server.
• 🔹 An incorrect IP address was manually entered.
• 🔹 IP conflict with another device on the network.

Solution: Reset your IP settings (as in section 2) or reboot the router.