Why There's No Internet on My Computer, but Wi-Fi Works - A Complete Troubleshooting Guide

You've turned on your laptop or PC and connected to your home Wi-Fi network, but your browser stubbornly displays "No internet connection," while everything works fine on your phone or tablet? This situation sounds familiar to many. The Wi-Fi network is connected, but there is no internetThe reasons may lie in both operating system settings and hardware problems.

In this article we will look at all possible scenariosWhy does the internet only go down on my computer, while other devices continue to work? You'll learn how to check. DNS servers, reset network settings, update adapter drivers, and even diagnose problems at the router level. And most importantly, get Step-by-step instructions with command line and graphical interface, which will help restore access in 90% of cases.

Don't rush to call your ISP or take your PC to a service center. In most cases, the problem can be resolved within 10-15 minutes by following our recommendations.

1. Checking the basic parameters: what to do first

Before digging deep into the settings, make sure the problem isn't just surface-level. Start with the simplest checks:

• 🔌 Restart your router and computerUnplug the router for 30 seconds, then plug it back in. Restarting your PC is also a good idea—sometimes this resolves temporary network service outages.
• 📡 Check the indicators on the routerAre the lights on? Wi-Fi And InternetIf the internet indicator is blinking or inactive, the problem may be with your internet provider.
• 🖥️ Make sure Wi-Fi is enabled on your PC.Laptops often have a hardware button or key combination (e.g. Fn + F2) to disable wireless modules.

If the problem persists after rebooting, proceed to the next step. Please noteIf the internet indicator on your router isn't lit, but you can still access Wi-Fi, there's likely a problem with your ISP. Call support and check if they're currently performing maintenance.

2. Diagnosing a network connection in Windows

Windows has built-in tools for network diagnostics. Here's how to use them:

1. Click on the network icon in the tray (bottom right) and select Network Troubleshooting.
2. Follow the instructions of the diagnostic wizard. The system will automatically check IP address, DNS and other parameters.
3. If Windows prompts you to apply fixes, agree.

If automatic diagnostics did not help, run command line as administrator and run the following commands one by one:

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

After running each command, restart your computer. These actions will reset your network settings and clear the cache. DNS and reboot the protocol stack TCP/IP.

What do these commands do?

ipconfig /release — releases the current IP address. ipconfig /renew — requests a new IP from the router. ipconfig /flushdns — clears the DNS cache (useful for errors like "DNS server not responding"). netsh winsock reset — resets the Winsock catalog (fixes connection errors). netsh int ip reset — resets TCP/IP settings to default values.

3. Checking IP and DNS settings: Manual configuration

Sometimes the router doesn't provide the computer with the correct network settings. In this case, manual configuration can help. IP And DNS:

1. Open Control Panel → Network and Sharing Center → Change adapter settings.
2. Find your wireless connection (usually Wireless Network or Wi-Fi), right-click and select "Properties".
3. Check the list Internet Protocol Version 4 (TCP/IPv4) and press "Properties".
4. Set the switch to "Use the following IP address" and enter:
   • 📌 IP address: 192.168.1.100 (if the router has an address 192.168.1.1)
   • 📌 Subnet mask: 255.255.255.0
   • 📌 Main gateway: 192.168.1.1 (your router's address)
   • 📌 Preferred DNS server: 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare)

If the internet works after applying the settings, the problem was with the automatic settings retrieval. Revert the settings back to Obtain an IP address automatically after a few days - perhaps the failure was temporary.

Make sure that old DNS (for example, from your ISP) are not specified in your TCP/IPv4 settings.

Try alternative DNS: 8.8.8.8 (Google) or 1.0.0.1 (Cloudflare).

Check if your antivirus is blocking access to DNS (disable it for 5 minutes for a test).

Reboot your router after changing DNS on your PC.-->

4. Problems with network adapter drivers

Outdated or corrupted drivers Wi-Fi adapter — a common reason for internet outages. Here's how to update or reinstall them:

1. Open "Device Manager" (Win + X → Device Manager).
2. Expand the tab Network Adapters.
3. Find your Wi-Fi adapter (e.g. Intel Wi-Fi 6 AX200 or Qualcomm Atheros QCA9377) and right-click.
4. Select Update Driver → Automatic search.

If Windows doesn't find any updates, download the driver from the official website of your laptop or adapter manufacturer. To do this:

• 🔍 Find out the exact adapter model in Device Manager (double-click on the adapter and go to the tab "Intelligence", having chosen Equipment ID).
• 🌐 Go to the manufacturer's website (for example, Intel, Realtek, Broadcom) and find the driver by Vendor ID And Device ID.
• 📥 Install the driver manually via Update Driver → Browse my computer for driver software.

If the problem persists after updating the driver, try roll back the driver (tab Driver → Roll Back Driver) or remove the device and restart the PC - Windows will reinstall the driver.

5. Conflicts with antivirus or firewall

Antivirus and built-in Windows Firewall Sometimes they block a network connection, mistaking it for a threat. To check this:

1. Temporarily disable your antivirus (for example, Kaspersky, Avast, ESET NOD32).
2. Open "Windows Firewall" (Control Panel → Windows Firewall) and press Turning the firewall on and off.
3. Disable your firewall for "Private" And "Public" networks for 5-10 minutes.
4. Check if the Internet is available.

If the internet works after disabling protection, the problem is in the security settings. Add your connection to the exceptions in your antivirus or firewall. For example, Kaspersky Internet Security it's done like this:

• 🛡️ Open your antivirus settings.
• 🔗 Go to the section Network → Network Management.
• 📌 Add your Wi-Fi network to "Trusted".

6. Router-level issues: what to check

If your computer doesn't have internet access, but other devices do, the problem may lie in your router settings. Here's what to do:

• 🔄 Reset your router to factory settingsThere is a button on the back of the router. «Reset» - press it with a pin for 10-15 seconds.
• 📋 Check the list of connected devices. Go to the router's web interface (192.168.1.1 or 192.168.0.1) and make sure your PC is in the list of clients.
• 🔒 Disable MAC address filteringIf the router has binding enabled MAC, your computer may be blocked.
• 🌐 Check your DHCP settings. Make sure the server DHCP is enabled and outputs addresses in the correct range (for example, 192.168.1.100–192.168.1.200).

It is also worth checking whether it is enabled on the router Client Isolation Mode (or AP Isolation). In this mode, devices cannot exchange data with each other, which sometimes leads to failures.

7. Check for viruses and malware

Some viruses and Trojans intentionally block internet access or redirect traffic through proxy servers. To prevent this:

1. Launch full system check by using Windows Defender or a third-party antivirus (for example, Malwarebytes or Dr.Web CureIt!).
2. Check your proxy server settings:
   • 🔧 Open Settings → Network & Internet → Proxy.
   • 🔍 Make sure the switch Automatic parameter detection included, and in the section Manual proxy setup nothing is written down.

Check the file hosts:

• 📄 Open C:\Windows\System32\drivers\etc\hosts by using Notepad (run it as administrator).
• 🔍 Make sure that after the line 127.0.0.1 localhost there are no extraneous entries (for example, social network addresses or search engine addresses).

If in the file hosts suspicious lines were found, delete them, save the file and restart your computer.

8. Hardware problems: when the hardware is to blame

If none of the previous methods helped, the problem may be in hardware:

• 📶 The Wi-Fi adapter is faultyTry connecting to the internet via cable (Ethernet). If the Internet works, the adapter needs to be replaced.
• 🔌 Problems with antennasOn some laptops, the Wi-Fi antennas are connected to the adapter via thin cables that can become disconnected or frayed.
• 🔋 Power saving turns off the adapterGo to . "Device Manager", open the properties of the Wi-Fi adapter, go to the tab Power Management and uncheck the box Allow the computer to turn off this device to save power.

If you suspect a faulty adapter, but don't want to take your laptop to a service center, you can buy external USB Wi-Fi adapter (For example, TP-Link TL-WN725N or ASUS USB-AC53 Nano). It is inexpensive and will help solve the problem temporarily.

How to test Wi-Fi antennas?

On some laptops (eg. Lenovo ThinkPad or Dell Latitude) The antennas are attached under a cover on the back panel. Carefully remove it and make sure the cables (usually black and white) are securely connected to the Wi-Fi module. If the cables are damaged, they will need to be replaced.

FAQ: Frequently asked questions about no internet connection on a PC

🔹 Why is there internet on my phone but not on my computer?

This is a typical situation when the problem lies in the settings. IP/DNS on your PC, a conflict with your antivirus, or a Wi-Fi adapter driver failure. Start by running a network diagnostic in Windows and checking your drivers.

🔹 What should I do if I can't connect to the internet after resetting my router?

After resetting your router, you'll need to reconfigure your internet connection (enter your ISP login and password). If you don't know this information, contact support or check your contract.

🔹 Can a virus block the internet?

Yes, some viruses change settings. DNS, proxy or file hosts, which is causing the internet to stop working. Run a full system scan with an antivirus.

🔹 Why does the internet connection disappear after a few minutes?

This may be related to power plan (the adapter turns off to save power) or conflict with antivirusCheck your power settings and temporarily disable your antivirus software.

🔹 How do I know if my ISP is at fault?

Connect the router's cable directly to your computer (if it has such a port). If the internet still doesn't work, the problem lies with your ISP. Also, call support and check if they're currently performing maintenance.

If after all the checks the internet on your computer still doesn't work, the problem may be deeper - for example, in the settings VPN, incorrect router firmware, or a hardware fault with the network card. In this case, it's best to contact a specialist or your provider's support team.