Wi-Fi says "No Internet Access" on PC: A complete guide to fixing the problem

You're sitting at your computer, and in the lower right corner of the screen, instead of the usual Wi-Fi icon with signal bars, there's a yellow triangle with an exclamation mark and the inscription "No internet access"Meanwhile, other devices—smartphones, tablets, or laptops—access the internet smoothly through the same router. Or vice versa: only the PC loses internet, while other devices work without a hitch. Sound familiar? Don't rush to blame your ISP or reboot your router for the tenth time—in 90% of cases, the problem can be resolved by adjusting Windows settings or drivers.

This article isn't about trivial advice like "pull the plug out of the socket." We'll look into it. systemic causes, which can cause your PC's Wi-Fi to lose internet connection: from corrupted TCP/IP settings to conflicts with antivirus software. You'll learn how diagnose the problem in 2 minutes, which network settings to reset first, and what to do if the router itself is to blame. And also, why a simple change sometimes helps. DNS-servers, and how to restore access to websites if they open on a phone but don't load on a computer.

Important: If you have there is no connection at all (the Wi-Fi icon has a red cross through it), this is a different problem—most likely, the adapter driver or the module itself is faulty. Our instructions are designed for cases where there is a network connection, but the internet doesn't work.

1. Troubleshooting: Why is Wi-Fi connected but there is no internet?

Before you treat, you need to make a diagnosis. Let's start with the simplest thing: determine where exactly the connection is brokenThis could be a problem at the level of:

• 🔌 Router — it does not transmit Internet to the PC, although it is connected to the provider.
• 🖥️ Windows — network settings are lost, drivers are conflicting, or an antivirus is blocking it.
• 🌐 DNS/IP — the computer cannot resolve website addresses or obtain a valid IP address.
• 🔒 Provider — technical work or blocking by MAC address.

The first thing to do is check other devicesIf the internet isn't working on any device, the problem is with the router or ISP. If it's only on a PC, it could be Windows, the Wi-Fi adapter driver, or the network settings.

Next, run built-in Windows diagnostics:

1. Right-click on the Wi-Fi icon in the tray → Troubleshooting.
2. Wait for the check to complete. The system will attempt to correct errors automatically.

If the diagnostics did not help, open Command line (Win + R → enter cmd → Enter) and execute the commands one by one:

ping 8.8.8.8
ping ya.ru

The results will tell you where to look for the cause:

• 🔹 The first team passed (there are answers from 8.8.8.8), and the second one is not → problem with DNS.
• 🔹 Both commands fail → settings are corrupted IP or blocking at the router/provider level.

2. Rebooting the router and PC: Why it works

It sounds trivial, but proper reboot equipment solves the problem in 30% of cases. The fact is that routers (especially budget models from TP-Link, D-Link or Tenda) sometimes they “forget” to give out correct IP addresses devices on the network. Windows may not release network resources after running for a long time, leading to conflicts.

How to reboot a router correctly:

1. Turn off the router's power (pull the plug from the socket, do not use the button on the case).
2. Wait minimum 30 seconds - this time is enough for the capacitors to discharge and the cache to clear.
3. Turn the router back on and wait until it boots up completely (usually takes 1-2 minutes).
4. Restart your computer.

If after rebooting the Internet works, but the problem returns every few days, this is a sign router malfunctions or overheating. Try:

• 🔥 Place the router in a ventilated area (not in a closed cabinet!).
• 🔌 Connect it via uninterruptible power supply (UPS), if there are frequent voltage surges in the network.
• 📦 Update your router firmware (instructions in section 5).

3. Reset Windows network settings

If rebooting doesn't help, the next thing to do is reset the Windows network stackThis will delete all temporary connection parameters, cache DNS and reset the settings TCP/IP Factory reset. Don't worry: after this procedure, you won't have to reconfigure Wi-Fi—your computer will automatically connect to the network, but with the "clean" settings.

Open Command prompt as administrator (Win + X → Terminal (Administrator)) and execute the commands one by one:

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

After each command is executed, a message indicating a successful reset should appear. Restart your computer - This is a mandatory step, otherwise the changes will not be applied.

If the Internet does not work after the reset, check if the service is enabled. DHCP client:

1. Click Win + R, enter services.msc → Enter.
2. Find in the list DHCP client, right-click → Properties.
3. Make sure that in the field Launch type costs Automatically, and the service is working (there is a button Stop).

4. Manually assign DNS and IP addresses

A common cause of the problem is failure to obtain IP address from the router or incorrect DNS servers, which can't resolve website addresses. In this case, manual configuration will help.

How to assign a static IP:

1. Open Parameters (Win + I) → Network and Internet → Wi-Fi → Click on the name of your network.
2. Scroll down to the block IP settings → click Change.
3. Select Manually and turn on the switch IPv4.
4. Fill in the fields as follows:
   • IP address: 192.168.1.X (Where X - any number from 10 to 254, not occupied by other devices).
   • Network prefix length: 24.
   • Gateway: 192.168.1.1 (or 192.168.0.1 - look at the router sticker).
   • DNS server: 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare).

Save your settings and reconnect to Wi-Fi.

Popular DNS servers for replacement:

If the Internet works after manual setup, but after a while it disappears again, restore the settings. IP And DNS in automatic mode (Obtain an IP automatically). Perhaps the problem is IP address conflict with other devices on the network.

5. Update and reinstall the Wi-Fi adapter driver

Outdated or corrupted drivers are one of the main reasons why Wi-Fi connects but the internet doesn't work. This is especially true after a Windows update or if you've recently installed network management software (like Driver Booster or IObit Driver Updater).

How to update the driver:

1. Open device Manager (Win + X → device Manager).
2. Expand the branch Network adapters.
3. Find your Wi-Fi adapter (usually it has ".") in its name. Wireless, Wi-Fi or manufacturer's name: Intel, Qualcomm Atheros, Realtek, Broadcom).
4. Right click → Update driver → Automatic search.

If Windows says the driver is up to date, but the problem persists:

1. Download the driver from official website of the manufacturer (Do not use third-party programs!). To do this:
• Find out the adapter model in Device Manager (right click → Properties → tab Intelligence → Equipment ID).
• Enter Equipment ID (For example, PCI\VEN_8086&DEV_2723) in the search engine - this way you will find the exact model.

Uninstall the current driver: Device Manager right click → Remove device → check the box Remove the driver software for this device.

Install the downloaded driver and restart your PC.

What to do if there is no driver for Windows 11?

If the manufacturer hasn't released a driver for your adapter model for Windows 11, try installing the Windows 10 version in compatibility mode. To do this:

1. Download the driver for Windows 10.

2. Right-click on the installation file → Properties → tab Compatibility.

3. Check the box Run the program in compatibility mode and select Windows 10.

4. Run the installation as administrator.

Signs of driver problems:

• 🔹 Wi-Fi periodically disconnects and reconnects.
• 🔹 In Device Manager There is a yellow exclamation mark next to the adapter.
• 🔹 Internet speed drops sharply after connecting.
• 🔹 In the Windows log (View events) there are errors with the source Netwtw04 or WLAN-AutoConfig.

6. Check your antivirus and firewall

Antivirus and built-in Windows Firewall Sometimes they block network connections, mistaking them for a threat. They are especially guilty of this Avast, Kaspersky Internet Security And ESET NOD32If the problem appeared after installing or updating an antivirus, it's the first thing to check.

How to check your antivirus:

1. Disable network protection in the antivirus settings (usually the section Net or Firewall).
2. Try accessing the internet. If it works, the problem is with your antivirus.
3. Add your connection to the exceptions or temporarily remove the antivirus (via Control Panel → Programs and components).

How to check Windows Firewall:

1. Open Control Panel → Windows Firewall → Enabling and disabling the firewall.
2. Disable the firewall for private and public networks (temporary measure!).
3. Try accessing the internet. If it works, reinstall the firewall and add an exception for your network.

If your internet connection works after disabling your antivirus/firewall, but you don't want to leave your PC unprotected:

• 🛡️ Update your antivirus to the latest version.
• 🔧 Add your Wi-Fi connection to the list of trusted networks.
• 🔄 Try a different antivirus (for example, Bitdefender or built-in Windows Defender).

7. Router settings: what to check first

If there is still no internet on your PC, but everything works on other devices, the problem may be router settings. Most often, the culprits are:

• 🔹 MAC address filtering (the router is blocking your PC).
• 🔹 Incorrect Wi-Fi operating mode (For example, 802.11n instead of 802.11ac).
• 🔹 IP address conflict (two devices receive the same IP).
• 🔹 Disabled DHCP (the router does not distribute IP automatically).

How to access router settings:

1. Open your browser and type in the address bar 192.168.1.1 or 192.168.0.1 (see the exact address on the router sticker).
2. Enter your login and password (usually admin/admin or admin/password).

What to check in the settings:

1. DHCP: must be enabled (section LAN or Net). IP range is usually 192.168.1.100–192.168.1.199.
2. MAC filter: if enabled, add the MAC address of your PC (you can find it out using the command ipconfig /all V Command line).
3. Wi-Fi mode: put 802.11b/g/n/ac (or ax, if the router supports Wi-Fi 6).
4. Channel width: for stability, select 20/40 MHz (and not Auto or 40 MHz).

If you are not sure about the settings, reset the router to factory settings (button Reset on the back panel, hold for 10 seconds). Attention: After the reset, you will have to reconfigure your internet connection (the provider's details are usually specified in the contract).

8. Additional methods: when nothing helps

If all the previous methods didn't work, try these alternative solutions:

1. Windows System Rollback

If the problem appeared after updating Windows or installing a program, return the system to its previous state:

1. Open Control Panel → Recovery → Launching System Restore.
2. Select a restore point to a date when Wi-Fi was working properly.

2. Virus check

Some viruses (eg Trojan.Win32.DNSChanger) change network settings, redirecting traffic through their servers. Run a deep scan using Kaspersky Virus Removal Tool or Dr.Web CureIt!.

3. Using a USB/Wi-Fi adapter

If the built-in Wi-Fi module on your PC is faulty, connect an external adapter (for example, TP-Link TL-WN725N or ASUS USB-AC53 Nano). This is a temporary solution, but it will help determine whether the module itself is at fault.

4. Reset Windows to factory settings

Last resort if all else fails. Save important files and reset:

1. Parameters → System → Recovery → Reset your computer to its original state.
2. Select Save my files (or Delete all, if you want a complete cleaning).

5. Checking at the provider level

If the internet isn't working on any device, call your internet provider. Possible causes:

• 🔹 Technical work on the line.
• 🔹 MAC address blocking (ask to bind a new MAC address).
• 🔹 The payment deadline has expired or the tariff has been changed.

How to find out the MAC address of a PC?

Run the command ipconfig /all V Command line and find the line Physical address in the block Wireless network adapterThis is the MAC address.

FAQ: Frequently Asked Questions

Why does Wi-Fi work on my phone but not on my PC?

This means that the problem not in the router or provider, but in Windows settings, the Wi-Fi adapter driver, or a conflict with the antivirus. Start with reset network settings And driver checks.

What should I do if Wi-Fi disappears completely after resetting the settings?

If after the commands netsh int ip reset or resetting the router, Wi-Fi stopped connecting:

1. Check if the adapter is turned on Device Manager (is there a red cross?)
2. Remove the network in Windows settings (Parameters → Network and Internet → Wi-Fi → Managing known networks) and reconnect.
3. Update the adapter driver (see Section 5).

Can a virus block the internet?

Yes, some viruses change settings. DNS, add proxy servers, or block access to certain websites. Check with Kaspersky Virus Removal Tool or MalwarebytesPay attention to the processes in Task Manager - If there are unknown programs with network activity, this is a cause for concern.

Why do some websites open and some don't?

This is a typical sign of problems with DNS or blocking at the router/ISP level. Try:

1. Change DNS servers on 8.8.8.8 or 1.1.1.1 (cm. Section 4).
2. Disable Windows Firewall and antivirus software during the scan.
3. Check settings Parental control in the router.

If the problem persists, it's possible that your ISP is blocking the sites (for example, by court order). In this case, VPN.

How do I know if my ISP is blocking my internet access?

There are several ways:

1. Call your provider's support team and check if there are any restrictions under your contract.
2. Connect the router to another internet source (for example, via a USB modem) and check the Wi-Fi connection.
3. Try to access the Internet through VPN (For example, ProtonVPN or Windscribe). If everything works with the VPN, the blocking is confirmed.

Critical information: If, after all these steps, Wi-Fi still doesn't work on your PC, but internet is available on other devices, there's a 90% chance the problem is a hardware fault in the Wi-Fi module. In this case, the only solution is to replace the adapter or use an external USB module.

If the Internet doesn't work on all devices — the problem is either with the router (requires replacement) or with the provider (call support). Don't waste time fiddling with Windows settings if the error is global!

⚠️ Attention: Router settings (especially parameters VLAN, PPPoE or IPTV) may vary depending on the model and firmware. If you are unsure of what you are doing, do not change the settings at random, as this may result in a complete loss of internet access. Consult your router's manual or contact your provider's support team.