Why is there no internet on my computer, but Wi-Fi works on my phone, laptop, and other devices?

You are faced with a paradoxical situation: Wi-Fi works great on a smartphone, tablet, or second laptop, but your computer stubbornly refuses to connect to the internet—either it doesn't see the network at all or it shows a limited connection. This problem can occur with both a wireless and a cable connection. What's going on?

The reasons for this behavior lie in combinations of hardware, software, and network factors. Most often, it is the fault of network card drivers, incorrect settings IPv4/IPv6, conflicts with antivirus or firewall software, and router configuration errors. Less commonly, the problem is related to physical damage to the cable or ports. In this article, we'll discuss all possible scenarios - from basic checks to in-depth diagnostics, including nuances for Windows 10 And Windows 11.

Important: if there is no internet on all devices, the problem lies with the router or the ISP. Our instructions are only relevant for cases where The Internet is available on other gadgets, but not on one PC..

1. Checking the basic parameters: what to do first

Before digging deeper, make sure the problem isn't solved by simple steps. Start with these steps:

• 🔌 Restart your router and computerUnplug the router for 30 seconds, then plug it back in. Restarting your PC can also help clear temporary network errors.
• 📶 Check the airplane mode. IN Windows 10/11 it may turn on by accident Airplane mode (airplane icon in the taskbar). Disable it.
• 🔄 Reconnect to the networkForget the network in the Wi-Fi settings (Settings → Network & Internet → Wi-Fi → Manage known networks) and reconnect by entering the password.
• 🔗 Check the cable (if connected via Ethernet)Try a different cable or connect it to a different port on the router.

If the Internet still doesn't appear after these steps, proceed to diagnostics.

2. Diagnostics of the network adapter and drivers

One of the most common reasons for the lack of internet on a PC is malfunction or incorrect operation of the network adapterThis could be a hardware problem (for example, a burned-out network card) or a software problem (outdated drivers).

To check the adapter:

1. Click Win + X and select device Manager.
2. Expand the tab Network adapters. The following should be displayed here:
   • 📡 Wireless adapter (For example, Intel Wi-Fi 6, Qualcomm Atheros, Realtek RTL8821CE)
   • 🔌 Ethernet controller (For example, Realtek PCIe GbE Family Controller)

If the light next to the adapter is on exclamation mark, right-click on it and select Update driver.

If the adapter is not listed or is marked as Unknown device, this indicates hardware failure or missing drivers. Try:

• 🔄 Remove device (right click → Remove device), then restart your PC - the system will try to install the driver automatically.
• 💿 Install the driver manuallyDownload it from the official website of your laptop or motherboard (for PCs).

If the adapter is OK, but there is still no internet, go to the protocol settings TCP/IP.

3. IP and DNS settings: why the computer does not receive an address

Often the problem lies in incorrect IP address or DNS server settingsA computer may connect to a router but not access the internet due to an address conflict or incorrect settings.

To check and correct the settings:

1. Open Settings → Network & Internet → Wi-Fi/Ethernet (depending on the connection type).
2. Click on your network name, then select Configuring adapter settings.
3. Right-click on an active connection → Properties → Internet Protocol version 4 (TCP/IPv4).

Make sure the boxes are checked automatic receipt of IP and DNSIf not, enable them and save the settings. If the problem persists, try enter DNS manually:

• 🌍 Google DNS: 8.8.8.8 And 8.8.4.4
• 🌍 Cloudflare DNS: 1.1.1.1 And 1.0.0.1

After changing DNS, restart your computer.

If this doesn't help, check if the connection is blocked firewall or antivirus.

4. Conflicts with firewall and antivirus

Sometimes built-in Windows firewall or third-party antiviruses (for example, Kaspersky, Avast, ESET NOD32) block the network connection, mistaking it for a threat. This can happen after updating a program or changing its settings.

To check if your antivirus is to blame:

1. Temporarily disable your antivirus (right-click on the tray icon → Suspend protection or Disable).
2. Try connecting to the Internet.
3. If the internet is back online, the problem is in your antivirus settings. Add your network to exceptions or reinstall the program.

To check the firewall Windows:

1. Open Control Panel → Windows Defender Firewall.
2. Select Enabling and disabling Windows Firewall.
3. Please disable it temporarily for private and public networks.

If the Internet works after disabling the firewall, you need to add an exception for your connection or reset your firewall settings to default.

5. Router issues: why isn't it distributing internet to all devices?

Sometimes the router can restrict internet access for specific devicesThis happens because:

• 🔒 MAC address filtering (the router is configured to distribute the Internet only to authorized devices).
• 📊 Connection limits (for example, the router only supports 10 devices, but 11 are connected).
• ⚡ Lack of IP addresses in the DHCP pool (the router cannot assign an IP address to your PC).

To check your router settings:

1. Open the router's web interface by entering into your browser 192.168.0.1 or 192.168.1.1 (the address is indicated on the router sticker).
2. Log in (the default login and password are usually admin/admin or admin/password).
3. Check the following sections (names may vary depending on your router model):
   • DHCP → DHCP Settings: Make sure the server is up and the address pool is not exhausted.
   • Wireless Mode → MAC Filter: If the feature is enabled, add your PC's MAC address to the allowed list.
   • Local Area Network → ARP: Check if there is any IP binding to MAC addresses of other devices.

If you are unsure about the settings, reset the router to factory settings (button Reset on the back panel) and set it up again.

How to find out the MAC address of a computer?

Open Command Prompt (Win + R → cmd → Enter) and enter the command ipconfig /all. The MAC address will be indicated in the line Physical address for your adapter.

6. Network protocol issues and resetting settings

If all the previous steps did not help, the problem may lie in damaged network protocols or conflicts in system settings. In this case, resetting the network stack will help.

Run the following commands in command prompt as administrator:

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

After executing the commands restart your computerThis will reset all network settings to factory defaults and clear the DNS cache.

If the problem persists, try roll back the system to the restore point when the internet was still working:

1. Open Control Panel → Recovery → Open System Restore.
2. Select a restore point 2-3 days before the problem occurred.
3. Confirm the recovery and wait for the process to complete.

If this doesn't help, it remains to check hardware - a network card or Ethernet port.

7. Hardware failures: when the hardware is to blame

If software methods do not produce results, the problem may be in physical malfunction:

• 🔌 Ethernet port on your computer or router may be damaged (for example, after an impact or exposure to moisture).
• 📡 Wi-Fi adapter may fail due to overheating or power surge.
• 🔗 Ethernet cable may be broken or have poor contact.

To diagnose a hardware problem:

1. If the connection is via Wi-Fi:
   • Try connecting USB Wi-Fi adapter — if the Internet works, then the built-in adapter is faulty.
   • Check if the wireless indicator on your laptop is on (if applicable).
4. If the connection is via cable:
   • Connect the cable to another port on the router.
   • Try a different cable.
   • If possible, connect your computer to a different router or modem.

If you have confirmed a hardware failure, you have two options:

• 🔧 Replace the faulty component (network card, Wi-Fi module or cable).
• 💻 Use an external adapter (For example, USB Wi-Fi dongle or PCIe network card).

Comparison of problem solving methods

As can be seen from the table, the most effective Checking the router and updating drivers are the solutions. If the problem persists, combine several methods.

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

Why is there no Wi-Fi internet on my laptop, but there is on my phone?

This may be due to:

• 🔄 Outdated Wi-Fi adapter drivers on a laptop.
• 📵 Disabled adapter in the Device Manager or via a function key (e.g. Fn + F2).
• 🔒 MAC address filtering in the router settings.

Start by checking the drivers and enabling the adapter.

How can I check if my ISP is to blame for my internet connection?

If there is no internet on all devices, including your phone, the problem is most likely with your provider. Check:

• 📞 Call your provider's support team and check if there are any issues.
• 🔌 Connect the cable directly to the computer (bypassing the router) - if the internet appears, the router is to blame.
• 🌐 Try accessing your provider's website from your phone via mobile internet—they often display notifications about outages.

Could a virus be the reason for the lack of internet?

Yes, some viruses and malware may block the network connection or change DNS settings. If you suspect an infection:

1. Scan the system Malwarebytes or Dr.Web CureIt.
2. Check the file hosts (path: C:\Windows\System32\drivers\etc\hosts) - there should be no extraneous entries in it.
3. Restore your system to a previous restore point.

What should I do if the Internet is lost after a Windows update?

Updates Windows Sometimes network settings are reset or incompatible drivers are installed. Try:

• 🔄 Roll back the update (Settings → Update & Security → Windows Update → View update history → Uninstall updates).
• 🔙 Revert to the old driver version in the Device Manager.
• 🛠️ Install the latest driver version from the manufacturer's website.

Why does the internet only work through a VPN?

If the Internet appears only when VPN is enabled, this speaks about:

• 🔒 Traffic blocking by the provider (for example, due to non-payment or restrictions).
• 🌍 DNS issues — VPN uses its own DNS servers.
• 📡 Restrictions at the router level (for example, parental control).

Try changing your DNS to 8.8.8.8 or contact your provider.

If none of the suggested methods helped, you should contact a specialist - the problem may be related to deep operating system settings or hardware failures, which are difficult to diagnose without professional equipment.