How to fix computer network

If your computer cannot access the network (including WiFi and wired network), you have the following ways to fix your computer network:

1. Check basic connections

• Check network cable (for wired network):
  • Make sure the network cable is securely plugged into the Ethernet port on your computer and modem/router.

• Try plugging the cable into another device (like another laptop) to check if the cable is damaged.

• Check WiFi signal (for wireless network):
  • Make sure you are within WiFi range of your router.

• Check to see if other devices are connecting. If not, the problem may be with the router.

• Restart modem/router:
  • Turn off the modem/router, wait 1-2 minutes, then turn it back on.

2. Check network status on computer

• Check network icon:
  • If the network icon has a yellow exclamation mark or a red “X”:
    • Right click on the icon> Select Troubleshoot problems to let Windows automatically fix the error.
    • Check network settings:

Press Windows + R , type ncpa.cpl and press Enter.

Check the status of your network connection:

• • If the connection is disabled, right-click and select Enable .
  • If you don’t see a network connection, your network card may be faulty.

3. Reset IP address

Open Command Prompt (CMD) as Administrator, then enter the following commands in turn:

netsh int ip reset

ipconfig /release

ipconfig /renew

ipconfig /flushdns

Restart your computer after doing this.

4. Check network driver

1. Right click on This PC/My Computer> Manage> Device Manager .

2. Expand the Network Adapters item.
   • If you see a yellow warning icon, your network driver may be faulty.
3. Right click on the network card> Select Update driver .

• If that doesn’t work, select Uninstall device and restart your computer to let Windows automatically reinstall the driver.

5. Check firewall and anti-virus software settings

• Temporarily disable firewall:
  1. Go to Control Panel> System and Security> Windows Defender Firewall .
  2. Select Turn Windows Defender Firewall on or off and turn off both options.

• Check antivirus software:

Some anti-virus software may block network connections. Temporarily disable them to check.

6. Reset network settings

1. Go to Settings> Network & Internet> Advanced network settings .
2. Scroll down and select Network reset .

Select reset now

3. Restart your computer.
   

7. Check hardware

• Wired network:
  • The Ethernet port on your computer may be faulty. Try using a USB Ethernet Adapter.
• Wireless network:

If the WiFi card is faulty, you can replace it with a USB WiFi adapter.

8. Contact your internet service provider (ISP)

If other devices cannot access the network, contact your ISP to check your internet connection status.

9. If still not working

Take your computer to a repair center for more detailed testing. It is possible that your network card or operating system has a serious error.

Good luck in fixing the error!