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Fix network connection issues with Windows 10

A few things to try if you have problems getting connected to a network and can’t connect to the Internet:

1. Update the network adapter driver

An outdated or incompatible network adapter driver can cause connection problems. If you recently upgraded to Windows 10, it's possible that the current driver was designed for a previous version of Windows. Check to see if an updated driver is available.

  1. In the search box on the taskbar, type Device Manager, and then select Device Manager from the list of results.

  2. In Device Manager, select Network adapters > the network adapter name.

  3. Right-click (or press and hold) the network adapter, and then select Update Driver Software > Search automatically for updated driver software. Follow the steps, then select Close.
    You may get a message stating:
    The best driver software for your device is already installed

    If the latest driver is not already installed it will install it for you; then see below:

  4. If you think the latest driver is not already installed you can force the installation by doing:
    1) Choose “Update Driver Software”
    2) Choose “Browse my computer for driver software”
    3) Choose “Let me pick from a list of device drivers on my computer”
    4) Click “Have Disk” button
    5) Select the directory with the correct drivers and then select the monitor make/model

  5. After installing the updated driver, select the Start Start icon button > Power > Restart if asked to restart, and see if that fixes the connection issue.

Note:
If Windows can’t find a new driver for your network adapter, visit the PC manufacturer’s website and download the latest network adapter driver from there. If your PC can't connect to the Internet, you'll need to download a driver on a different PC and save it to a USB flash drive, so you can install the driver on your PC.
You’ll need to know the PC manufacturer and model name or number.

2. Uninstall the network adapter driver and restart

If the previous steps didn’t work, try to uninstall the network adapter driver, and then restart your computer and have Windows automatically install the latest driver. Consider this approach if your network connection stopped working properly after a recent update.

  1. In the search box on the taskbar, type Device Manager, and then select Device Manager from the list of results.

  2. In Device Manager, select Network adapters > the network adapter name.

  3. Right-click (or press and hold) the network adapter, and then select Uninstall > select  Delete the driver software for this device check box > OK to confirm you want to uninstall it.

  4. After uninstalling the driver, select the Start Start icon button > Power > Restart.

    After your PC restarts, Windows will automatically look for and install the network adapter driver. Check to see if that fixes your connection problem.

3. Run the Network troubleshooter followed by networking commands

The Network troubleshooter can help diagnose and fix common connection problems. Using this troubleshooter, then running some networking commands afterwards if needed, can help get you connected.

To run the Network troubleshooter

  1. In the search box on the taskbar, type Network troubleshooter, and then select Identify and repair network problems from the list of results.

  2. Follow the steps in the troubleshooter and see if that fixes the problem.

If that doesn’t fix your connection problem, try to:

To run these networking commands in a command prompt window

  1. In the search box on the taskbar, do as done above: Type Command prompt, right-click (or press and hold) Command prompt, and then select Run as administrator > Yes.

  2. At the command prompt, run the following commands in the listed order, and then check to see if that fixes your connection problem:

    • Type netsh winsock reset and press Enter.

    • Type netsh int ip reset and press Enter.

    • Type ipconfig /release and press Enter.

    • Type ipconfig /renew and press Enter.

    • Type ipconfig /flushdns and press Enter.

4. Temporarily turn off firewalls

Sometimes firewall software might prevent you from getting connected. You can see if the connection issue is caused by a firewall by turning it off temporarily, and then trying to visit a website you trust.

The steps to turn off a firewall depend on the firewall software you’re using. Check the documentation for your firewall software to learn how to turn it off. Make sure you turn it back on as soon as you can. Not having a firewall turned on makes your PC more vulnerable to hackers, worms, or viruses.

If you have trouble turning off your firewall, do the following to turn off all firewall software that's running on your PC. Again, make sure you turn your firewall back on as soon as you can.

To turn off all firewalls

  1. In the search box on the taskbar, do as done above: Type Command prompt, right-click (or press and hold) Command prompt, and then select Run as administrator > Yes.

  2. At the command prompt, type netsh advfirewall set allprofiles state off , and then press Enter.

  3. Open your web browser and visit a website you trust and see if you can connect to it.

  4. To turn on all firewalls you might have installed, at the command prompt, type netsh advfirewall set allprofiles state on , and then press Enter.

If you find the firewall software is causing the connection issues, contact the software manufacturer or visit their website to check and see if updated software is available.

5. Temporarily turn off any antivirus or malware-prevention software

Sometimes antivirus or malware-prevention software might prevent you from getting connected. You can see if the connection issue is caused by antivirus and malware-prevention software by turning it off temporarily, and then trying to visit a website you trust. If you find it is causing the connection issues, contact the software manufacturer or visit their website to check and see if updated software is available.

The steps to turn off antivirus or malware-prevention software depend on the software you’re using. Check the documentation for your software to learn how to turn it off. Make sure you turn it back on as soon as possible. Not having antivirus or malware-prevention software turned on makes your PC more vulnerable to hackers, worms, or viruses.

If you’re not sure what antivirus or malware-prevention software program you have installed, Windows might be able to tell you.

To find out what antivirus or malware-prevention software is installed

  1. In the search box on the taskbar, type System and security, and then select Review your computer’s status and resolve issues.

  2. Select the down arrow next to Security.

    If Windows can detect your antivirus software, it's listed under Virus protection. For malware-prevention software, look under Spyware and unwanted software protection.

  3. If the antivirus or malware-prevention software is on, check the documentation for that software to learn how to turn it off.

Make sure you turn your antivirus or malware-prevention software back on as soon as you can to make sure your PC is better protected.

6. Reinstall network devices using netcfg –d command

Running the netcfg –d command should be the last step you try.
Consider using this if the steps above don’t help to get you connected.

This command can help solve connection problems you might have after upgrading from a previous version of Windows to Windows 10, as well as fix problems where you can connect to the Internet, but not to shared network drives. It removes any network adapters you have installed and the settings for them. After you restart your PC, any network adapters are reinstalled and the settings for them are set to the defaults.

Note

  • To use the netcfg –d command, your PC must be running Windows 10 Version 1511.
    To see what version of Windows 10 your device is currently running, select the Start Start icon button, then select Settings > System > About.

In the search box on the taskbar, type Command prompt, right-click (or press and hold) Command prompt, and then select Run as administrator > Yes.

  • At the command prompt, type netcfg –d, and then press Enter.

  • After running the command, select the Start Start icon button > Power > Restart, and see if that fixes the connection issue.
  • Notes

    • If you run the command and receive an error referring to NetSetupDeleteObject, run the netcfg –d command until it’s successful.

    • After running this command, you might need to reinstall and set up other networking software you might be using, such as VPN client software or virtual switches from Hyper‑V (if you're using that or other network virtualization software).