How to resolve the error “Windows has detected an IP address conflict”

An IP address is a set of numbers that identify a specific device when connected to a network. Different devices have unique IP addresses and computers use them to interact with each other on the internet.

But, when the IP addresses of two or more devices are similar, the network cannot tell them apart. When using the Internet, it causes the error “Windows has detected an IP address conflict”.


Here is how to fix IP address conflict error on Windows 10 and 11 in simple steps.

1. Refresh network settings using CMD

If you do not configure your PC’s network settings correctly, IP conflicts may occur. IP conflicts usually cause your internet connection to drop randomly. You can research what an IP conflict error is to understand it better.

To resolve this issue, follow these steps to refresh the network settings on your PC:

1. Run command prompt as administrator.

2. Copy and paste the following commands into the command prompt:

code>ipconfig /flushdns
ipconfig /registerdns
NETSH winsock reset catalog
NETSH int ipv4 reset reset.log
NETSH int ipv6 reset reset.log

3. The command prompt will then close on its own. Now restart your PC to make sure the changes take effect properly.

If the issue is still not resolved, proceed to the next steps to learn more advanced ways to resolve the IP conflict error.

2. Change DNS servers

The Domain Name System (DNS) server is an Internet directory that helps web browsers connect to different websites. If you want to learn more, we have already discussed all things DNS in detail.

If you misconfigured the DNS server settings or if your current server is having issues, it can lead to an IP conflict error. Fortunately, you can solve this problem by changing the DNS server address.

To change the default DNS server in Windows, follow the steps below:

  1. Open the Settings app by tapping the Win + I key combination.
  2. Move towards Network and Internet > Advanced network settings > More network card options.
  3. Right click on your internet connection and select Properties from the context menu.
  4. Select Internet Protocol Version 4 (TCP/IPv4) and double click on it.
  5. Click the “Use the following DNS server address” option.
  6. Type in the Preferred DNS Server ground and in the Alternate DNS server field.
  7. Finally, click on the OKAY button to save changes.

We used Google Public DNS as the DNS server for this tutorial. To improve online security, you can also use one of the best DNS servers available.

3. Renew your IP address

Usually a device can continue to use the same IP address forever. Technical failures, however, can lead to IP address conflicts and other issues that prevent the networking system from working properly. When this happens, you might want to consider renewing your PC’s IP address.

When you renew the IP address of a Windows computer, the underlying IP connection is also reset. This usually fixes some common issues with IP addresses.

Here is how to use the command prompt to renew the IP address:

1. Open the command prompt window as an administrator.

2. Type the command below once and press Walk in:

ipconfig /release

3. Now type the following command and press Walk in to get a new address:

ipconfig /renew

Ended. When you hit the Walk in key, you will be disconnected from the Internet for a few seconds. Once the command completes, you will be online again and a new line with an IP address will appear on the command prompt screen.

Also, if you get an error code instead of a newly assigned IP address, you should use the Windows Troubleshooter.

4. Change IPv6 Connectivity

If you are unable to use a service that requires internet, changing the IPv6 connectivity settings may resolve the issue. Before moving on to the steps, you need to check if your internet service provider supports IPV6. You can check this by running a quick test on the Test IPv6 website.

After confirmation, perform the following steps to disable IPv6 on your network:

  1. Right click on the The start menu icon and go to Network connections.
  2. Now click Advanced network settings > More network adapter options.
  3. Right click on your network connection and select the Properties option.
  4. After that uncheck or uncheck Internet Protocol Version 6 (TCP/IPv6).
  5. Finally, click OKAY to save changes.

5. Perform a Winsock Reset

If you cannot connect to the Internet, you can use the command prompt utility to reset Winsock. Simply put, Winsock allows Windows programs and applications to connect to the Internet.

By resetting Winsock, all network-related settings made by other networking programs such as VPN clients, third-party browsers, or antivirus software will be lost.

To reset Winsock using a command prompt, follow the instructions below:

1. Log in as an administrator and open the command prompt. You can use one of many ways to open a command prompt in Windows.

2. Type the command below, then press the key Walk in key:

netsh winsock reset

3. Restart your computer now and then check if the internet problem still occurs.

6. Restart your router

Your router gives your computer a separate IP address when you connect to it via an Ethernet cable or WiFi.

But, sometimes it may fail, and then you will receive the errors “Windows detected an IP address conflict” or “Windows was unable to retrieve an IP address”. A reboot or reboot of the router can help in such situations.

Here’s how to perform a quick restart of the router:

  1. Locate your router’s power button on the back.
  2. Press the router’s power button to turn it off.
  3. Wait at least two minutes.
  4. You can now turn on the router by pressing the power button again.

This will update your router’s DHCP server. The DHCP server is responsible for managing the network and assigning new IP addresses to all devices connected to the router.

If restarting your router doesn’t help, you need to reset it. Note that once you reset your router, all configured network settings will also be erased. If you’re ready to move on, we’ve got a guide on how to reset a router to help you out.

Get your internet working again

In conclusion, you can fix the “Windows has detected an IP address conflict” error by changing your IP address, restarting your router, or updating your PC’s network configuration.

The conflicting IP address error is usually caused by minor network configuration issues on your PC. It’s also possible that your router has assigned the same IP address to two or more devices due to a technical glitch or error.

We would never advise a beginner to configure router settings themselves. Not only will this disrupt network connectivity, but it can also cause major problems in the home network.

About Ferdinand Caldwell

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