10 Fixes For Windows Has Detected An IP Address Conflict

Are you having trouble allocating IP addresses on your network? Are network users expressing dissatisfaction with the lack of network connectivity? An IP address conflict has occurred on your host or server. It produces a network communication problem. You can solve it in a matter of minutes.

windows has detected an ip address conflict

Windows states the reason for the error. The reason is “another computer on this network has the same IP addresses as this computer.” The reported message “Windows has detected an IP address conflict” indicates that your IP address is already used on the network. If you don’t make all of your private IP addresses unique, you’ll run into problems.

What is an IP address?

When your system connects to a network, it is assigned an IP address. The address and identification of the machine are used to distinguish it from other computers and network devices.

This message indicates that your IP addresses are already in use. It is usually a Private IP Address. It has nothing to act with the Internet Providers. It is caused by a problem with your computer’s settings or router.

What do you mean by “IP address Conflicts”?

IP conflicts are when two or more devices on the same network or subnet attempt to utilize the same IP address. Both use the same IP. Communications destined for one host may be jumbled up with communications destined for another. To avoid this, in the event of an IP conflict, specific hosts lose network connectivity.

How to prevent “Windows has detected an IP address conflict” error?

With the rise of networking, IP address disputes have become a widespread problem. When left unattended, they can result in costly network downtime. It causes significant issues, especially in large-scale or organizational networks.

There are three typical strategies to avoid windows has detected an IP address conflicts:

  • Ensure those network components such as routers and modems are working correctly.
  • Avoid duplication; IP address assignments are constantly monitored and scrutinized.
  • Checking for DHCP server flaws that could cause IP conflicts.

With homegrown IP management systems, running an IP conflict-free network is impossible. They don’t help with detecting IP address conflicts. It necessitates a unique solution. 

It will take care of managing and troubleshooting your IP address space, as well as resolving IP address disputes. Assuring a stable network infrastructure is also essential.

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Methods To Fix “Windows has detected an IP address conflict”

There are a variety of options for resolving IP address difficulties. It’s best to attempt the strategies in order, starting at the top and working your way down. 

  • Restart your router
  • Release and Renew Your IP Address Automatically
  • Remove Static IP
  • Disable then re-enable your network adapter
  • Update your Network Driver
  • Disable IPV6 new IP Address
  • Flush the DNS server Address
  • Reset Winsock on Home network 
  • Set Static IP Address Manually
  • Disable or reconnect to the VPN

1. Restart your router

Your router may be failing to assign the connected device a suitable IP address. A transient problem can cause this, but most of the time, it can be resolved with a simple reboot or power cycle. 

Restart your router
  • Turn off the router and then wait 1-2 minutes. 
  • Turn it back on. Allow another 2-3 minutes for it to settle before reconnecting your device. 
  • It will update your router’s DHCP server and assign a new IP address to all devices connected to the router.

Most of the time, restarting the router resolves the “windows has detected an ip address conflict” error.

2. Release and Renew Your IP Address Automatically

When it comes to network problems, especially with IPs, this strategy is reliable. I will use commands to release your current IP address and request that your router provide a new, fresh address to your device.

Just check if this solution fixes the “windows has detected an ip address conflict” error.

  • In your search bar, type Command Prompt. Run as administrator by right-clicking on the top result. You may be asked to enter your user password.
command prompt admin
  • Using administrative rights to run a command prompt
  • Type the following three instructions into the command prompt window.
    • netsh int IP reset c:\resetlog.txt

(smash enter)

  • ipconfig /release

(press enter)

  • ipconfig /renew

(press enter)

netsh int IP reset c:\resetlog.txt
ipconfig /release
ipconfig /renew
  • Check if Windows still finds an IP address conflict with your device after attempting this. Even if the error persists, we have several troubleshooting techniques that may be useful.

3. Remove Static IP

A static IP indicates that your computer’s address was manually entered and configured. It could cause problems with your network. You may be getting a “Windows has detected an IP address conflict” message because you have a static IP address.

It’s generally preferable to have your router issue an IP address to your device automatically. If you see the error notice “Windows has detected an IP address conflict,” try using an automated IP address instead.

  • Press and hold the Windows on your keyboard, then hold R. It will start the Run application.
  • Click the OK button after typing ncpa.cpl. The Network Connections window will appear as a result of this action.
ncpa.cpl
  • Select Properties from the right-click menu for the adapter you’re using.
properties network devices
  • Internet Protocol Version 4 (TCP/IPv4) should be double-clicked.
Internet Protocol Version 4 (TCP/IPv4)
  • Choose “Obtain an IP address automatically” also “Obtain DNS server address automatically” from the General tab.
"Obtain an IP address automatically
  • Restart your computer by clicking the OK button in both windows.

If both choices are selected, your device is already using dynamic IP addresses rather than static IP addresses.

4. Disable then re-enable your network adapter

Your device’s network adapter connects it to the internet. It might be a USB network adapter or a wireless network adapter. Disabling and re-enabling this adapter in Windows can often resolve connectivity issues.

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Please keep in mind that you’ll need a local user with administrative capabilities to complete this approach.

  • Press the Windows key-button on your keyboard, then press R. This will start the Run application.
  • Click the OK button after typing ncpa.cpl. The Network Connections window will appear as a result of this action.
  • Select Disable from the right-click menu for the adapter you’re using.
disable ethernet
  • When you’re disconnected from the network, and it’s correctly disabled, right-click on the same adapter and select Enable.
Enable ethernet
  • Check to see whether the IP conflict persists after restarting your device.

5. Update your Network Driver

I will use the integrated Device Manager to find a new, updated driver in this technique. Few times outdated network drivers are responsible for the “windows has detected an ip address conflict” error.

  • Hold the Windows button and then hit R. This will start the Run program.
  • To open the Device Manager, type devmgmt.msc and hit OK.
devmgmt.msc
  • Click the arrow button to expand the Network adapters section.
  • Select Update Driver from the context menu when you right-click on your driver.
update driver
  • Select Automatically search for updated driver software.
  • If Windows detects an updated driver, it will download and install it on your computer automatically.
  • Restart your system to see if the problem has been resolved.

6. Disable IPV6 new IP Address

The “Windows has discovered IPv6, a relatively new technology, causes an IP address conflict” error. To check if this is the issue, switch off IPv6 and see if the error goes away.

  • Press the Windows key-button on your keyboard, then hold R. This will start the Run application.
  • Click the OK button after typing ncpa.cpl. The Network Connections window will appear as a result of this action.
  • Select Properties from the right-click menu for the adapter you’re using.
  • Removing the checkbox from Internet Protocol Version 6 (TCP/IPv6) to make the box empty. It will prevent your device from using IPv6.
Internet Protocol Version 6 (TCP/IPv6)
  • Check to check if the problem has been resolved by restarting your computer.

7. Flush the DNS server Address

The Domain Name System (DNS) associates IP addresses with websites, making them easier to remember. Only numbers are understood by the computer’s unique address and networks. DNS does the mapping in the background to fill the gap.

To avoid constant lookups, it caches many of these mappings. It may be the source of the disagreement. So, clear the cache and let the DNS re-establish itself.

  • Type ‘command’ into the start menu search box.
  • Right-click Command Prompt in the search results, run it as administrator. 
  • Enter the command  “ipconfig /flushdns”
ipconfig /flushdns

8. Reset Winsock on Home network 

Windows sockets or Winsock manage connection requests for short. It establishes a uniform interface for all network services, particularly TCP/IP.

  • Go to the command prompt as an administrator to reset this Winsock.
  • Type “netsh Winsock reset” in this command prompt.
netsh Winsock reset
  • Close the command prompt after waiting for a confirmation message.
  • Restart the computer.
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9. Set Static IP Address Manually

Consult a professional if the procedures above fail to resolve the Windows has detected an IP address conflict. I propose manually setting a static IP for your PC. To set a static IP address on a windows computer, manually follow the given steps.

  • Right-click on the network icon on the side (right-bottom) of your taskbar. Then choose “Open Network and Sharing Center.”
  • Choose the network adapter you’re currently using in the next step (and the one getting this issue).
  • Then, select “Properties” from the drop-down menu.
  • Ethernet connection status
  • Then choose “Internet Protocol Version 4 (TCP/IPv4)” and double-click it.
  • Configure your static IP in the next step by following the instructions provided by your modem or router.

10. Disable or reconnect to the VPN

You might be utilizing the built-in VPN service in Windows 10. It creates a secure connection to the Internet, although it may cause network problems. Your PC comes up from hibernation mode. Your VPN may have issues reconnecting to the internet.

Disable or manually reconnect to the VPN service to resolve this issue. Consider employing a premium VPN if you’re seeking a long-term solution.

  • Open Settings and select Network & Internet from the drop-down menu.
  • On the left side, select VPN.
  • On the right side, click the disconnect VPN you want to get rid of.
  • Remove the item by clicking the Remove button.
  • If you like, you can close Settings when you’re done.

Conclusion

Check your router settings, use a dynamic IP address, or change DNS servers to fast resolve this network trouble. Run through these alternatives to see if one of them fixes the error “Windows has detected an IP address conflict.”

FAQs

How do I resolve an IP address conflict?

Multiple IP address conflicts may occur on a DHCP network if a network device has a static IP address. More information can be found here. Convert the network equipment with the static IP address to a DHCP client to solve the problem. Alternatively, on the DHCP server, you can exclude the static IP address from the DHCP scope.

Why do I have getting IP address conflicts?

When two or more devices in a network have the same IP address, an IP address conflict occurs. One or both of the devices are unable to communicate with the wireless network due to this. Due to a malfunction, the DHCP server allocates the same dynamic IP address to two (2) or more specific devices.

What does it mean when another computer has the same IP address?

When two or more machines on the same network are given the same IP address, an IP address conflict arises. IP addresses serve to identify your computer on a network. Your router uses these IP addresses to deliver network traffic to the appropriate devices.

What do I do if another computer is using my IP address?

Restart any devices that are linked to the same network. Modern operating systems frequently attempt to renew leases automatically. They ask the DHCP server for a new, unused IP address. If rebooting devices does not resolve the problem, the Wi-Fi router should be reset.