A simply Windows 10 Technology Blog.

Fix Windows Has Detected An IP Address Conflict

0 8

Getting Windows has detected an IP address conflict error message while connecting to a wireless network or through an Ethernet cable? Basically this error message means that more than one computer on your network is using the same IP address, Which Conflict the network connection and this needs to be fixed. Here some applicable solutions to windows IP Address Conflict error.

Windows has detected an IP address conflict
Another computer on this network has the same IP address as this computer. Contact your network administrator for help resolving this issue. More details are available in the Windows System event log.

What is IP Address ?

Now you have question on your mind what is this IP address and Why Getting IP Conflict Error ? For them who don’t, know About IP Address, Windows IP Address is a Unique Identity of computer gets when it connects to a network. Or a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.

There are two types of IP address, it can be either static or dynamic. A static IP address is manually assigned and it never changes. On the other hand, dynamic IP address is automatically assigned every time your computer connects to the Internet or router and is only temporary.

Fix Windows IP Address Conflict error

IP address conflict happens when two computers on the same LAN network end up with the same IP address. It can then lead to both computers being unable to connect to the internet. And Results IP address conflict Error message like “There is an IP address conflict with another system on the network” or “This IP address is already in use on the network.

Reboot Network Device and Computer

To resolve this issue, a simple reboot will help you get rid of the Windows has detected an IP address conflict error immediately. To do this Simply Unplug the power cable from Router and Modem. Now Restart the Windows to get a fresh Start then Again plugin the power Cable of Router and modem wait flew sec and check There is No IP conflict Error message.

Disable then Re-enable network adapter

Again Some Times Stuck Network adapter cause this issue, And Disable and Re-enable the Network Adapter can help to fix this issue. To do this press Win + R, Type ncpa.cpl and hit enter key. Then Right click on Active network Adapter ( either Ethernet or WiFi network Adapter ) and select Disable. Restart computer to get a fresh start and open The same windows by type ncpa.cpl on Run window and Again right-click on the same adapter and this time choose Enable. Now try to connect to your LAN or wireless network and see there is no more Windows has detected an IP address conflict.

disable enable WiFi network
disable enable WiFi network

Update Network Adapter

Also Some times incompatible corrupted network Adapter driver cause Different network problems. Update the Netowrk Adapter Driver to make sure that network adapter driver not causing the issue. To update this open Device manager by press win + R, Type devmgmt.msc and hit enter key. Then expend Network adapter select the installed driver right click on it select update driver and fallow on screen instruction to install and update latest driver.

update network adapter driver
update network adapter driver

Flush DNS and Reset TCP/IP Configuration

If above methods failed to fix the Issue Then perform bellow command to Flush the DNS and Reset TCP/ IP which fix almost every Internet and network problems.

First open command prompt as administrator Then Type fallowing commands one by one and hit enter to execute the same.

  1. netsh int ip reset reset c:\resetlog.txt
  2. netsh winsock reset
  3.  ipconfig /release
  4.  ipconfig /flushdns
  5.  ipconfig /renew

After that type command Exit to close command prompt and Reboot windows to apply changes. Check Flush DNS and Reset TCP/ IP fix Windows IP address conflict error.

Re-configure IP address

If still the problem not resolved for you, getting IP conflict error message Then Re-configure the IP address help to fix the issue. This cause there are Two scenarios

First if after manually assigned A static IP address, Getting IP conflict error then either change the IP address range or Set it to Obtain an IP address automatically.

Again On Second Scenario if you already set computer to Obtain an IP address automatically Then you need to check with Assign IP Address manually. Lets see How to do

Change or Remove Static IP Address

To do this Press Win + R, type ncpa.cpl and hit enter key. Right click on Active network Adapter select properties. Then double click on Internet protocol version 4 ( TCP/IPv4 ), Here eaither Change the IP address Range or Select the radio button Obtain an IP address automatically and Obtain DNS server address automatically. Click Apply and ok to make save changes, Restart windows and check there is no more IP conflict error.

Change or Remove IP Address on computer
Change or Remove IP Address on computer

Manually Assign Static IP address

For Second Senario If you are already using option Obtain an IP address automatically and Obtain DNS server address automatically and getting IP conflict Error that cause Assign IP address manually help to fix this issue. To do this again press Win + R, type ncpa.cpl and hit enter key. Double click on double click on Internet protocol version 4 ( TCP/IPv4 ), Select radio button Use the fallowing Addresses

  • IP address: This is the static IP of your computer that you want to assign. For example:
  • Subnet mask: The subnet mask often is
  • Default gateway: This is the IP address of your router. It often is

Note: If the IP address of your modem/router is different, such as, then your static IP address needs to follow its form, for example, Otherwise, your Windows computer won’t be able to connect to the network.

  • Prefered DNS server:
  • Alternative DNS server:

That’s all click apply and ok to make save changes. Then check I am sure there is no more windows IP conflict Error.

Disable IPv6

Also some users Report Disable IPv6 resolve IP conflict error for them. You can do by press Win + R, Type ncpa.cpl and hit enter key. Then right click on active network adapter select properties.  Here on network properties uncheck Internet Protocol Version 6 (TCP/IP). click OK then click Close. Reboot your PC to save changes.

These are some most applicable solutions to fix Windows IP conflict Error. I hope after apply above solutions your problem will get resolved, Still have any query, suggestion feel free to discuss on comments bellow. Also Read Fix Potential Windows Update Database error detected 0x80070490.

You might also like