SOLVED: Windows has detected an IP address conflict

IP address is a unique address your computer gets when it connects to a network. It’s the computer’s address and identity which is used to identify it among all the other computers and network devices. This error, as you can see in the message, shows that the IP address you have is in use. Usually, this is a Private IP Address and has nothing to do with your Internet Provider since it is a glitch with your PC Settings or Router. All Private IP Addresses on your network must be unique.

Think of it as a postal address, let’s assume you have 4 devices connected (a computer, a printer, an iPad and an iPhone) to your Network,  a message is sent from somewhere destined for the iPad but the iPad and the Computer have the same IP (Address). Now how is the Post Man supposed to know which of the two is the correct recipient?

Now let’s proceed with troubleshooting the issue.

Method 1: Restart Your Router

Your router can be failing to assign appropriate IP address to the connected device. This can be caused by a temporary glitch, but most of the time this is cleared by a simple reboot/power cycle. To do this, switch off the router, wait 1-2 minutes and turn it back on. Once it’s on, give it another 2-3 minutes to settle and then connect your device back.

Method 2: Release and Refresh IP Address

Click Start and type cmd, right click cmd and choose run as administrator. 

In the black command prompt window, type the following commands and press Enter after each:

netsh int ip reset c:\resetlog.txt

ipconfig /release

ipconfig /renew

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Now test to see if the issue has been resolved. 

Method 3: Remove Static IP

Press and Hold Windows key and press R. In the run dialog type ncpa.cpl and Click OK

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Right click on Local Area Connection if you are using wired internet connection or Right click on Wireless Network Connection if you are using Wi-Fi. Click on Properties in the drop down menu.

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Double click on Internet Protocol Version 4 (TCP/IPv4). Select Obtain an IP address automatically.

Select Obtain DNS server address automatically. Click OK > OK and close all windows.

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Restart your system and check if the issue resolved.

Method 4: Disable IPv6

Same default IPv6 addresses on different devices can cause this pop up to appear.

Follow our guide here to disable it.

Kevin Arrows


Kevin is a dynamic and self-motivated information technology professional, with a Thorough knowledge of all facets pertaining to network infrastructure design, implementation and administration. Superior record of delivering simultaneous large-scale mission critical projects on time and under budget.

Expert Tip

SOLVED: Windows has detected an IP address conflict

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