Windows has detected an IP address conflict

Anonymous
2009-09-22T07:04:32+00:00

I just recently purchased my laptop so I am just learning. The message I got on the computer said, 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 does this mean and is this something important I need to fix. I would appreciate any help in this matter.

Windows for home | Previous Windows versions | Internet and connectivity

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments No comments
Answer accepted by question author
Anonymous
2009-09-22T08:22:55+00:00

I see that message on my home network sometimes, and it's not critical.  If you have a home network, try powering off your router, waiting a few seconds, and powering it on.  If you're on a business network, consult with the network manager.


Steve Winograd, Microsoft MVP (Windows Desktop Experience)

Was this answer helpful?

200+ people found this answer helpful.
0 comments No comments

113 additional answers

Sort by: Most helpful
  1. Anonymous
    2012-02-26T08:37:31+00:00

    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

    Was this answer helpful?

    7 people found this answer helpful.
    0 comments No comments
  2. Anonymous
    2011-07-18T03:41:12+00:00

    This has recently pop up on my Windows 7 computer, even with wired network.  I notice this has occur after the last windows update.

    There are no other computers on my network, yet, this message continue to sprung up for no reason.

    /release /renew is no use, reboot is no use, reboot router, no use, reset drivers, no use.  None of the IP related reset works.  I consider this is a new bug sprung up from the last Windows update as my network and computer have not changed for 2 years.

    I advice MICROSOFT look into this immediately and do not waste time blame on the user.

    Regards,

    Tony

    Was this answer helpful?

    4 people found this answer helpful.
    0 comments No comments
  3. Anonymous
    2015-11-20T17:42:27+00:00

    DING DING DING!  Worked for me.  Had this problem for over a year.  Did as advised and voila!  Have not seen the pesky message in over 2 weeks. Thanks!!!!! 

    This is what he wrote that worked for me:

    The problem is when you install these devices their drivers install a conflicting internet protocol.

    *You can easily fix this as I described in an earlier post. Another route that will get you to the same result is open the control panel open the network sharing center. With the network sharing center open on the left side of the panel you will see "change adapter settings" open that screen and right click on the adapter that is open and select "properties" from the drop down. In the configuration panel you will see "Internet Protocol Version 6 (TCP/IPV6)" and an identical entry except it is version 4. Unless every every device you have is compatible to V6 you must use V4.**UNCLICK "Internet Protocol Version 6" AND YOU WILL NEVER BE TROUBLED BY THIS BOTHERSOME MESSAGE AGAIN.*While you are in this screen you may want to do this with all of the rest of your adapters especially if you are getting this message when you are using a different adapter to connect to the internet

    Was this answer helpful?

    2 people found this answer helpful.
    0 comments No comments
  4. Anonymous
    2014-02-13T17:46:05+00:00

    That is incorrect. You have very easy access to the registry, open run, type regedit....boom...but that has nothing to do with the problem. Its a network issue that just means two of the same devices on your network are sharing the same local IP address....Reinstalling your HD will do nothing at all but be a pain in the butt, take a long time, and possibly lose your files if you aren't sure how to back them up properly. Reformatting the HD will do nothing either, except lose your Operating System. If there is a Windows KB (hotfix or patch you see when running updates) is causing the issue, then all that has to be done is finding the one causing the issue, and uninstall it. You people are going WAY out of the scope of the problem here and are directing people to do useless things to fix it. The answer to everything is not reformat or reinstall the OS. Do your research first please!!

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments No comments