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ipv4 settings revert automatically, how can I stop this?

  1. #1

    ipv4 settings revert automatically, how can I stop this?


    Hello,

    I signed up for a DNS service a while back. When I stopped using their service I removed their DNS entry from the ipv4 settings and considered it done (this was all they stated for install/uninstall, just update the DNS in ipv4)

    At random, the PC will revert back to their DNS server. I have no virus (Malewarebytes Pro), my hosts file is empty. The company has zero idea how to fix this problem and it's like listening to a broken record (19 emails back/forth) with their tech support.

    Here's what I've done:

    1) Removed it from ipv4 settings manually and reset to Obtain DNS Automatically
    2) Open cmd as admin and ran the following sequence:
    ipconfig /flushdns

    ipconfig /registerdns

    ipconfig /release

    ipconfig /renew

    netsh winsock reset

    netsh int ip reset

    3) Reboot

    On reboot, everything is normal, anywhere from 24 hours to 30 DAYS later it automatically reverts back to their DNS servers. I am on a .edu domain. I do not have access to the router, but I never modified anything in the router. Can anyone please provide a suggestion as to why my PC keeps reverting to their DNS servers?

      My System SpecsSystem Spec

  2. #2


    So the ipconfig /flushdns command isn't working either? Sounds like this DNS server messed with the host file or something.

    The following link shows more methods for flushing the DNS.
    How to Flush DNS
      My System SpecsSystem Spec

  3. #3


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    Check to make sure that you do not have any software running from this service. Same with checking that the router is not set with this previous set of DNS IP's.
      My System SpecsSystem Spec

  4. #4


    Quote Originally Posted by chev65 View Post
    So the ipconfig /flushdns command isn't working either? Sounds like this DNS server messed with the host file or something.

    The following link shows more methods for flushing the DNS.
    How to Flush DNS
    My host file is untouched. I'll run through this video a bit later. The big issue is the randomness. Meaning, I can try your solution and I guarantee it will work for a bit. But after 24 hours to a few days, it keeps reverting.

    [FONT=Verdana]
    Quote Originally Posted by broe23[/FONT
    ]Check to make sure that you do not have any software running from this service. Same with checking that the router is not set with this previous set of DNS IP's.


    There is no software running that seems out of order (I'm pretty familiar with this kind of stuff). I do not have access to the router. I only updated ipv4 settings on my laptop, I'm unsure how that can get sent upstream to the router and written into it, but even if it did, I have no access to remove it.

    Edit again: Email 20 now, and back in a circle to their same suggestion, remove ipv4, flush dns, flush cache. This stuff is not working.


    Last edited by roryboreyalice; 23 May 2014 at 12:41. Reason: Added second response
      My System SpecsSystem Spec

  5. #5


    The routers DNS setting can't really change or effect the static DNS settings in IPv4. It certainly won't erase the static DNS settings.

    If the flush DNS commands aren't working then there is a rogue software causing the problem.

    Look in Add/Remove programs for the program or, run virus scan's etc. We can't really fix or reproduce this problem from here.
      My System SpecsSystem Spec

  6. #6


    Posts : 25
    WIN8.1/Server 2012 R2/Win 7 Ultimate


    Quote Originally Posted by chev65 View Post
    The routers DNS setting can't really change or effect the static DNS settings in IPv4. It certainly won't erase the static DNS settings.

    If the flush DNS commands aren't working then there is a rogue software causing the problem.

    Look in Add/Remove programs for the program or, run virus scan's etc. We can't really fix or reproduce this problem from here.
    Yes but he said he reverted it back to automatic. If his router has the details in them then the PC will automatically pick up the details from the router. If he knows what his DNS is supposed to be then these should be manually entered into the iPv4 details as manual. Then unless he has a virus they will stay put.
      My System SpecsSystem Spec

  7. #7


    Quote Originally Posted by veldthui View Post
    Quote Originally Posted by chev65 View Post
    The routers DNS setting can't really change or effect the static DNS settings in IPv4. It certainly won't erase the static DNS settings.

    If the flush DNS commands aren't working then there is a rogue software causing the problem.

    Look in Add/Remove programs for the program or, run virus scan's etc. We can't really fix or reproduce this problem from here.
    Yes but he said he reverted it back to automatic. If his router has the details in them then the PC will automatically pick up the details from the router. If he knows what his DNS is supposed to be then these should be manually entered into the iPv4 details as manual. Then unless he has a virus they will stay put.


    I just mentioned that the router's DNS settings can't make the static DNS settings vanish or appear from the IPv4 properties.

    Yes the Op removed the DNS from IPv4 but they keep coming back which is pretty strange and suspicious. The router's DNS settings do not cause the IPv4 static DNS settings to change.

    The router's DNS settings won't make a static DNS IP appear or disappear from the IPv4 properties.

    Something is making those static DNS settings appear. That is just the point.
      My System SpecsSystem Spec

  8. #8


    Quote Originally Posted by chev65 View Post
    Something is making those static DNS settings appear. That is just the point.
    Can you suggest a way to log the events? I've not touched anything since they reappeared. I've flushed the dns every way possible in the past two months taking suggestions from reddit, the dns host, and everyone else in the book. The DNS host has actually quoted this forum for solutions to my problem and they are wiping their hands of it. It just reappears at random. The best I've had it go away is exactly 1 month. It has reappeared after 12 hours, after a few days, weeks, whatever.

    What can I do to find this? It's not a rouge app that appears in the task process list, it is not a virus, I have scanned a few times, I get nothing. Surely there is some intensive log program I can run that I can parse through with some keywords to find this sucker.
    Last edited by roryboreyalice; 23 May 2014 at 19:01. Reason: words and stuff
      My System SpecsSystem Spec

  9. #9


    Posts : 25
    WIN8.1/Server 2012 R2/Win 7 Ultimate


    Just because you have scanned for viruses and stuff and nothing was found does not mean there may still not be one there. It may be the scanner you are using does not know about that one.

    If it is being changed from auto back to manual then something is actually doing it. Did you remove the details of the old DNS numbers before reverting back to automatic?

    One thing to try is to find out what your current DNS is supposed to be and manually entering them in and leave it on static. That is how I run mine all the time.
      My System SpecsSystem Spec

  10. #10


    Quote Originally Posted by veldthui View Post
    Just because you have scanned for viruses and stuff and nothing was found does not mean there may still not be one there. It may be the scanner you are using does not know about that one.

    If it is being changed from auto back to manual then something is actually doing it. Did you remove the details of the old DNS numbers before reverting back to automatic?

    One thing to try is to find out what your current DNS is supposed to be and manually entering them in and leave it on static. That is how I run mine all the time.

    Yes I remove the details first.

    I do not want to force the DNS as the laptop changes locations frequently.

    Can you suggest a better virus check? I've scanned it with AVG, Avast, Malwarebytes, Windows Defender. What other scanner would you like me to try, because these found nothing.

    And just so I'm clear, the sole purpose of this 'virus' is to redirect my DNS to a specific companies host server? What virus would do this?
      My System SpecsSystem Spec

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ipv4 settings revert automatically, how can I stop this?
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