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NDIS.SYS high DPC execution time.

Unanswered NDIS.SYS high DPC execution time.

  • Saturday, January 26, 2013 3:31 AM
     
     
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    How can i fix this problem?  I tried to reformat and reinstall windows.   I had perfect latency for two days until today.  It seems to occur after installing and using Utorrent.  I tried another client had the same issue.   I hope this isn't Microsofts way of tracking torrents?    It was never an issue in windows xp.

    The issue goes away by restarting the pc.....or manually disabling base filtering engine and all its dependencies and restarting them again.  I believe it happened with NIS firewall too which i recently uinstalled for performance issues.  I now have MSE and windows firewall running.

    I believe this specifically has to do with windows 7 64  handling of many numerous connections.    Maybe there is a conflict with my on-board broadcom driver and windows 7 firewall?

    I believe this might be giving me general connection issues as well and causing slow performance  in some online games, in particular mmos that require lots of bandwidth, which i have through Verizon fios.

    What can i do to solve this issue if possible?  i have tried many diff network card driver versions to no avail.    I think this has specifically to do with windows handling of many connections.

    Thankyou in advance for your time and assistance with this matter.

    Rich.


    • Edited by RichAC Saturday, January 26, 2013 3:35 AM
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  • Monday, January 28, 2013 7:07 AM
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    Hi Rich,


    First, please scan the system for virus to check whether this is virus related issue.

    Then, try to temporarily disable firewall and anti-virus program to test the issue. Also boot into Safe Mode with networking to see how it work.

    In addition, please download the latest motherboard and network adapter drivers, also upgrade the BIOS.


    Thanks,


    Vincent Wang
    TechNet Community Support


     
  • Monday, January 28, 2013 7:46 AM
     
     
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       I have scanned for viruses and also updated my network adapter drivers and motherboard bios chipset, sound card....etc...

    I believe malwarebytes was causing it.  with malwarebytes disabled i'm not getting the issue.   If I just have windows firewall and MSE  everything seems fine so far.  I tried to report the issue to malwarebytes.  But they blame the fact I am using torrents and ignored it.  I'm not even positive now if is the torrents that caused the issue with them.  I can't remember if i had it installed before utorrent or if installed them at the same time.     but i will just stick with MSE  and use malwarebytes as an offline scanner.

    Tks for your reply.  Sorry for the confusion.

    Rich.




    • Edited by RichAC Monday, January 28, 2013 7:50 AM
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  • Saturday, March 02, 2013 5:45 AM
     
     
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    I had the same issue and blamed it on Windows 8.  It was Malwarebytes!  I even reinstalled Windows 7 and the second I installed MB it made the DPC spikes happen in 7!