1.    09 Feb 2017 #1
    Join Date : Feb 2017
    Posts : 3
    Windows 10 Home

    BSOD when using Cisco VPN - Driver Corrupted Expool (0x000000C5)


    Whenever I connect to work network using Cisco VPN 4.2, I get BSOD almost all the time. Sometimes after an hour and sometimes immediately after I'm connected and using RDP.
    BSOD when using Cisco VPN - Driver Corrupted Expool (0x000000C5) Attached Files
      My ComputerSystem Spec
  2.    10 Feb 2017 #2
    Join Date : Jan 2016
    Posts : 643
    windows 10 Pro

    Both dumpfiles are
    BugCheck C5, {760e0017, 2, 0, fffff8027e0c4850}

    *** WARNING: Unable to verify timestamp for acsock64.sys
    *** ERROR: Module load completed but symbols could not be loaded for acsock64.sys
    Probably caused by : memory_corruption

    Followup: memory_corruption
    acsock64 Thu Oct 08 17:12:56 2015
    Also in your unloaded driver modules is vpnva64_6 Wed Feb 26 17:46:48 2014

    Both drivers belong to
    vpnva64-6.sys
    acsock64.sys

    Driver Description: Cisco AnyConnect Secure Mobility Client
    Driver Description: Cisco AnyConnect Secure Mobility Client Virtual Miniport Adapter Driver
    Driver Update Site: Security - Cisco AnyConnect Secure Mobility Client - Cisco

    Update to a newer version and hopefully this stops the BSOD.
      My ComputerSystem Spec
  3.    12 Feb 2017 #3
    Join Date : Feb 2017
    Posts : 3
    Windows 10 Home
    Thread Starter

    Thanks lifetec. Cisco VPN installation is provided by our company (I can't install any updates). I have a desktop (Windows 10 home). It works fine there. Only in my laptop this happens. I have had more BSODs since my last post. I have attached latest file now. (with more BSOD failures)

    Quote Originally Posted by lifetec View Post
    Both dumpfiles are


    acsock64 Thu Oct 08 17:12:56 2015
    Also in your unloaded driver modules is vpnva64_6 Wed Feb 26 17:46:48 2014

    Both drivers belong to
    vpnva64-6.sys
    acsock64.sys

    Driver Description: Cisco AnyConnect Secure Mobility Client
    Driver Description: Cisco AnyConnect Secure Mobility Client Virtual Miniport Adapter Driver
    Driver Update Site: Security - Cisco AnyConnect Secure Mobility Client - Cisco

    Update to a newer version and hopefully this stops the BSOD.
    BSOD when using Cisco VPN - Driver Corrupted Expool (0x000000C5) Attached Files
      My ComputerSystem Spec
  4.    12 Feb 2017 #4
    Join Date : Jan 2016
    Posts : 643
    windows 10 Pro

    All the dumpfiles from 10,11 and 12 again blames Cisco VPN client.

    I have a desktop (Windows 10 home). It works fine there. Only in my laptop this happens.
    Does the desktop has the same windows O.S version and build, are the same windows updates installed, are the same programs installed etc.?
    Is the installed Cisco version exactly the same?
    The installed version on your laptop might be corrupted?

    Normally no system is exactly the same.


    If you also cannot reinstall the program on your laptop (it might be corrupted) yourself, i would contact the ict-support of your company.
      My ComputerSystem Spec
  5.    12 Feb 2017 #5
    Join Date : Feb 2017
    Posts : 3
    Windows 10 Home
    Thread Starter

    Quote Originally Posted by lifetec View Post
    All the dumpfiles from 10,11 and 12 again blames Cisco VPN client.



    Does the desktop has the same windows O.S version and build, are the same windows updates installed, are the same programs installed etc.?
    Is the installed Cisco version exactly the same?
    The installed version on your laptop might be corrupted?

    Normally no system is exactly the same.


    If you also cannot reinstall the program on your laptop (it might be corrupted) yourself, i would contact the ict-support of your company.
    I understand no two systems are same (Just provided a reference as both are same OS version. Both have windows update turned on) Same version of Cisco VPN 4.2.

    In fact, I tried uninstalling and reinstalling Cisco VPN 4.2. I still got BSOD. One or two failures from previous post is after this reinstallation.

    Thanks for your assistance so far. I will contact my company. I have a feeling recent driver updates made to several components could be a cause (No errors in Device manager). I couldn't pin point which update might be causing this.
      My ComputerSystem Spec

 


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