Dropped internet connetion RRS feed

  • Question

  • I have a Gateway computer Mpdel GT5435E. Windows Defender send 2 messages:

              A system change was made by a known application

      Change type: Application Execution

      Application:  C:\Winwos\System 32\mswsock.dll  

    After that internet connetion is dropped.


    Other errors related:

           error code 80200010


           "cannot communicate with DNS server


    When I did a search for msnsock.dll, appear 3 reference to TrenMicro, one relate with TROJ_AGENT.IKZ


    What can I do to fix this?



    Juan V Principe

    Friday, November 28, 2008 3:11 PM


  • Hello Juan,


    Before going any further, I wonder whether you installed some update packages or software on the computer recently. If so, you might try restoring the system back to the point before the issue occurred.


    System Restore

    1) Before we start, please close all open files and close all open programs.

    2) Click Start; click All Programs; click Accessories; click System Tools; and click System Restore. The System Restore user interface should appear.

    3) Click Next.

    4) From the restore points available, select an appropriate restore point before problem occurs and click Next.

    5) Click Next again. The restore process will run and your system will restart automatically.


    For more information, please refer to the article below:



    If the problem persists, please continue with the instructions below to narrow down the issue.


    1. Try online scan http://www.trendsecure.com/portal/en-US/tools/security_tools/housecall or http://www.processlibrary.com/directory/files/mswsock/21635


    2. Manually download the mswsock.dll from the following hyperlink; unzip the file and copy it to C:\Winwos\System 32 folder



    3. Temporarily disable/uninstall all Anti-Virus firewalls or programs


    4. Run IE with No Add-ons

    Click Start, copy and paste Internet Explorer (No Add-ons) into Start Search box and press Enter. Change the cookie settings and have a test.


    5. Reset IE7

    1) Click Start button-> Control Panel.

    2) Change to Classic View on the left pane and double-click the Internet Options icon.

    3) On the Security tab, click Default level button for each icon in the Select a zone to view or change security settings.

    4) Click to Programs tab, and then click the Make default button if it is not grayed out.

    5) Click to Advanced tab, click Restore advanced settings button in the Settings area.

    6) Click the Reset button in the Reset Internet Explorer settings area and Click OK.

    7) Click Apply, and then click OK.


    4. Terminate third-party conflicts


    Run Windows Safe Mode 

    1) Detach all unnecessary peripheral devices from your computer, such as printers, scanners and removable storage devices.

    2) Restart the computer.

    3) Keep pressing the F8 key until the Windows Startup menu appears.

    4) Choose Safe Mode with Networking, and press Enter.

    5) Test the issue in Safe Mode to see if the issue still exists.

    Note: In Safe Mode, your system display and Desktop will look and perform differently than in Normal Mode. This is only temporary.


    If the issue does not occur in safe mode, let’s try a Clean Boot to test the issue.


    Start Windows in Clean Boot mode

    Note: You must be logged on as an administrator or a member of the Administrators group to complete this procedure.

    1) Click Start.

    2) Copy and paste "msconfig" (without the quotation marks) in the Start Search box, and click Enter.

    3) Switch to Services tab and then Check Hide All Microsoft Services.

    4) Click Disable All.

    5) Switch to the Startup tab and then Click Disable all.

    6) Click OK.

    7) Click Restart to restart the computer and test the issue.


    Good Luck!

    Monday, December 1, 2008 7:32 AM