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Sudden loss of internet access

Discussion in 'Networking' started by mediumsteve, Jul 15, 2009.

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  1. mediumsteve

    mediumsteve Thread Starter

    Joined:
    Jul 15, 2009
    Messages:
    3
    So I'm having a very annoying issue. At around 11pm last night, my PC completely lost access to the internet. It is definitely not my connection, as the two other PCs in my house which are connected through the same router as mine still have access to the internet. However, if I use system restore and restore my PC to July 12 (about 3 days ago), my internet connection works fine. However, if I wait another 6 hours or so the same thing will happen and I have no idea what's causing it.

    I'm running Windows XP SP3. The only software that I've installed in the past week or so is Belarc Advisor (which I recently uninstalled) and the Heroes of Newerth Beta client (it's a game). Other than that I have no knowledge of anything else installed on my PC.

    I have attempted some fixes with no avail. I've reinstalled my ethernet drivers. I've done a complete scan of my computer using ESET Smart Security 4. I uninstalled both of those applications that I previously mentioned. Unfortunately none of it has worked and I have a feeling that my internet access will cut out again at any moment in which I will be forced to use system restore again. And no, I don't have any ZoneAlarm products installed. Could that windows update possibly have affected other software?

    Oh and one more thing! I have also used system restore to an earlier restore point (I think it was July 9th or 10th) and my internet access did not work. I have tried any restore points earlier than that, but I found it strange that it works on the July 12 restore point and not the earlier one.
     
  2. mediumsteve

    mediumsteve Thread Starter

    Joined:
    Jul 15, 2009
    Messages:
    3
    Oh, and for fun here's a HijackThis log!

    Logfile of Trend Micro HijackThis v2.0.2
    Scan saved at 3:38:19 AM, on 7/15/2009
    Platform: Windows XP SP3 (WinNT 5.01.2600)
    MSIE: Internet Explorer v6.00 SP3 (6.00.2900.5512)
    Boot mode: Normal

    Running processes:
    C:\WINDOWS\System32\smss.exe
    C:\WINDOWS\system32\winlogon.exe
    C:\WINDOWS\system32\services.exe
    C:\WINDOWS\system32\lsass.exe
    C:\WINDOWS\system32\nvsvc32.exe
    C:\WINDOWS\system32\svchost.exe
    C:\WINDOWS\System32\svchost.exe
    C:\WINDOWS\system32\spoolsv.exe
    C:\WINDOWS\Explorer.EXE
    C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
    C:\Program Files\Bonjour\mDNSResponder.exe
    C:\Program Files\Java\jre6\bin\jqs.exe
    C:\Program Files\NVIDIA Corporation\nTune\nTuneService.exe
    C:\WINDOWS\system32\svchost.exe
    C:\Program Files\NVIDIA Corporation\System Update\UpdateCenterService.exe
    C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcAppFlt.exe
    C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcIp.exe
    C:\WINDOWS\system32\wscntfy.exe
    C:\WINDOWS\RTHDCPL.EXE
    C:\WINDOWS\system32\RUNDLL32.EXE
    C:\Program Files\Java\jre6\bin\jusched.exe
    C:\Program Files\AIM\aim.exe
    C:\Program Files\Steam\Steam.exe
    C:\Program Files\DAEMON Tools Lite\daemon.exe
    C:\WINDOWS\System32\svchost.exe
    C:\WINDOWS\system32\wuauclt.exe
    C:\Program Files\Mozilla Firefox\firefox.exe
    C:\WINDOWS\system32\rundll32.exe
    C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

    R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
    O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
    O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
    O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
    O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
    O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
    O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
    O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
    O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
    O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"
    O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime
    O4 - HKCU\..\Run: [AIM] C:\Program Files\AIM\aim.exe -cnetwait.odl
    O4 - HKCU\..\Run: [Steam] "C:\Program Files\Steam\Steam.exe" -silent
    O4 - HKCU\..\Run: [DAEMON Tools Lite] "C:\Program Files\DAEMON Tools Lite\daemon.exe" -autorun
    O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
    O9 - Extra button: AIM - {AC9E2541-2814-11d5-BC6D-00B0D0A1DE45} - C:\Program Files\AIM\aim.exe
    O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
    O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
    O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
    O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
    O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
    O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
    O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
    O10 - Unknown file in Winsock LSP: c:\windows\system32\nvlsp.dll
    O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
    O23 - Service: Bonjour Service - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
    O23 - Service: ForceWare Intelligent Application Manager (IAM) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcAppFlt.exe
    O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
    O23 - Service: ForceWare IP service (nSvcIp) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcIp.exe
    O23 - Service: Performance Service (nTuneService) - NVIDIA - C:\Program Files\NVIDIA Corporation\nTune\nTuneService.exe
    O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
    O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - CACE Technologies - C:\Program Files\WinPcap\rpcapd.exe
    O23 - Service: Update Center Service (UpdateCenterService) - NVIDIA - C:\Program Files\NVIDIA Corporation\System Update\UpdateCenterService.exe

    --
    End of file - 4900 bytes
     
  3. blakcshadow

    blakcshadow

    Joined:
    Nov 25, 2008
    Messages:
    458
    Try running HJT before then after you lose your internet connection. Its probably an event-specific virus.
    Posted via Mobile Device
     
  4. mediumsteve

    mediumsteve Thread Starter

    Joined:
    Jul 15, 2009
    Messages:
    3
    Alright, next time the internet connection goes out I will create another HJT log and post it.
     
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