LAN connected but programs don't work

[Jaffar]

Hi everyone, I have a problem with my Local Area connection and was wondering if someone could help.

I just re-formatted my hard drive and installed Windows XP, as well as the latest updates (including Service Pack 2). Everything was working fine, then without warning, I started to lose connectivity in all my programs like Internet Explorer, MSN Messenger, Outlook Express etc. All this would suddenly occer even though I am still connected to the cable modem, with the icon in the system tray still showing active packets being sent and received.

I've tried running virus scans, ad-scans, spyware scans and everything is clean. Re-booting the computer helps, but the problem will occur immediately after a few minutes of connection. However, when I run the system in Safe mode, everything works perfect.

Since there is no visible disconnection from my LAN, it's very difficult to determine the problem. Running ipconfig /all and /renew seem to show no problems. I have no idea why my programs would suddenly fail to detect an internet connection.

I hope someone here can help me out! Thanks a lot!

[classicsoftware]

The first thing I would try is the network cable. The nest thing I would do is run Hijack this and post a log.

[Variable]

Why did you reformat the computer?

[Jaffar]

Logfile of HijackThis v1.99.1
Scan saved at 4:11:43 PM, on 7/2/2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\S24EvMon.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Symantec AntiVirus\DefWatch.exe
C:\WINDOWS\System32\RegSrvc.exe
C:\WINDOWS\System32\RoamMgr.exe
C:\Program Files\Symantec AntiVirus\SavRoam.exe
C:\Program Files\Symantec AntiVirus\Rtvscan.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\Program Files\Intel\Switching\User\RoamSvc.exe
C:\WINDOWS\system32\ZCfgSvc.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\pctspk.exe
C:\Program Files\Apoint\Apoint.exe
C:\WINDOWS\System32\hkcmd.exe
C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkUFind.exe
C:\WINDOWS\system32\ServicesS.exe
C:\Program Files\Microsoft AntiSpyware\gcasServ.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\PROGRA~1\SYMANT~1\VPTray.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\Program Files\Apoint\Apntex.exe
C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
C:\Program Files\Common Files\Microsoft Shared\Works Shared\wkcalrem.exe
C:\Program Files\Microsoft AntiSpyware\gcasDtServ.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Outlook Express\msimn.exe
C:\DOCUME~1\Owner\LOCALS~1\Temp\Temporary Directory 4 for hijackthis.zip\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://us.rd.yahoo.com/customize/ycomp_adbe/defaults/sb/*http://www.yahoo.com/search/ie.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://us.rd.yahoo.com/customize/ycomp_adbe/defaults/sp/*http://www.yahoo.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O4 - HKLM\..\Run: [PCTVOICE] pctspk.exe
O4 - HKLM\..\Run: [Apoint] C:\Program Files\Apoint\Apoint.exe
O4 - HKLM\..\Run: [PRONoMgr.exe] C:\Program Files\Intel\NCS\PROSet\PRONoMgr.exe
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\System32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [WorksFUD] C:\Program Files\Microsoft Works\wkfud.exe
O4 - HKLM\..\Run: [Microsoft Works Portfolio] C:\Program Files\Microsoft Works\WksSb.exe /AllUsers
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkUFind.exe
O4 - HKLM\..\Run: [Windows TM] ServicesS.exe
O4 - HKLM\..\Run: [gcasServ] "C:\Program Files\Microsoft AntiSpyware\gcasServ.exe"
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~1\VPTray.exe
O4 - HKLM\..\RunServices: [Windows TM] ServicesS.exe
O4 - HKLM\..\RunOnce: [Windows TM] ServicesS.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [Windows TM] ServicesS.exe
O4 - HKCU\..\RunOnce: [Windows TM] ServicesS.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Microsoft Works Calendar Reminders.lnk = ?
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~4\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~4\OFFICE11\REFIEBAR.DLL
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?LinkId=39204&clcid=0x409
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1119770618422
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O20 - Winlogon Notify: NavLogon - C:\WINDOWS\System32\NavLogon.dll
O20 - Winlogon Notify: Sebring - C:\WINDOWS\System32\LgNotify.dll
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation (ccPwdSvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
O23 - Service: Symantec AntiVirus Definition Watcher (DefWatch) - Symantec Corporation - C:\Program Files\Symantec AntiVirus\DefWatch.exe
O23 - Service: Adapter Switching (IntelRoam) - Intel Corporation - C:\Program Files\Intel\Switching\User\RoamSvc.exe
O23 - Service: Intel NCS NetService (NetSvc) - Intel(R) Corporation - C:\Program Files\Intel\NCS\Sync\NetSvc.exe
O23 - Service: RegSrvc - Intel Corporation - C:\WINDOWS\System32\RegSrvc.exe
O23 - Service: RoamMgr - Intel Corporation - C:\WINDOWS\System32\RoamMgr.exe
O23 - Service: Spectrum24 Event Monitor (S24EventMonitor) - Intel Corporation - C:\WINDOWS\System32\S24EvMon.exe
O23 - Service: SAVRoam (SavRoam) - symantec - C:\Program Files\Symantec AntiVirus\SavRoam.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec AntiVirus - Symantec Corporation - C:\Program Files\Symantec AntiVirus\Rtvscan.exe

----------------------------------------------

I'm not sure if this had anything to do with it, but the problem started after my Symantec Anti-virus program detected (and deleted) this file:

C:\windows\system32\winxsys.exe

Threat: W32.Spybot.Worm

[Jaffar]

I reformatted my hard drive because I was having a problem with my LAN the previous installation. This time, the network would keep connecting and disconnecting every 15 seconds or so, to 'acquire network address'. I couldn't figure out how to solve this problem, but I know it was Kazaa that started it. I'm not planning to install any file-sharing programs in future to avoid this problem.

[Variable]

So you were having network problems and reformatted, reinstalled the OS and are having networking problems. Still think it was Kazaa?
Could have a hardware problem..