Modem Router not Connecting

[saspinall]

Hello

We have a Buffalo WBMR-G54 Wireless ADSL2+ Modem Router connected via Ethernet cable to our main pc. We also have a Gateway laptop which we can use on the wireless network created by the Buffalo Router and we use the internet through the Buffalo Router through the network cable. This has worked fine for weeks now, but this morning the main pc will not connect to the internet. The router is still working ok as the laptop connects through the wireless connection. I have hooked up the laptopt through the network cable and accessed the admin page of the router, so the cable is working fine. I can see the network card on the pc using ipconfig. I have tried repairing the connection and have uninstalled and re-installed the network card in the pc and have also tried several network cables but to no avail. I cannot ping from the main pc to the router. I think thats all i have tried. Anyone any ideas why it suddenly has stopped accessing the internet.

Thanks in advance

Stuart

 

[Cinders]

The problem could be firewall, hardware or viral in nature. The first thing I'd do because it's easy would be to restart all the devices involved. So unplug the router and modem from the wall wait thirty seconds and plug the modem back into the wall. Let the modem fully boot and then plug the router back into the wall and let it fully boot and then boot your computer. Check to see if you have internet access.

If that didn't work then I'd try removing the router from the equation. Connect your PC directly to the modem with the ethernet cable. If that didn't work then at least we pretty much know that your computer is the source of the problem, but you did fairly well in establishing that with your first post.

 

[saspinall]

Cheers but I have since tried all that. I have even reset the router passwords etc by connecting the laptop to it through the ethernet connections. I can ping the router from the laptop through the ethernet connection but cant from the main pc, even though the network card light is on green. Beginning to think Network card maybe goosed.

 

[Cinders]

Your firewall could be blocking all internet access, or you may have a false proxy setup in Internet Options under the Connections tab, but the easy answer is, like you said, your NIC is broken. If it's built on the motherboard you will need to disable it in your motherboard's BIOS and uninstall the driver software before you install a new card. If it's an add-in you will still need to uninstall its driver software and take out the old card before you install the new card.

Before you spend any money on a new Network Interconnect Card, I'd at least download HijackThis. Rename HiJackThis to Crusty and then place the exe into a folder named HJT and then place that into your Program Files folder. Run HijackThis and attach the log file to a post in this thread. Then we can take a look at it and see if there is anything naughty runing on your computer that might block internet access.

 

[saspinall]

Thanks, OK i will do the log. Reason I think it is the NIC is that when I connect the laptop to the router using an ethernet cable, I can open a cmd window and ping the router no problem. When I try the same on the main pc i get a timed out error for the ping. Its as though the NIC is working ok apart from communicating to other devices. Does this seem feasible


Stuart

 

[saspinall]

Here's the log, thanks for your time

Logfile of Trend Micro HijackThis v2.0.0 (BETA)
Scan saved at 17:39:16, on 26/10/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Sygate\SPF\smc.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\CTHELPER.EXE
C:\Program Files\SSC Service Utility\ssc_serv.exe
C:\Program Files\NavNT\vptray.exe
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\Java\jre1.6.0_03\bin\jusched.exe
C:\Program Files\Messenger\msmsgs.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\PROGRA~1\INCRED~1\bin\IMApp.exe
C:\Program Files\NavNT\defwatch.exe
C:\Program Files\NavNT\rtvscan.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\MsgSys.EXE
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\HJT\Crusty.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.co.uk/
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: ShoppingReport - {100EB1FD-D03E-47FD-81F3-EE91287F9465} - C:\Program Files\ShoppingReport\Bin\2.0.22\ShoppingReport.dll
O2 - BHO: Share_Accelerator_MM toolbar - {4596013b-6c31-408b-a266-deae5c086dc2} - C:\Program Files\Share_Accelerator_MM\tbShar.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.0.301.7164\swg.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: Share_Accelerator_MM toolbar - {4596013b-6c31-408b-a266-deae5c086dc2} - C:\Program Files\Share_Accelerator_MM\tbShar.dll
O4 - HKLM\..\Run: [AsioReg] REGSVR32 /S CTASIO.DLL
O4 - HKLM\..\Run: [CTHelper] CTHELPER.EXE
O4 - HKLM\..\Run: [CTxfiHlp] CTXFIHLP.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [SmcService] C:\PROGRA~1\Sygate\SPF\smc.exe -startgui
O4 - HKLM\..\Run: [EPSON Stylus D88 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATIABE.EXE /P23 "EPSON Stylus D88 Series" /O6 "USB001" /M "Stylus D88"
O4 - HKLM\..\Run: [REGSHAVE] C:\Program Files\REGSHAVE\REGSHAVE.EXE /AUTORUN
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [SSC Service Utility] C:\Program Files\SSC Service Utility\ssc_serv.exe /s
O4 - HKLM\..\Run: [vptray] C:\Program Files\NavNT\vptray.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_03\bin\jusched.exe"
O4 - HKCU\..\Run: [IncrediMail] C:\Program Files\IncrediMail\bin\IncMail.exe /c
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKUS\S-1-5-19\..\RunOnce: [SetDefaultMIDI] MIDIDEF.EXE /s:'Creative SoundFont Synthesizer' /w:'SB Audigy' (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\RunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\RunOnce: [nlpo_01] cmd.exe /c md "%USERPROFILE%\Local Settings\Temp" (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\RunOnce: [nlpo_02] rundll32 advpack.dll,DelNodeRunDLL32 "%SystemRoot%\System32\dllcache" (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\RunOnce: [nlpo_03] cmd.exe /c md "%SystemRoot%\System32\dllcache" (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\RunOnce: [nlpo_04] cmd.exe /C move /Y "%SystemRoot%\System32\syssetub.dll" "%SystemRoot%\System32\syssetup.dll" (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\RunOnce: [nlpo_05] rundll32 advpack.dll,LaunchINFSection nlite.inf,nLiteReg (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\RunOnce: [nlpo_06] rundll32 advpack.dll,LaunchINFSection nlite.inf,S (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\RunOnce: [SetDefaultMIDI] MIDIDEF.EXE /s:'Creative SoundFont Synthesizer' /w:'SB Audigy' (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\RunOnce: [SetDefaultMIDI] MIDIDEF.EXE /s:'Creative SoundFont Synthesizer' /w:'SB Audigy' (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\RunOnce: [SetDefaultMIDI] MIDIDEF.EXE /s:'Creative SoundFont Synthesizer' /w:'SB Audigy' (User 'Default user')
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~1\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~1\OFFICE11\REFIEBAR.DLL
O9 - Extra button: ShopperReports - Compare product prices - {C5428486-50A0-4a02-9D20-520B59A9F9B2} - C:\Program Files\ShoppingReport\Bin\2.0.22\ShoppingReport.dll
O9 - Extra button: ShopperReports - Compare travel rates - {C5428486-50A0-4a02-9D20-520B59A9F9B3} - C:\Program Files\ShoppingReport\Bin\2.0.22\ShoppingReport.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O22 - SharedTaskScheduler: Browseui preloader - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Apple Mobile Device - Apple, Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: DefWatch - Symantec Corporation - C:\Program Files\NavNT\defwatch.exe
O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Norton AntiVirus Client (Norton AntiVirus Server) - Symantec Corporation - C:\Program Files\NavNT\rtvscan.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Sygate Personal Firewall Pro (SmcService) - Sygate Technologies, Inc. - C:\Program Files\Sygate\SPF\smc.exe

--
End of file - 7499 bytes

 

[saspinall]

i noticed when I did the hijackthis log that one of the last lines mentioned sygate personal firewall. I ve uninstalled this and hey presto, my internet connection has sprung back to life.

Thanks for helping

Stuart