SP1 for Vista causes network problems: NIC is getting disabled and reactivated in a loop. Intel PRO/1000
Hello, after installing SP1 for Vista I constantly get networking problems with my Intel PRO/1000 MT Server Adaptor as well as the Intel PRO/1000 MT Workstation/Dekstop Adaptor on Dell Vostro 400 Pcs. I'm using Vista Business 32 bit, there are no firewall programs on the client pcexcept for the integratedwindows firewall. The sympoms are that I can not access the network and a ping show lost packets. The problem persists for 10 to 15 seconds and then everything is working for about 20 seconds until the problem is starting again. I get repeated disconnects from the network one could say. When having a look at the link- and activity-leds on the nic itself I can see that both are turning dark as soon as the problem occurs. This isn't a normal behaviour as the lights should stay on! Before SP1 I didn't have these problems and the lights on the nic stayed on. The status of the lan connection in Vista's networking center cycles between "deactivated, network enviornment detection (don't know the exact english notation) and connected" all the time :-( I tried the new nic driver from Windowsupdate that became available after the installation of SP1 but it didn't solve the problem. Even the latest driver from www.intel.com with version 8.3.9.0 from 08.01.2008 doesn't help. My next was to fix the speed/duplex at 1000/full which didn't help so I went back to auto/auto. I don't know what else to do. For now I have switched back the the onboard 100m nic but I'd like to use my Intel PRO/1000. Any ideas what one could do? Thanks, Gunther
March 25th, 2008 11:24pm

still the same problem... any ideas, please?
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March 5th, 2009 1:15am

re-install your operating system. and install ananti-virus.
April 4th, 2009 9:49pm

Hello Stephen, great idea and thanks for your help. I found an even simpler solution: throw your computer out of the window and buy a new one. Problem solved. You are getting that your hint wasn't really let's say "helpful"? My solution was to uninstall vpc and use vmware instead. Not what I inteded - but at least it's working. I'm still hoping to find a solution though.
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April 5th, 2009 3:29am

You have to configure Link speed of network card as per your network speed.It may be 10/100 Half duplex and your network card is 10/100/1000 so this prob occurs. Now your link speed may be in auto negotiate or in auto detect speed so make it proper as per your network card.
April 14th, 2009 8:11am

Have you tried putting a loopback plug into the NIC? If you're not good at wiring, you can buy one for $10-15US. Google for SuperLooper Gigabit Loopback Jack and Plug. If you are good at wiring, then here is the wiring diagram: http://www.tikkiweb.net/loopbackIf you have the same problem with the loopback plug, then the problem is with the NIC or software, but I would venture to guess hardware.If the NIC is good, then repeat with the switch. If all that's good, replace the cabling. If all that is good, then the problem is somewhere with the software, as you have eliminated all hardware problems.
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April 22nd, 2009 4:02am

Hello, the problem could be solved by completely erasing the system, installing Vista again, then the SP and after all the Virtual PC. That sucks pretty much, but anywy.. now things are working again. Thanks for your suport.
September 18th, 2010 6:05pm

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