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Frequent disconnection from our LAN Connection


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#1 rsa101

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Posted 08 December 2010 - 06:59 PM

I have one PC under Windows XP at work that frequently disconnects from LAN and gets back over and over again. It's under sis 191 ethernet controller driver and the connection to it is very intermittent.

Can anyone suggest me what to do. I reinstalled the device driver and it is still the same problem. I checked the LAN Cable with a laptop and the signal is also strong and not intermittent at all. What other option can I do to solve this problem.

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#2 King1987

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Posted 09 December 2010 - 06:21 PM

If you have pinpointed this to your computer you probably need to replace the NIC.

#3 rsa101

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Posted 09 December 2010 - 06:24 PM

Can you be more specific how can this be done? What is NIC? and how to replace the NIC?

#4 King1987

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Posted 09 December 2010 - 06:59 PM

A NIC is a network interface card or also known as the Network Adapter. The NIC can be replaced by removing it from your Motherboard in the PCI slot. Looks like this.

By your reply I am assuming you haven't pinpointed it to your computer though?

Edited by King1987, 09 December 2010 - 07:00 PM.


#5 rsa101

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Posted 09 December 2010 - 07:04 PM

Oh ok so you are telling me this is a hardware problem already. I think the LAN is part of the motherboard here. I haven't checked that one since I am not a hardware techie on this things. So far yesterday the PC went on fine again. I do not know when this problem will surface again. But I will tell the office that it could be a hardware problem and not a software.

#6 King1987

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Posted 09 December 2010 - 07:15 PM

No, I was meaning if you had already pinpointed the problem to your computer that would be what I recommend checking. I don't know your job's network setup, but I am assuming if no other computers nearby are experiencing this and nothing has been changed on the computer (Software) I would switch out the cabling and/or test the NIC to see if it was the problem. Also this could be caused from a virus. When did this start happening? Does it happen only at certain times of the day?

#7 rsa101

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Posted 09 December 2010 - 08:32 PM

Right now we do not have an IT Departement to really look into this that is why I alone am tackling this problem. :D How would I know if it is a virus problem how can I check on this side of things.

When did this start happening?


Well it happened many times over already. There are times the connection is going on smoothly but there are times that it is not.

Does it happen only at certain times of the day?


I could not be certain but there are times that it took me the whole day that it is intermittent. But there are days that it is working okay.

Edited by rsa101, 09 December 2010 - 08:50 PM.


#8 King1987

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Posted 10 December 2010 - 12:30 AM

I'm not very knowledgeable about viruses, maybe someone else here can help you with that. When you said you tried it with your laptop I assume you meant you used the same cable you were using for the computer you are having problems with, right? If so, I would say it's most likely that your NIC isn't working right and needs replaced since you have already tried updating the drivers on it.




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