Internet stop working when i connect a partic

Dell Optiplex 760
October 22, 2009 at 03:53:50
Specs: Windows XP
Hi
I have a network with 48 PCs among which 43
PCs are clients of a windows 2003 domain
controller and others are not a part of domain.
DSL router is connected to the main switch
through which everyone is accessing internet.
Now my problem is, when i try to connect one
particular computer(Dell Optiplex 760 with
Windows XP Pro) to an edge switch(which is
connected to the main switch), everyone's
internet gets disconnected. As soon as I
remove it from network, internet is working as
before. I formated the particular computer
completely and re-installed.Well,it worked for
few days and now the problem started again.
Weird part is sometimes the same computer
works in the same network without making
any problem. Anyone has any clue about such
a problem? I couldn't find any suspicious
programs running also. Please help...Thank
you in advance.

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#1
October 22, 2009 at 05:35:04
Now my problem is, when i try to connect one
particular computer(Dell Optiplex 760 with
Windows XP Pro) to an edge switch(which is
connected to the main switch), everyone's
internet gets disconnected. As soon as I
remove it from network, internet is working as
before

Is only the internet affected or does all network communication (both WAN and LAN) stop?

Does this happen if you plug any other client in the "edge" switch?

What kind of switches are you using (make/model) and how ar the connected?

Oh and just FYI, if you notice my post you'll see it wordwraps automatically so you don't have to worry about it.


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#2
October 25, 2009 at 02:24:14
Hi,
Thank you very much for your reply. Finally after many attempts, I could figure out that the problem was with the NIC card of this computer. After fixing a new Network card to the PCI slot, everything is working fine now. Though not very clear about the technical reason, I guess the reason is some hardware malfunction which results in sending abnormal data packets to the network. May be happy Any idea??
Thank you....hav a nice day...

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