Suspected network fault

Hi Team,

We have a user on an XP PC connected to an SBS 2003 Server, all connected to the same switch.
The user runs a database process that transfers the data back and forth over the network, and every couple of weeks this process corrupts the whole database. So it looks like a network issue, how can I figure out which part of the network, I suspect the PC as this is the only network issue we're having, but I need to find a way to test it.

Thanks
optimus_nzAsked:
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optimus_nzConnect With a Mentor Author Commented:
We moved the critical app onto the server and RDP'd direct to run from there - everything is now running ok in that mode.
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Ashok DewanFreelancerCommented:
Have you checked event logs on that PC respect to that certain process ?
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optimus_nzAuthor Commented:
MRxSmb EventID 50

{Delayed Write Failed} Windows was unable to save all the data for the file \Device\LanmanRedirector. The data has been lost. This error may be caused by a failure of your computer hardware or network connection. Please try to save this file elsewhere.

This happens and there's an error tripping up the application which faults after this happens and generates an Application Error on the box for the app they're running.
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nobusCommented:
test with another lan card on the PC, and another connection on the lanswitch
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Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
Have you applied this hotfix yet?  http://support.microsoft.com/kb/890352

Jeff
TechSoEasy
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optimus_nzAuthor Commented:
Hi Team

Jeff - That applies to a SAN (this is on a local disk inside the server)... still apply it?
We replaced the NIC on the PC, and ran the tests on another PC, the same fault occurred. It's interesting to note we have zero problems on the network ever apart from this.
We're since running the process we need to do directly on the server to circumvent any issues and that's operating ok.
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nobusCommented:
i assume you found no problems in event viewer?
you could install an OS on spare disk, to test the problem; seems one of the only options left
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optimus_nzAuthor Commented:
suggesting the disk might be the fault?
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nobusCommented:
no - only a way to test further if the OS is the problem
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Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
How old are the drivers on your server's NICs?  Be sure they are up-to-date.

Also, have you reviewed this KB article yet:
http://support.microsoft.com/kb/948496

Jeff
TechSoEasy
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Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
sounds like a good workaround.
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optimus_nzAuthor Commented:
In the end this was the most logical solution for problem we had. Thank you to all who have contributed.
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