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Whenever I try to write to a shared drive on my Win2K8 R2 machine. It writes some of the files to the server. However after a while the machine becomes unresponsive (cannot ping, not remote desktop, ..). All I can do is reboot the system.

In the eventlog i only have 2 events. One being EventId 41 (power lost) and 6008 (unexpected). That's all the information I have (thus none actually).

I have a screen attached to the machine, but when the machine becomes unresponsive the screen remains blank as if there is no computer attached.

Any ideas on how I can gather more information about what is happening? It is really curious that I can only reproduce this by writing data to it over the network (wireless).

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If I follow correctly, you don't have this issue if you write data to it locally ? If thats the case I would try the following 3 steps : disable the wifi card and test it with a wired connection , if that works re enable the card and update the wifi drivers, if that still isnt working replace the wifi card. – Geraint Jones Aug 30 '10 at 3:50
Thanks for the answer, but the server is of course connected by wire. The laptop from which I am copying is sending it wireless to a wifi router which sends it tru the wire to the server. – Patrick Aug 30 '10 at 7:24
How much data are you trying to write? Have you tried robocopy?… You could use procmon on the server to see what it does: – Grizly Aug 30 '10 at 7:28
Try disabling IPv6 on the server NIC card. – xeon Aug 30 '10 at 16:22
Disabled IPv6 and was able to copy over 10 gig without any problems. Currently trying to copy more data, and so far it is looking good. Thanks for the tip. – Patrick Sep 1 '10 at 19:21

Is this an older or newer machine? It does sound like a hardware problem, but without a BSOD or some kind of dump, there isnt much to tell. Memory is often times a cheap test item that can easily be replaced to further troubleshoot. I had a small ITX server do the exact same thing with new memory, and replacing the memory did fix my problem. It's a shot in the dark, but at least one step closer.

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The machine is 2 years old. Memory has just been replaced and diagnostics signal no errors. The problem is that no memory dump or BSOD is available (maybe it is, but I cannot see anything because my screen goes black after it all happens). Any ideas how to increase logging that I can actually see what the computer was doing when it became unresponsive (if it is actually still doing something?) – Patrick Aug 30 '10 at 7:27

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