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Sessions to a Windows 2003 file server are dropped randomly.

We have a Windows Server 2003 actingg as a file server, where a lot of big log files (approx 2Gigs) are stoered.
Windows XP and Windows 2k3 clients open these files locally on the client computers through SMB and process them, while the output files are also stored on the file server.
The problem is that sporadically during the log parsing, the network session between the client and the server gets disconnected and the parsing has to start all over from the beginning.
During the time the disconnect occurs, there are no lost ping packets with size of 64 Kbytes.
Immediately after the error occurs, the output of the "net stats server" shows that the sessions errored-out value is increased by one.
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sanbolic
Asked:
sanbolic
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3 Solutions
 
lnkevinCommented:
Sounds like some memory leaks. Did you check Task Manager to see your system resource during the error occurs?
Did reboot fix the problem?
What is your hardware configuration (CPU, Mem, Pagefile, NIC...)?

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lnkevinCommented:
Forgot to ask you, is the server RAID? What RAID?
Server brand? What SP is currently running?

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sanbolicAuthor Commented:
The server has a software RAID-5 configured and is also a secondary domain controller. There is no memory leak at the time of the disocnnects and has SP2 installed.
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JapyDoogeCommented:
Did you try it with another network card? Maybe the network card's buffer has a bug or something. I also suggest to update the system's firmware, this helps in a lot of such cases. So, BIOS, Ethernet firmware, RAID firmware and more.
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sanbolicAuthor Commented:
There can not be an issue with the NIC, since the ping requests are still working during the session resets.
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sanbolicAuthor Commented:
We have upgraded to Windows Server 2008 and the situation is much more stable now
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