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windows 2008 slow network

Posted on 2009-05-01
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Last Modified: 2013-11-21
In my network we use windows 2003 as fileservers, the clients are windows 2008 an 2003. The 2003 servers acces the network shares very quick. On windows 2008 this is very slow on some folders. This is not for all the users and het most time this happens on the administrator account. I tried multiple file servers.

I tried the following things:
- Diasble the global autotuning level
- disable ip V6
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Question by:rtjdamen
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LVL 58

Expert Comment

by:tigermatt
ID: 24281149

What antivirus are you running on the 2008 Servers?

Also attempt to disable all the 'Checksum Offload' settings on the NIC card.

-Matt
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Author Comment

by:rtjdamen
ID: 24281283
We use Norman Antivirus, i am absolute shure this can't be the reason, we tried this settings without virus control on new windows installations but that was exact the same problem.

Checksum offload disabling didn't solve the problem.

MAybe this helps, i found out that this only happens on folders that are redirected like the startmenu or the mydocuments directory, windows 2008 shows the folder name like start menu, while the real name is virtual. Really trange. I have the fealing that this causes the slow access.
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Accepted Solution

by:
tigermatt earned 1000 total points
ID: 24281347

I would uninstall the antivirus product and also disable the firewall on both the file server and the client machine which is connecting.

You need to fully uninstall the AV, not just disable it, as that is the only way to remove its hooks from the system.

-Matt
0
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Author Comment

by:rtjdamen
ID: 24281461
let's try this tomorow! thanks so far!
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Author Comment

by:rtjdamen
ID: 24287047
Thanks that whas the problem
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Author Closing Comment

by:rtjdamen
ID: 31576963
problem was caused by virus protection software
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