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Network shares slow on 2008 and 2012 servers

Posted on 2013-07-01
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Last Modified: 2013-08-10
Hi,

I don't have some specific error, but rather some observation. I have a SLA month contract with dozens of companies, taking care of over 100 Windows servers in different environments.
What I notice as a rule is very slow NETWORK DISCOVERY within all 2008 and 2012 server installations. On contrary, all (without exception) older server 2003 environments exhibit blazing fast network discovery.

Under "network discovery" I mean look and feel when either on SERVER or on CLIENT somebody clicks on "Network" in explorer and wants to browse the network.
In 2003 environments the network displays within 1 or 2 seconds...
...but in all 2008 or later environments, it takes at least 15 seconds and up to 1 minute to display all computers in network. They pop-up one by one slowly, as like it has all day long to finish the task.

Any idea why?
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Question by:Andrej Pirman
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Larry Struckmeyer MVP earned 500 total points
ID: 39291899
Somehow I seem to have commented in this thread twice.  Must have had multiple browsers open as I thought I had lost the page when first posted.  If the other does not show up, blame the internet gods.

Slow name resolution would normally be DNS, but can also be TCP Chimney offload.  Wonder if you have a habit of turning off IPV6?
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by:Andrej Pirman
ID: 39293995
No worry, only single post is displayed :)

Well, I HAD a habbit to turn off IPv6 in the past (on 2008 and newer systems), but I read somewhere on Technet that SBS must have IPv6 enabled to function properly, so I left it ON on all systems.
As all those are different systems, which were setup by dozens of different admins, I doubt it is an error in all systems. From my perspective it smells like default behavior, like bad design by MS, built-in into all 2008/Vista and newer systems.
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