Windows 2012 share speed.

I have setup a new windows 2012 r2 essentials server for 10 users, it is a print and file server along with being the DC, dhcp and dns for the network.

I added the last 4 machines onto the domain this afternoon and all of a sudden the speed of accessing the shared folder is awfully slow, it can take 5 minutes to open a folder and opening pdf and word documents can cause a crash.

All machines are windows 7 except one old windows xp machine.

I have tried using name and ip, disabling smb2, disabling ipv6.

It has 2 x 1gb network cards bridged using ip and dns (itself) and gateway (draytek router).

Memory is 20gb and drives are 2x1tb, everything looks fine in task manager.

Any advice or guidance would be much appreciated
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What kind of switch?
You aren't using a HUB I hope.
David Johnson, CD, MVPRetiredCommented:
first mistake is by disabling things that you don't know what the effects are. Out of the box settings are correct for 99.9% of the installations. you have to first determine exactly where the bottleneck is. is is server disk i/o? is it network congestion? try disabling one network adapter on the server unless you are using 2 switches and each network adapter goes to a different switch.
Part of the problem is too much data running through two disks presumably set to raid 1. You are expecting too much from the drives.

If you can, drop two more drives in to the server, built to raid 1 (mirrored) and move your data on to these drives, things will come to life. Also make sure that your switches are all gigabyte.

You could also unbridge the network cards and run your data through one card.
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Muhammad BurhanManager I.T.Commented:
have you tried to copy files or something from clients ?

copy any 1GB or above (single) file in server from one partition to another partition for testing raid and hard drives performance.

change wire and switch port.
check if any driver update available.
check response of ping status to any of the client with 64000 bytes.
ping -t -l 64000.
clivingIOSAuthor Commented:
I fixed this by adding a new set of drives and moving the shares, it was just too much work for the 7k drives we had been provided with.

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clivingIOSAuthor Commented:
I've requested that this question be closed as follows:

Accepted answer: 0 points for GarveyJ's comment #a41400786

for the following reason:

fix provided by myself
David Johnson, CD, MVPRetiredCommented:
you have to first determine exactly where the bottleneck is. is is server disk i/o?
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Windows Server 2012

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