Slow performance bewteen Windows 7 64 and Server 2003

I have a networked Windows 7 64 desktop workstation on a Gigabyte network connection with a Dell SC 1430 Server 2003 which is the Domain Controller.  The server simply provides file & print services as well as a SQL Server 2008 R2 instance. Starting about two months ago, performance thru my SQL Client app and File Explorer has been terrible. I have search the internet until blue and the few things I have found, have not affected the performance either way. I have a Windows 7 x86 Laptop that connects to the same network on a 10/100 nic and there is not a performance problem.

I have tried:
 - Disabling the Background intelligent transfer service

 - netsh interface tcp set global autotuninglevel=disabled

 - Disabling the IPV6 interface

 - Turning off the LLMNR protocol via the GPEdit.msc

I did see a couple of notes out there of some people just reinstalling Windows 7 and the problem went away until the Windows Update brought the install up to date.

Anyone have any ideas on how to fix this?
csalernoAsked:
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pgm554Commented:
Check the duplex settings on the network cards,EVERYTHING needs to be set to auto.

That includes the switch if it has manual duplex settings.

Make sure all of the nic drivers are up to date.
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csalernoAuthor Commented:
Checked both the Desktop Windows 7 64 and Server nic, both are up to date and set to Auto on the Duplex. Didn't see a setting on the Linksys EA2700.
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pgm554Commented:
Linksys EA2700 should be auto by default.

I would down load iperf and set it up and test connections just to eliminate infrastructure.

http://www.wlanpros.com/wp-content/uploads/2011/02/How-to-Guide-on-JPerf-and-IPerf1.pdf

http://sourceforge.net/projects/iperf/

http://sourceforge.net/projects/jperf/

Post results.
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csalernoAuthor Commented:
Is there any "already compiled" versions of this?
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pgm554Commented:
Pretty simple

Copy  iperf into it's own directory

open up command line in windows and change to that directory

To set up one as server

iperf -s   then enter

To set up one as client

iperf -c (the iperf server IP address)

It will then give you speed of the connections.

Copy and paste it into this thread.
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csalernoAuthor Commented:
It has to be built. Don't have a C development environment. Will take a while.
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csalernoAuthor Commented:
Don't have the compiler for this project. This does not look like an option unless you can direct me to the application exe.
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csalernoAuthor Commented:
I finally found a compiled version of the program and ran from my client and got the following:

H:\iPerf\jperf-2.0.2\bin>iperf -c 192.168.2.107
connect failed: Connection refused


192.168.2.107 is the ip of my Server 2003
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csalernoAuthor Commented:
OK, I figured it out. here is what I got from the default config. Let me know if you need further configuration.



bin/iperf.exe -c 192.168.2.107 -P 1 -i 1 -p 5001 -f k -t 10
------------------------------------------------------------
Client connecting to 192.168.2.107, TCP port 5001
TCP window size: 8.00 KByte (default)
------------------------------------------------------------
[156] local 192.168.2.116 port 5323 connected with 192.168.2.107 port 5001
[ ID] Interval       Transfer     Bandwidth
[156]  0.0- 1.0 sec  48.0 KBytes   393 Kbits/sec
[156]  1.0- 2.0 sec  0.00 KBytes  0.00 Kbits/sec
[156]  2.0- 3.0 sec  0.00 KBytes  0.00 Kbits/sec
[156]  3.0- 4.0 sec  0.00 KBytes  0.00 Kbits/sec
[156]  4.0- 5.0 sec  8.00 KBytes  65.5 Kbits/sec
[156]  5.0- 6.0 sec  0.00 KBytes  0.00 Kbits/sec
[156]  6.0- 7.0 sec  0.00 KBytes  0.00 Kbits/sec
[156]  7.0- 8.0 sec  0.00 KBytes  0.00 Kbits/sec
[156]  8.0- 9.0 sec  0.00 KBytes  0.00 Kbits/sec
[156]  9.0-10.0 sec  0.00 KBytes  0.00 Kbits/sec
[156] 10.0-11.0 sec  0.00 KBytes  0.00 Kbits/sec
[156] 11.0-12.0 sec  0.00 KBytes  0.00 Kbits/sec
[156] 12.0-13.0 sec  0.00 KBytes  0.00 Kbits/sec
[156] 13.0-14.0 sec  0.00 KBytes  0.00 Kbits/sec
[156]  0.0-14.0 sec  64.0 KBytes  37.4 Kbits/sec
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pgm554Commented:
And this is on the gig network?

Tons of drops from what I can see.

Try this and post results.

http://netspeed.stanford.edu:7123/

Looks like infrastructure issue of some sorts.

Would change switch,then NIC ,then cable.
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csalernoAuthor Commented:
It came back with:

C2S Throughput Test FAILED!
running 10s inbound test (server to client)   Protocol Error


Does that narrow it down?
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pgm554Commented:
I would run the ndt test on all of the affected units and see if the fail in the same way.

If they do ,then you know it's either the router or ISP.

Also ,in the statistics tab,post those results.
Want to make sure there are no wiring issues.
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csalernoAuthor Commented:
the screen doesn't allow me to copy\paste even though it states to copy use CTRL C.

What NDT test are you referring too?
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pgm554Commented:
That's a java security thing these days.

Can you use the snipping tool in W7 to copy and paste the messages?
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csalernoAuthor Commented:
I have the test and the stats attached
network1.GIF
network2.GIF
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pgm554Commented:
The 7 box looks fine.
What about the server 2003 box?
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csalernoAuthor Commented:
Attached.
Server-Stats.GIF
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csalernoAuthor Commented:
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pgm554Commented:
Whoa!

Looks like a bad duplex thing on the W7.

Note the up and down speed of the server is around 5 megabits and the outbound speed on the W7 is 205 k and about 5 megabits down..

Are you running SDSL?

Something not right there.
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csalernoAuthor Commented:
Not sure about the SDSL, where would I check to find out?
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csalernoAuthor Commented:
I'm using Time-Warner business class internet service, but my problem is strictly on the LAN side.
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pgm554Commented:
DSL comes in a number of flavors when it comes to the internet ,
Asymmetric DSL is cheaper,but is faster down than it is up .
Symmetric DSL is the same speed up and down.
Usually more expensive
When I saw the first W7 capture I thought it was ADSL 384 up and 5 down.
But the server shows same up and down,so something is misconfigured.
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pgm554Commented:
> but my problem is strictly on the LAN side.

The W7 capture is showing a duplex issue that affects it's performance on the network in general.

Doesn't matter if it's LAN or WAN ,it's dropping packets.
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csalernoAuthor Commented:
What do you suggest?

Attached are screen shots of the Status screen on the Linksys.
Router-Wireless.GIF
Router-WAN.GIF
Router-Ports.GIF
Router-Lan.GIF
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csalernoAuthor Commented:
This is from the laptop running Win 7 32bit going thru the same Linksys to the Server 2003.
Does this mean that the problem is with the Win 7 64?

bin/iperf.exe -c 192.168.2.107 -P 1 -i 1 -p 5001 -f k -t 10
------------------------------------------------------------
Client connecting to 192.168.2.107, TCP port 5001
TCP window size: 8.00 KByte (default)
------------------------------------------------------------
[128] local 192.168.2.117 port 54269 connected with 192.168.2.107 port 5001
[ ID] Interval       Transfer     Bandwidth
[128]  0.0- 1.0 sec  10472 KBytes  85787 Kbits/sec
[128]  1.0- 2.0 sec  9872 KBytes  80871 Kbits/sec
[128]  2.0- 3.0 sec  10256 KBytes  84017 Kbits/sec
[128]  3.0- 4.0 sec  10256 KBytes  84017 Kbits/sec
[128]  4.0- 5.0 sec  9912 KBytes  81199 Kbits/sec
[128]  5.0- 6.0 sec  9840 KBytes  80609 Kbits/sec
[128]  6.0- 7.0 sec  9824 KBytes  80478 Kbits/sec
[128]  7.0- 8.0 sec  9824 KBytes  80478 Kbits/sec
[128]  8.0- 9.0 sec  9008 KBytes  73794 Kbits/sec
[128]  9.0-10.0 sec  10080 KBytes  82575 Kbits/sec
[128]  0.0-10.0 sec  99352 KBytes  81376 Kbits/sec
Done.
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csalernoAuthor Commented:
I swapped out the network cable between the Win7 64 and Linksys and now performance is back to normal.

Thanks for all your help.



bin/iperf.exe -c 192.168.2.107 -P 1 -i 1 -p 5001 -f m -t 20
------------------------------------------------------------
Client connecting to 192.168.2.107, TCP port 5001
TCP window size: 0.01 MByte (default)
------------------------------------------------------------
[156] local 192.168.2.116 port 6628 connected with 192.168.2.107 port 5001
[ ID] Interval       Transfer     Bandwidth
[156]  0.0- 1.0 sec  3.88 MBytes  32.5 Mbits/sec
[156]  1.0- 2.0 sec  3.90 MBytes  32.7 Mbits/sec
[156]  2.0- 3.0 sec  3.95 MBytes  33.2 Mbits/sec
[156]  3.0- 4.0 sec  4.19 MBytes  35.1 Mbits/sec
[156]  4.0- 5.0 sec  4.12 MBytes  34.5 Mbits/sec
[156]  5.0- 6.0 sec  4.04 MBytes  33.9 Mbits/sec
[156]  6.0- 7.0 sec  3.99 MBytes  33.5 Mbits/sec
[156]  7.0- 8.0 sec  4.53 MBytes  38.0 Mbits/sec
[156]  8.0- 9.0 sec  4.04 MBytes  33.9 Mbits/sec
[156]  9.0-10.0 sec  4.22 MBytes  35.4 Mbits/sec
[156] 10.0-11.0 sec  4.17 MBytes  35.0 Mbits/sec
[156] 11.0-12.0 sec  4.16 MBytes  34.9 Mbits/sec
[156] 12.0-13.0 sec  3.62 MBytes  30.3 Mbits/sec
[156] 13.0-14.0 sec  4.37 MBytes  36.6 Mbits/sec
[156] 14.0-15.0 sec  4.30 MBytes  36.1 Mbits/sec
[156] 15.0-16.0 sec  4.33 MBytes  36.3 Mbits/sec
[156] 16.0-17.0 sec  4.30 MBytes  36.0 Mbits/sec
[156] 17.0-18.0 sec  4.42 MBytes  37.1 Mbits/sec
[156] 18.0-19.0 sec  4.20 MBytes  35.3 Mbits/sec
[156] 19.0-20.0 sec  4.28 MBytes  35.9 Mbits/sec
[ ID] Interval       Transfer     Bandwidth
[156]  0.0-20.0 sec  83.0 MBytes  34.8 Mbits/sec
Done.
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