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I'm dealing with slow transfer speeds on our network to a certain server.

Posted on 2014-10-31
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Last Modified: 2014-12-02
I have a Windows Server running Windows Server 2003 Standard 32bit.  When i transfer files from client computers to that server i'm only getting speeds of around 25-35mb per second.  When i transfer files to another server i'm around 110mb per second.  I need some ideas on what to try to troubleshoot this issue.  Thank you
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Question by:jnikodym
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by:Jerry Mills
ID: 40416239
Some things to check:

1.  What is maximum speed of NIC on the server in question.  May have 100 Mb NIC.
2.  Check network path from client computer to server.  Looking for bottle necks.  i.e. QOS throttling etc..  10/100Mb Switch in path.
3.  What is processor in use and how much memory?
4.  View CPU usage.
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by:jnikodym
ID: 40416308
1. The nic is a 1gb card
2. All switches on the network are 1 gb switches
3. The processor is an Intex Xeon 2.8ghz, 2GB RAM
4.  CPU usage is low, 2%
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by:Jerry Mills
ID: 40416427
Try using IPerf or Lan Speed to test end to end speed between client and server.

https://iperf.fr/
http://www.totusoft.com/lanspeed.html

1.  Are any of the 1Gb switches managed?  
2.  Look for bad cables or cable that is not full 1GB specification which uses 8 wires.
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Jerry Mills earned 500 total points
ID: 40416429
Also - try using wireshark on client and look for bad packets, resets from server etc..
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