Bandwidth limitations Apache 2.0.xx on Windows 2000 Advanced Server (strange problem)

Hello,

I'm using Apache 2.0.45 on a Windows 2000 Advanced Server machine, SP3 is installed so are all the other hot fixes and updates from Microsoft. My problem is some kind of limitation on the outgoing bandthwidth of my server. Here are three wget test runs.

This is the first one with Apache 2.0.45 as you can see I doesn't get any higher than 390 KB/s

Code: 
C:\wget>wget http://192.168.0.3/10mb.bin --22:11:17--
http://192.168.0.3/10mb.bin => '10mb.bin'
Connecting to 192.168.0.3:80... connected. HTTP request sent,
awaiting response... 200 OK 22:11:43 (394.96 KB/s)
- `10mb.bin' saved [10485760/10485760]
This is the second one with Apache 1.3.27. The performance is mediocre but that probably has more to do with the 1.3.xx version of Apache.

Code: 
C:\wget>wget http://192.168.0.3/10mb.bin --22:11:58--
http://192.168.0.3/10mb.bin => '10mb.bin.1'
Connecting to 192.168.0.3:80... connected. HTTP request sent,
awaiting response... 200 OK 22:12:01 (4.23 MB/s)
- `10mb.bin.1' saved [10485760/10485760]
And finally one test with IIS HTTP Server, this one is very fast

Code: 
C:\wget>wget http://192.168.0.3/10mb.bin --22:18:00--
http://192.168.0.3/10mb.bin => '10mb2.bin'
Connecting to 192.168.0.3:80... connected. HTTP request sent,
awaiting response... 200 OK 22:18:01 (11.35 MB/s)
- `10mb.bin.2' saved [10485760/10485760]
Now your probably want to know what I've already tried, well quite a lot, as you can read above I'm tried so find a solution for the past few week so far I've been unsuccessful. By the way when I download six of these file simultaneously the bandwidth isn't divided, each file maintains a rate of 400 KB/s.

I also installed Windows 2000 Professional and there is no problem then, the test file was transferred just as fast as IIS HTTP Server, It seems to be related to Windows 2000 Advanced Server only. I've tried four different NIC's the latetst was a Intel PRO+ Dual Port Server NIC, that didn't help. I've tried it with a complete reinstall of Win2K AS no service packs or other driver just Apache 2.0.45 no changes in the configuration file and still no luck. QoS is also disabled.

I also got some help from a relative who is a system operator with a large company he is specialized in 2000/NT and knows a lot about the operating systems and how to configure them, he is also at a loss. When reviewing mij server-status there are no anomalies, everything is in perfect working order. To rule out my hard disk I/O performance I've created a RAMDRIVE and pointed the htdocs directory with the 10mb.bin test file there, this also didn't improve the situation. My event logs are clean no errors whatsoever.

To sum it up, I have absolute no idea what to fix this problem, I found this in a google user group:

http://groups.google.com/groups?hl=n....supernews.com

a somewhat similar problem but no solution was given, I sincerely hope the users who read this message can help me out.
With kind regards,

Hans Vos, The Netherlands

 

 

 

 

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