The only thing I can think of, other than the limitation being somewhere between the site you are going to and your ISP, is that the NIC is set for half-duplex (sends and receives, just not at the same time) instead of full duplex (I'm assuming it is a 100Mbps card).

running xp or 2000, try and tweak your tcp settings

test here http://www.dslreports.com/tweaks

 

use drtcp to adjust settings

Thanks for the reply !

 

I have a 100Mbit NIC and have tried 100Mbit half and full duplex and Auto....

 

Also tested:

Change "GlobalMaxTcpWindowSize" registry entry to  -1

and run DRTCP021.exe, no improvments.

Forgot to mention, I have:

Windows XP Pro, SP3

CPU P4 2.0Ghz  L2 cache 256 KB

RAM: 1024 Mb

Bios: A09  , 512 kb

I have swiched cables with the other PC that works fine, and ports in the Router....no luck.

 

TCP receive Window: 371260   (previus value 256960)

Window Scaling: yes

Time Stamping: No

Selective Acks: yes

Path MTU Discovery: yes

Nlack Hole detection: No

TTL: 128

MTU: 1500

can you post your drtcp settings, rwin, mtu etc

 

and switch patch cables to see also if it matters

I would use the rwin value you are using for the GX-280 since that one seems to work well

 

Any network activity running in the background at the same time you do the tests?

 

I suppose you could try a new network adapter, seen some 10/100/1000 nic cards for less than 10 bucks

 

other than than, dunno

 

 

 

 

I have tested the rwin value from the GX-280 (65535), that did not solve the problem.

I ran the broadband test first on the Dimension = 12 Mbit and the directly with GX = 61 Mbit !

There are no other network activity.....

 

Yes, next step is to buy a new NIC !