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WhiteD3
22nd May 2010, 08:40 AM
Hi,

I have a hardwired Cat5 home network which uses a Belkin ADSL2+ four port + wireless modem/router.

Connected to this router is:

A ) Vista desktop
B ) XP MCE desktop
C ) XP destop

For some reason the network speed of A to C is very slow at ~ 10kb/s. Network speed between A and B is ~5.5mb/s.

I got the speeds by transferring some files between the PCs and looking at the transfer speed.

From the above I assume the problem is with the C machine. The speed setting in the 10/100/1000 network card in this machine is set to auto negotiate.

Any ideas?

djam1
22nd May 2010, 08:58 AM
Download perfping to establish the actual thru put so you have somewhere to start.
Update the NIC drivers on all the machines
Change the speed and duplex manually on the suspect machine while watching the thu put speed.
Swap the ports on the router and see if it makes any difference
A place to start anyway

WhiteD3
22nd May 2010, 09:05 AM
Spent hours on this this morning only to fix it just after my cry for help.

The PC has a Nvidia network manager with a feature call Firstpacket which had defaulted to DSL(386) and so was limiting (something to do with prioritising traffic) the network speed. Once disabled all was good again.

gatesy
27th May 2010, 04:18 PM
On the vista machine goto command prompt and type in the following commands;

netsh interface tcp set global autotuninglevel=disabled

and if that doesnt help try this one

netsh interface tcp set global rss=disabled

gatesy
27th May 2010, 04:20 PM
Oops, sorry hadnt seen that you had fixed it. I should read all posts before replying :angel: