Windows 7 slow network

I have an HP xw8400 workstation 2x xeon 3.0ghz dual core 24gb memory gigabit network. Windows 7 ultimate. Network transfers are very slow under Windows 7 , Running Roadrunners speed test .79meg download 1.80mb upload. Upload speed is fine, but download shoild be 10meg plus. I tried under several browsers with same results. Now the kicker Vmware workstation is running on this machine with a server 2003 virtual machine. If I go into the virtual machine and run the same speed test I get download 10.0meg plus download 1.8meg upload as it should be. There is only one nic so windows 7 and the virtual machine are both using same nic, cable, router and firewall. Also if it was a nic problem I would expect to see the upload speed suffer too but it doesn,t All other Windows 7 machines on the network are fine. Up to date on all patches. Any Ideas???
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Have you disabled the anti-virus or other internet security software to see if that is reducing the download speed?
HWC003Author Commented:
Yes I've tried all that. I added another gig Nic to the workstation and did further testing:
Original nic going out thru MS Forefront Threat Management Gateway   SLOW
Original nic going out thru ISA Server 2006 gateway FAST
New nic going out thru MS Forefront Threat Management Gateway Fast  (Gateway is
--caching and inspecting download even though it is not susposed to)
New nic going out thru ISA server 2006 FAST
   It appears that it is a combination of Windows 7 natively using the original nic and the Forefront gateway, but VMware workstation using the same nic and gateway is fine.

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Windows 7

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