NIC Speed

  • Thread starter Thread starter Brian
  • Start date Start date
B

Brian

When ever sysprep is run it returns the NIC back to "auto negotiate". Is
there a way to prevent this from happening? or a script that could be run so
set the NIC back to "100 full duplex".
Thanks
Brian
 
Hi Brian,

The speed setting for NIC is quite different from NIC to NIC.

It is set by the inf file that used to install the NIC.

For example, the Intel(R)PRO/1000

%systemroot%\inf\nete1000.inf
Search Duplex
Find the [copper.reg] secion

; SpeedDuplex
HKR, Ndi\Params\SpeedDuplex, ParamDesc, 0,
%SpeedDuplex%
HKR, Ndi\Params\SpeedDuplex, default, 0, "0"
HKR, Ndi\Params\SpeedDuplex, type, 0, "enum"
HKR, Ndi\Params\SpeedDuplex\Enum, "0", 0,
%AutoDetect%
HKR, Ndi\Params\SpeedDuplex\Enum, "1", 0,
%10Mb-Half-Duplex%
HKR, Ndi\Params\SpeedDuplex\Enum, "2", 0,
%10Mb-Full-Duplex%
HKR, Ndi\Params\SpeedDuplex\Enum, "3", 0,
%100Mb-Half-Duplex%
HKR, Ndi\Params\SpeedDuplex\Enum, "4", 0,
%100Mb-Full-Duplex%
HKR, PROSetNdi\NdiExt\Params\SpeedDuplex, ExposeLevel, 0, "3"
HKR, PROSetNdi\NdiExt\Params\SpeedDuplex, MiniHelp, 0,
%SpeedDuplexMiniHelp%

Then go ahead to the regedit and find the following:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11C
E-BFC1-08002bE10318}\0001\Ndi\Params\SpeedDuplex\Enum

If all your machines are using the same NIC, you may find similar registry
settings from one machine and applied to all the other machines with a
simple .reg file.

HTH.

Best Regards,

Jeff Qiu
Microsoft Online Partner Support
MCSE 2k/2k3, MCSA 2k/2k3, MCDBA
Get Secure! - www.microsoft.com/security

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