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voegueda71

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changing the speed of my network connections from auto to 100mb/full duplex

I need to edit the registry to change the speed of my network connections from auto to 100mb/full duplex on a windows 2000 computer. I did it for XP but for W2K is different.

Thanks
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KaliKoder
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Hello voegueda71,

What kind of network card is it ? Most NIC manufactures would have utilities you can download from their website that would do this for you.

Thanks
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voegueda71

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Well It will be done to multiple computers,  laptops and desktops.  Its really handy to just one key(modified reg key) actually 2 one that will set it to full duplex and other that will set it to auto.
I currently have one for XP computers and it's working fine.
The idea for this is when users take laptops on the road they need to change Network speed to auto and back to full duplex  when they use it  at work.
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I figure out:
The key is located at:
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}\

There are a series of sub-keys, such as 0000, 0001, 0002 etc.
One of them is the key for the network adaptor.
For Windows 2000: SubKey is 0000
in the righthand pane, you'll see DuplexMode and Media Select.  

First  Manually Configure  Ethernet Controller to one setting ( sample: 100/full duplex  )
To do this Go to:
Network Places: right click and select Properties,  
On network connections window: select Local area    
Local area Connections Properties:
 Click configure ->Advance tab->Under Property You will see DuplexMode and Media type
Change the setting to what you want:

Then Crate a REG file.
Make sure the proper 000x number is highlighted and export the
key (File menu) .  It will create a REG file.  This can be merged back into the registry by doubleclicking it.
Do the same thing with the second setting.
Kalikoder.
I didn't use Regmon to do this, but thanks to your suggestions I was able to notice the changes in the registry and that made easier to do what I wanted to do.

Thank you.