The simple way to disable/enable LAN from command prompt, with a batch file, using devcon.exe

1.Download Devcon.exe from Microsoft:

http://download.microsoft.com/downl...0240/devcon.exe

2. Create a batch file with the following single line:

devcon disable "pci\ven_8086&dev_27dc"

(don't forget quotation marks).

That's all.

Enable with:
devcon enable "pci\ven_8086&dev_27dc"

Unfortunately, this tip will only work for folks who have the same network
adapter that you do.

--
Richard G. Harper [MVP Shell/User] rgharper@gmail.com
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm


<setup21@gmx.de> wrote in message
news:1145153536.869771.75670@i39g2000cwa.googlegroups.com...
> 1.Download Devcon.exe from Microsoft:
>
> http://download.microsoft.com/downl...0240/devcon.exe
>
> 2. Create a batch file with the following single line:
>
> devcon disable "pci\ven_8086&dev_27dc"
>
> (don't forget quotation marks).
>
> That's all.
>
> Enable with:
> devcon enable "pci\ven_8086&dev_27dc"
>

The problem can be overcome by giving the command
some intelligence, namely by specifying the network adapter's
name, as it appears in the Control Panel (verbatim!) in this
batch file:

Device.bat
=======
@echo off
goto Start
---------------------------------------------------
Use this batch file to enable or disable a device
from the Command Prompt.
16.4.2006 FNL
---------------------------------------------------
:Start
setlocal enabledelayedexpansion
set Adapter=Broadcom NetXtreme Fast Ethernet

if /i "%1"=="enable" goto go
if /i "%1"=="disable" goto go
echo Syntax: Device enable / disable
goto :eof

:go
set HWID=x
set count=0
set found=no

devcon hwids "PCI\*" > device.txt
for /F "tokens=*" %%* in (device.txt) do (
set /a count=!count! + 1
if /i "%%*"=="Name: %Adapter%" set found=yes& set count=1
if !found!==yes if !count!==3 set HWID=%%*
)
if %found%==yes (
echo HWID=!HWID!
devcon %1 "!HWID!"
) else (
echo Device "%Adapter%" not found.
)
endlocal
del device.txt

"Richard G. Harper" <rgharper@email.com> wrote in message
news:%237VIr7TYGHA.3972@TK2MSFTNGP04.phx.gbl...
> Unfortunately, this tip will only work for folks who have the same network
> adapter that you do.
>
> --
> Richard G. Harper [MVP Shell/User] rgharper@gmail.com
> * PLEASE post all messages and replies in the newsgroups
> * for the benefit of all. Private mail is usually not replied to.
> * My website, such as it is ... http://rgharper.mvps.org/
> * HELP us help YOU ... http://www.dts-l.org/goodpost.htm
>
>
> <setup21@gmx.de> wrote in message
> news:1145153536.869771.75670@i39g2000cwa.googlegroups.com...
> > 1.Download Devcon.exe from Microsoft:
> >
> >
http://download.microsoft.com/downl...0240/devcon.exe
> >
> > 2. Create a batch file with the following single line:
> >
> > devcon disable "pci\ven_8086&dev_27dc"
> >
> > (don't forget quotation marks).
> >
> > That's all.
> >
> > Enable with:
> > devcon enable "pci\ven_8086&dev_27dc"
> >
>
>

You could give it even more intelligence by using WMI calls to enumerate the
various network adapters present and tossing out the known entries that
aren't physical connections - but by that time I can right-click the network
status icon I put down by the clock and disable and re-enable it. :-)

--
Richard G. Harper [MVP Shell/User] rgharper@gmail.com
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm


"Pegasus (MVP)" <I.can@fly.com> wrote in message
news:eXBwrxUYGHA.3684@TK2MSFTNGP05.phx.gbl...
> The problem can be overcome by giving the command
> some intelligence, namely by specifying the network adapter's
> name, as it appears in the Control Panel (verbatim!) in this
> batch file:

download devcon form Microsoft

1. Find the registry key for your adapter [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\
2. Find the ID of your network adapter
example: devcon hwids PCI\VEN*

then find at this simple script your answer

@echo off
set ip=182.31.24.21
set mac=4C0010524026
set interface=Local Area Network
set mask=255.255.255.0
set gateway=182.31.24.1
set dns1=212.221.112.2
rem ======================
set metric=0
set mac_reg=[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}\0002]
devcon disable PCI\VEN_10EC
echo Windows Registry Editor Version 5.00 > tmp%interface%.reg
echo %mac_reg% >> tmp%interface%.reg
echo "networkaddress"="%mac%" >> tmp%interface%.reg
regedit /s tmp%interface%.reg
del tmp%interface%.reg
netsh interface ip set address name=%interface% static %ip% %mask% %gateway% %metric%
netsh interface ip set dns name=%interface% static %dns1%
devcon enable PCI\VEN_10EC