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batch file to automatically repair LAN connection

Posted on 2009-04-06
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Last Modified: 2012-05-06
If anyone is able to help or give advice on where to start I would be most greatfull. At present, for some strange reason, alot of the time on our network outlook goes offline, and occasionally the internet connection will go down as well. At present teh only solution around it is to go to teh computers with that get the problem and view connection settings, and repair. This has been going on for a fair few weeks now, and it is getting tedious repairing it all the time as some of the non-literate computer guys just refuse to learn the steps to repair teh connection.

Anyways.... Is it possible to make a batch that will automatically repair the LAN connection whenever the problem happens, so the computer user can just double clich teh batch icon that I will place on thier desktop.

Any help or advice will br greatly appreciated
0
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Question by:liamrichards
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6 Comments
 
LVL 4

Expert Comment

by:anuroopkoka2005
ID: 24075689
Hi

First try to check whether the problem computer is getting the correct DNS server.
try ipconfig /flushdns

the ipconfig /registerdns

once both the commands are executed, see if the problem still persists. or not..

Let me know about this...

I will give u the batch file that the release and renew the LAN connection..
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LVL 4

Accepted Solution

by:
anuroopkoka2005 earned 2000 total points
ID: 24075705


Refer to the batch file in the attachment..

U need to rename the extension from .txt to .bat


LAN.txt
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LVL 1

Author Closing Comment

by:liamrichards
ID: 31566945
Thank you very much
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LVL 15

Expert Comment

by:Giovanni Heward
ID: 24760876
Simply right-clicking on the network icon in the taskbar notification area and selecting Repair will perform the ip renewal, among other tasks...
The process of which is described here http://www.microsoft.com/windowsxp/using/networking/maintain/repair.mspx

This article discusses the command-line equivalents performed by the Repair option...
http://support.microsoft.com/kb/289256

Nonetheless, here is a batch file which implements all the tasks... I've added two extra switches to perform the following...
/w - winsock reset (http://support.microsoft.com/kb/811259)
/r - tcp/ip reset (http://support.microsoft.com/kb/299357)


@echo off
cls & echo. & echo NetFix v1.0a by Giovanni Heward (g@utahjrs.com)
echo.
echo [Optional Switches]
echo /w - winsock reset (http://support.microsoft.com/kb/811259)
echo /r - tcp/ip reset (http://support.microsoft.com/kb/299357)
echo.
echo Note: This script may require elevated privileges to operate properly.
echo.
set p=Releasing IP address...
if exist %windir%\system32\ipconfig.exe (
echo %p% & title %p% & echo %p% >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /release 1>>%userprofile%\desktop\netfix.log 2>>&1
) else (
echo err: failed to release ip address
echo err: unable to locate %windir%\system32\ipconfig.exe
)
 
set p=Flushing ARP cache...
if exist %windir%\system32\netsh.exe (
echo %p% & title %p% & echo %p% >>%userprofile%\desktop\netfix.log
%windir%\system32\netsh.exe interface ip delete arpcache 1>>%userprofile%\desktop\netfix.log 2>>&1
) else (
if exist %windir%\system32\arp.exe (
%windir%\system32\arp.exe -d * 1>>%userprofile%\desktop\netfix.log 2>>&1
) else (
echo err: failed to fush arp cache
echo err: unable to locate %windir%\system32\netsh.exe or %windir%\system32\arp.exe
))
 
set p=Reloading NetBIOS name cache...
if exist %windir%\system32\nbtstat.exe (
echo %p% & title %p% & echo %p% >>%userprofile%\desktop\netfix.log
%windir%\system32\nbtstat.exe -R 1>>%userprofile%\desktop\netfix.log 2>>&1
) else (
echo err: failed to reload netbios name cache
echo err: unable to locate %windir%\system32\nbtstat.exe
)
 
set p=Sending NetBIOS name update...
if exist %windir%\system32\nbtstat.exe (
echo %p% & title %p% & echo %p% >>%userprofile%\desktop\netfix.log
%windir%\system32\nbtstat.exe -RR 1>>%userprofile%\desktop\netfix.log 2>>&1
) else (
echo err: failed to send netbios name update
echo err: unable to locate %windir%\system32\nbtstat.exe
)
 
set p=Flushing DNS cache...
if exist %windir%\system32\ipconfig.exe (
echo %p% & title %p% & echo %p% >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /flushdns 1>>%userprofile%\desktop\netfix.log 2>>&1
) else (
echo err: failed to flush dns cache
echo err: unable to locate %windir%\system32\ipconfig.exe
)
 
if [%1]==[/w] goto :winsock
if [%1]==[/r] goto :ipreset
goto :cont
 
:ipreset
set p=Resetting TCP/IP...
if exist %windir%\system32\netsh.exe (
echo %p% & title %p% & echo %p% >>%userprofile%\desktop\netfix.log
%windir%\system32\netsh.exe int ip reset %userprofile%\desktop\netreset.log 1>>%userprofile%\desktop\netfix.log 2>>&1
echo This fix requires a system restart... execute shutdown /a to abort.
if exist %windir%\system32\shutdown.exe %windir%\system32\shutdown.exe /r
) else (
echo err: failed to reset tcp/ip
echo err: unable to locate %windir%\system32\netsh.exe
)
goto :end
 
:winsock
set p=Resetting Winsock...
if exist %windir%\system32\netsh.exe (
echo %p% & title %p% & echo %p% >>%userprofile%\desktop\netfix.log
%windir%\system32\netsh.exe winsock reset 1>>%userprofile%\desktop\netfix.log 2>>&1
) else (
echo err: failed to reset winsock
echo err: unable to locate %windir%\system32\netsh.exe
)
 
:cont
set p=Renewing IP address...
if exist %windir%\system32\ipconfig.exe (
echo %p% & title %p% & echo %p% >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /renew 1>>%userprofile%\desktop\netfix.log 2>>&1
) else (
echo err: failed to renew IP address
echo err: unable to locate %windir%\system32\ipconfig.exe
)
 
set p=Registering DNS name...
if exist %windir%\system32\ipconfig.exe (
echo %p% & title %p% & echo %p% >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /registerdns 1>>%userprofile%\desktop\netfix.log 2>>&1
) else (
echo err: failed to register DNS name
echo err: unable to locate %windir%\system32\ipconfig.exe
)
 
:end
set p= & title NetFix v1.0a by Giovanni Heward (g@utahjrs.com) complete!
echo Network Repair Complete...
pause & exit

Open in new window

netfix.txt
0
 
LVL 15

Expert Comment

by:Giovanni Heward
ID: 24768118
version 2...



@echo off
cls & echo.
echo               __       ___     
echo              /\ \__  /'___\ __
echo   ___      __\ \ ,_\/\ \__//\_\   __  _  
echo /' _ `\  /'__`\ \ \/\ \ ,__\/\ \ /\ \/'\ 
echo /\ \/\ \/\  __/\ \ \_\ \ \_/\ \ \\/^>  ^</
echo \ \_\ \_\ \____\\ \__\\ \_\  \ \_\/\_/\_\
echo  \/_/\/_/\/____/ \/__/ \/_/   \/_/\//\/_/
echo.
echo NetFix v2.0b by Giovanni Heward (g@utahjrs.com)
echo.
echo Performs actions similiar to the network repair option and more!
echo See: http://support.microsoft.com/kb/289256
echo.
echo [Optional Switches]
echo /w   - winsock reset (http://support.microsoft.com/kb/811259) - requires reboot
echo /t   - tcp/ip reset  (http://support.microsoft.com/kb/299357) - requires reboot
echo /d   - debug mode
 
echo.
echo Note: This script requires elevated privileges to operate properly.
echo.
if [%1]==[/?] goto :eof
for /f %%d in ('date/t') do set d=%%d & for /f %%t in ('time/t') do set t=%%t
echo ---[NetFix runtime: %d% %t%]--->>%userprofile%\desktop\netfix.log
 
set p=Releasing IP address
if exist %windir%\system32\ipconfig.exe (
echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /release 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
if %errorlevel%==0 echo Successfully released IP...
if %errorlevel%==1 echo ERROR: Failed to release IP... check netfix.log
if %errorlevel%==3 echo NOTE: An IP address has not yet been associated with the network endpoint.
) else (echo ERROR: failed to release ip address - unable to locate %windir%\system32\ipconfig.exe)
if [%1]==[/d] pause
 
set p=Flushing ARP cache
if exist %windir%\system32\netsh.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\netsh.exe interface ip delete arpcache 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
if %errorlevel%==0 echo Successfully flushed ARP cache...
if %errorlevel%==1 (echo ERROR: Failed to flush ARP cache... check netfix.log)
) else (
if exist %windir%\system32\arp.exe (
%windir%\system32\arp.exe -d * 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
if %errorlevel%==0 echo Successfully flushed ARP cache...
if %errorlevel%==1 (echo ERROR: Failed to flush ARP cache... check netfix.log)
) else (echo ERROR: failed to flush arp cache - unable to locate %windir%\system32\netsh.exe or %windir%\system32\arp.exe))
if [%1]==[/d] pause
 
set p=Reloading NetBIOS name cache
if exist %windir%\system32\nbtstat.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\nbtstat.exe -R 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
if %errorlevel%==0 echo Successfully reloaded NetBIOS name cache...
if %errorlevel%==1 (echo ERROR: Failed to reload NetBIOS name cache... check netfix.log)
) else (
echo ERROR: Failed to reload netbios name cache - unable to locate %windir%\system32\nbtstat.exe)
if [%1]==[/d] pause
 
set p=Sending NetBIOS name update
if exist %windir%\system32\nbtstat.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\nbtstat.exe -RR 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
) else (echo ERROR: Failed to send netbios name update - unable to locate %windir%\system32\nbtstat.exe)
if [%1]==[/d] pause
 
set p=Flushing DNS cache
if exist %windir%\system32\ipconfig.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /flushdns 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
) else (echo ERROR: Failed to flush dns cache - unable to locate %windir%\system32\ipconfig.exe)
if [%1]==[/d] pause
 
if [%1]==[/w] goto :winsock
if [%1]==[/t] goto :ipreset
goto :cont
 
:ipreset
set p=Resetting TCP/IP
if exist %windir%\system32\netsh.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\netsh.exe int ip reset %userprofile%\desktop\netreset.log 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
if %errorlevel%==0 (
echo Successfully reset TCP/IP
echo Note: This fix requires a system restart... run "shutdown /a" to abort.
if exist %windir%\system32\shutdown.exe %windir%\system32\shutdown.exe /r
)
if %errorlevel%==1 (echo ERROR: Failed to reset tcp/ip... check netfix.log)
) else (echo ERROR: Failed to reset tcp/ip - unable to locate %windir%\system32\netsh.exe)
goto :end
 
:winsock
set p=Resetting Winsock
if exist %windir%\system32\netsh.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\netsh.exe winsock reset 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
if %errorlevel%==0 (
echo Successfully reset winsock
echo Note: This fix requires a system restart... run "shutdown /a" to abort.
if exist %windir%\system32\shutdown.exe %windir%\system32\shutdown.exe /r
)
if %errorlevel%==1 (echo Failed to reset winsock... check netfix.log)
) else (echo ERROR: Failed to reset winsock - unable to locate %windir%\system32\netsh.exe)
if [%1]==[/d] pause
 
:cont
set p=Renewing IP address
if exist %windir%\system32\ipconfig.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /renew 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
) else (echo ERROR: Failed to renew IP address - unable to locate %windir%\system32\ipconfig.exe)
if [%1]==[/d] pause
 
set p=Registering DNS name
if exist %windir%\system32\ipconfig.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /registerdns 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
) else (echo ERROR: Failed to register DNS name - unable to locate %windir%\system32\ipconfig.exe)
 
:end
set p= & title NetFix v2.0b by Giovanni Heward (g@utahjrs.com) complete! & set t= & set d=
echo. & echo Network Repair Complete! & echo ---[Finished: %d% %t%]--->>%userprofile%\desktop\netfix.log
pause & exit

Open in new window

netfix.txt
0
 
LVL 15

Expert Comment

by:Giovanni Heward
ID: 24768394
v 2.0c

- added ipconfig/all info to log file upon completion.
- fixed unset of variables %p% and %t% prior to last usage.



@echo off
cls & echo.
echo               __       ___     
echo              /\ \__  /'___\ __
echo   ___      __\ \ ,_\/\ \__//\_\   __  _  
echo /' _ `\  /'__`\ \ \/\ \ ,__\/\ \ /\ \/'\ 
echo /\ \/\ \/\  __/\ \ \_\ \ \_/\ \ \\/^>  ^</
echo \ \_\ \_\ \____\\ \__\\ \_\  \ \_\/\_/\_\
echo  \/_/\/_/\/____/ \/__/ \/_/   \/_/\//\/_/
echo.
echo NetFix v2.0c by Giovanni Heward (g@utahjrs.com)
echo.
echo Performs actions similiar to the network repair option and more!
echo See: http://support.microsoft.com/kb/289256
echo.
echo [Optional Switches]
echo /w   - winsock reset (http://support.microsoft.com/kb/811259) - requires reboot
echo /t   - tcp/ip reset  (http://support.microsoft.com/kb/299357) - requires reboot
echo /d   - debug mode
echo.
echo Note: This script requires elevated privileges to operate properly.
echo.
if [%1]==[/?] goto :eof
for /f %%d in ('date/t') do set d=%%d & for /f %%t in ('time/t') do set t=%%t
echo ---[NetFix runtime: %d% %t%]--->>%userprofile%\desktop\netfix.log
 
set p=Releasing IP address
if exist %windir%\system32\ipconfig.exe (
echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /release 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
if %errorlevel%==0 echo Successfully released IP...
if %errorlevel%==1 echo ERROR: Failed to release IP... check netfix.log
if %errorlevel%==3 echo NOTE: An IP address has not yet been associated with the network endpoint.
) else (echo ERROR: failed to release ip address - unable to locate %windir%\system32\ipconfig.exe)
if [%1]==[/d] pause
 
set p=Flushing ARP cache
if exist %windir%\system32\netsh.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\netsh.exe interface ip delete arpcache 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
if %errorlevel%==0 echo Successfully flushed ARP cache...
if %errorlevel%==1 (echo ERROR: Failed to flush ARP cache... check netfix.log)
) else (
if exist %windir%\system32\arp.exe (
%windir%\system32\arp.exe -d * 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
if %errorlevel%==0 echo Successfully flushed ARP cache...
if %errorlevel%==1 (echo ERROR: Failed to flush ARP cache... check netfix.log)
) else (echo ERROR: failed to flush arp cache - unable to locate %windir%\system32\netsh.exe or %windir%\system32\arp.exe))
if [%1]==[/d] pause
 
set p=Reloading NetBIOS name cache
if exist %windir%\system32\nbtstat.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\nbtstat.exe -R 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
if %errorlevel%==0 echo Successfully reloaded NetBIOS name cache...
if %errorlevel%==1 (echo ERROR: Failed to reload NetBIOS name cache... check netfix.log)
) else (
echo ERROR: Failed to reload netbios name cache - unable to locate %windir%\system32\nbtstat.exe)
if [%1]==[/d] pause
 
set p=Sending NetBIOS name update
if exist %windir%\system32\nbtstat.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\nbtstat.exe -RR 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
) else (echo ERROR: Failed to send netbios name update - unable to locate %windir%\system32\nbtstat.exe)
if [%1]==[/d] pause
 
set p=Flushing DNS cache
if exist %windir%\system32\ipconfig.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /flushdns 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
) else (echo ERROR: Failed to flush dns cache - unable to locate %windir%\system32\ipconfig.exe)
if [%1]==[/d] pause
 
if [%1]==[/w] goto :winsock
if [%1]==[/t] goto :ipreset
goto :cont
 
:ipreset
set p=Resetting TCP/IP
if exist %windir%\system32\netsh.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\netsh.exe int ip reset %userprofile%\desktop\netreset.log 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
if %errorlevel%==0 (
echo Successfully reset TCP/IP
echo Note: This fix requires a system restart... run "shutdown /a" to abort.
if exist %windir%\system32\shutdown.exe %windir%\system32\shutdown.exe /r
)
if %errorlevel%==1 (echo ERROR: Failed to reset tcp/ip... check netfix.log)
) else (echo ERROR: Failed to reset tcp/ip - unable to locate %windir%\system32\netsh.exe)
goto :end
 
:winsock
set p=Resetting Winsock
if exist %windir%\system32\netsh.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\netsh.exe winsock reset 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
if %errorlevel%==0 (
echo Successfully reset winsock
echo Note: This fix requires a system restart... run "shutdown /a" to abort.
if exist %windir%\system32\shutdown.exe %windir%\system32\shutdown.exe /r
)
if %errorlevel%==1 (echo Failed to reset winsock... check netfix.log)
) else (echo ERROR: Failed to reset winsock - unable to locate %windir%\system32\netsh.exe)
if [%1]==[/d] pause
 
:cont
set p=Renewing IP address
if exist %windir%\system32\ipconfig.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /renew 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
) else (echo ERROR: Failed to renew IP address - unable to locate %windir%\system32\ipconfig.exe)
if [%1]==[/d] pause
 
set p=Registering DNS name
if exist %windir%\system32\ipconfig.exe (
echo. & echo %p% & title %p% & echo ---[%p%]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /registerdns 1>>%userprofile%\desktop\netfix.log 2>>&1
if [%1]==[/d] echo errorlevel: %errorlevel%
) else (echo ERROR: Failed to register DNS name - unable to locate %windir%\system32\ipconfig.exe)
 
:end
if exist %windir%\system32\ipconfig.exe (
echo ---[ip configuration]--- >>%userprofile%\desktop\netfix.log
%windir%\system32\ipconfig.exe /all >>%userprofile%\desktop\netfix.log 2>>&1
)
echo. & echo Network Repair Complete! & echo ---[Finished: %d% %t%]--->>%userprofile%\desktop\netfix.log
set p= & title NetFix v2.0b by Giovanni Heward (g@utahjrs.com) complete! & set t= & set d=
pause & exit

Open in new window

netfix.txt
0

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