Scripting

First, let me apologize for my ignorance, as I have only recently started learning this stuff and I'm still fairly inexperienced at it.
That said here is my problem...

I have a script that will install a piece of software silently (wait while it does so) and then calls the sleep.exe for 30 seconds to wait while the install finalizes the system files. After this it will perform a check to find a .cfg file in those system files and replace it with one that we have made up. After this it will do a system reboot.

My problem is when I run this batch file via being called by the K-box or actually input the batch file into K-Box to be run that way the batch file fails at the sleep.
I have tried using the ping delay and no matter what if it is being run from K-Box the delay breaks the performance of the script and it simply never completes any portion of the script after the sleep.

Does anyone have any ideas as to why this script would be running fine when execute the batch file from the test machine, but when sent from the K-Box the same script fails every time?

Here is the script in case someone can point out the error in my script that is causing the problem.
I had to replace some server info with "location" sorry if that is confusing at all.


cls
@echo.

start /wait msiexec /i "(LOCATION)\REACT! Desktop Player Installer.msi" /qn

"(LOCATION)React Player\sleep.exe" 30

findstr /s /c:"Desktops" "C:\Program Files\REACT! Player\react.cfg" | find "CON_CHANNEL_NAME"
if %ERRORLEVEL% == 1 (
@echo.
@echo need CFG fixed #1
@echo.
copy "(LOCATION)\react.cfg" "C:\Program Files\REACT! Player\react.cfg" /Y
shutdown -r -t 30
goto Quit

)
@echo.
@echo First Line Good - Test 2nd
@echo.
findstr /s /c:"(LOCATION)" "C:\Program Files\REACT! Player\react.cfg"
if %ERRORLEVEL% == 1 (
@echo.
@echo need CFG fixed #2
@echo.
copy "(LOCATION)react.cfg" "C:\Program Files\REACT! Player\react.cfg" /Y
shutdown -r -t 30
)


:Quit