1. Create a batch file with the below code and save it:
if exist Data.txt goto Label1
echo Cannot find Data.txt
for /f %%i in (Data.txt) do call :Sub %%i
echo Testing %1
ping -n 1 %1 | find /i "bytes=" > nul
if NOT %ErrorLevel%==0 (
echo %1 >> Computers.txt
2. Include the workstations that you need to ping in Data.txt file in the same directory where the batch file has been saved.
3. A text file Computers.txt will be creating listing alll the computers that are not reachable.