Well I started over with this. I deleted the my original example, I imported the example again, the ip address is 192.168.0.102 , the subnet mask is 192.168.0.102, and when I try to run the example I get:
C:\Users\Randy\Downloads\EchoTool-master\EchoTool-master\EchoTool\bin\Debug>echo
tool 192.168.0.102 /p tcp /r 7 /d hello
Hostname 192.168.0.102 resolved as 192.168.0.102
Can not connect to server
Statistics: Received=0, Corrupted=0
C:\Users\Randy\Downloads\EchoTool-master\EchoTool-master\EchoTool\bin\Debug>
Any ideas ?