Hi,
If you just would like to make sure your saprouter is running, you can just check with the following commands on your saprouter host:
Get PID of the process which is listening on port 3299.
netstat -ano | findstr 3299
Get process name:
tasklist | findstr <PID>
You can also check dev_rout file to see if there is any problem.
To diagnose the problem, you need to use niping tool with route string.
I have no idea about your network infra, so you may need to decide route string by yourself.
See the following link for more information about route string:
Route String Entry for SAProuter (SAP Library - SAProuter)
Thanks.
Jim