PING question

Hello,
 
I just installed and configured Netsaint v0.0.7 on Red Hat 7.3 and note that
it reported all my hosts as down - when I know they are up and reachable.
Following what was listed in the FAQ's - I did a check_ping from the command
prompt and received an error message stating: Could not interpret output
from ping command. See below:
 
libexec]# ./check_ping -H 10.84.100.1 -w 100,60% -c 500,100% -p 5
<response>
/bin/ping -n -c 5 10.84.100.1
Error: Could not interpret output from ping command
 
Has anyone run across this before? I have tried changing the values in the
"check_ping" command multiple times and have still received the same
response.
 
Thanks,
Noel