Before you enable ICMP polling you should ensure that ICMP is enabled on the device that you have added. What is the type or OS of the device you added?
thanks for the reply razeem
ICMP is enable the device.
Type - router
You have not displayed the entire ICMP Monitor Settings page. That mouse-over message indicates that ICMP monitoring has been disabled on this device. Entuity monitors devices using ICMP by default. Please check the Excluded Addresses setting to see if the address of that specific device has been excluded.