Opmanger reports a device is not replying to pings but can ping using CMD

Opmanger reports a device is not replying to pings but can ping using CMD

I get an alert that a ping to an ip address is not responding when using Opmanager. However, when I go to a  command prompt and then ping the device, I get a response.
This means I get a false email alert.
 
I have just upgraded opmanager to 8722 from 8050.
 

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