http monitor is reporting servers down that actually aren't

[Paul Bliss]

Strangely, Hobbit is reporting that http is not functioning on several boxes that I know are functional and reachable.
I've looked through the logs and can't find any indication as to why they failed.

PS. This Hobbit server worked fine, until the server was accidentally cold-booted.
Any suggestions from the experts?

Thanks, 
Paul