Can you ping the host by hostname “ping myhost”, if the host is not reachable discover and poller will fail. Also have you added the cron entries for discover and poller?

From: observium [mailto:observium-bounces@observium.org] On Behalf Of Kiru Pananthan
Sent: Friday, 13 March 2015 19:58
To: observium@observium.org
Subject: Re: [Observium] observium Digest, Vol 56, Issue 43

Dear Bruce

I tried to Run ./discovery.php -h <hostname> then run ./poller.php -h <hostname> but still the same issue

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