Puppet users - Dec 2013 - Enabling Inventory Support for dashboard give SSL_connect error

I tried to Enabling Inventory Support for dashboard.
I follow the instruction in 
http://docs.puppetlabs.com/dashboard/manual/1.2/configuring.html

In the node page under the ''Inventory'' I get:
Could not retrieve facts from inventory service: SSL_connect returned=1 
errno=0 state=SSLv2/v3 read server hello A: unknown protocol

Where the problem can be?
 

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