CRON job not working

Hi, I have set up a cron Job onto my server but it doesn't work.

I tested the script but the result was showing nothing, then I assigned my email for the output and saw that the access is denied.
I am going to post here the conversation with the Hosting Company Support Desk:

Hi, I tried to run this cron job onto my website but the connection gets refused:
/usr/bin/wget -O /dev/null "http://www.fx2.it/index.php?option=com_easyblog&task=cron";

I don't know if the path is correct and the permissions are ok as I don't think I have access to those
areas of the server. This is the error message:

--2013-10-10 01:05:03-- http://www.fx2.it/index.php?option=com_easyblog&task=cron Resolving
http://www.fx2.it... 79.170.44.102 Connecting to http://www.fx2.it|79.170.44.102|:80... failed: Connection refused.
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Hi Eden,

Thank you for contacting us.

Opening that via HTTP will be disallowed because we block 'loop-back' requests. Try instead with the full server path ->

/home/sites/fx2.it/public_html/index.php?option=com_easyblog&task=cron
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so would the entire script be:
/usr/bin/wget -O /dev/null "home/sites/fx2.it/public_html/index.php?option=com_easyblog&task=cron" ?
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Hi Eden,

Thank you for your reply.

That may be because the script has no direct output redirected? What if you run it directly in your browser?