aggregator unable to connect - warning: fsockopen - rss feeds won't update

I have a bunch of Drupal sites but only one has this problem. I can't get the rss feeds to update. I get this error when trying to update rss feeds:

warning: fsockopen() [function.fsockopen]: unable to connect to edtech.nwresd.org:80 (Permission denied) in /var/www/html/edtech/includes/common.inc on line 371.

I'm running 4.7.3 and on the same network I have Moodle running and it's pulling feeds in just fine.

I am behind a firewall but I tried pulling in a feed generated from the troubled drupal server in question. It gives me the same error when trynig to pull in it's own feeds so I don't think it's a firewall issue. I did try adding a feed from the problem box to some of my drupal sites that are working (and located on other networks, outside the firewall) and they can all get the feed. Funny that the box putting the feed out can't even get it's own rss feed. ;-)

Both the Moodle server (which can pull in rss feeds) and the Drupal server (which can't) are running on two different instances under VMware. I don't know that that should make any difference. They all have unique IPs.

I've seen this thread several times but I've never seen a solution other than a post that says its a hosting configuration error. All my boxes are running FC5 and they are setup the same. I've just got this one that does not work. Any clues on where to go from here?