We have developed a php login page for our hotspots. Recently we started having issues with the page.

If you look at the page from outside the network everything looks fine. But if you access the page from within the hotspot, the whole login page keeps refreshing over and over INSIDE the iframe.

Can't find the problem. Any help would be greatly appreciated.
http://www.floresvillefreenet.com/login.php

The iframe contains the feed from the Wilson County News.

Normally, the "endless refresh" is due to the domain name or the ip of the contents of that frame is not bypassed in the walled garden.