[Max Taxable]

I don't know about vB4, but for 3.8.x I would say try this:

1. open includes/class_core.php after saving a clean copy of it to your desktop for easy revert.

2. Find:

function fetch_ip() { return $_SERVER['REMOTE_ADDR']; }

replace with:

function fetch_ip() { if(isset($_SERVER['HTTP_CF_CONNECTING_IP'])) { return $_SERVER['HTTP_CF_CONNECTING_IP']; } return $_SERVER['REMOTE_ADDR']; }

Find:

function fetch_alt_ip() { $alt_ip = $_SERVER['REMOTE_ADDR'];

if (isset($_SERVER['HTTP_CLIENT_IP'])) { $alt_ip = $_SERVER['HTTP_CLIENT_IP']; }

Replace with:

function fetch_alt_ip() { $alt_ip = $_SERVER['REMOTE_ADDR'];

if (isset($_SERVER['HTTP_CF_CONNECTING_IP'])) { $alt_ip = $_SERVER['HTTP_CF_CONNECTING_IP']; } else if (isset($_SERVER['HTTP_CLIENT_IP'])) { $alt_ip = $_SERVER['HTTP_CLIENT_IP']; }

Save changes, then upload back to the /includes folder.