Fixed #503 - forgot to check that they are already logged in (Thx Hugh)

1 files changed, 1 insertions, 1 deletions

diff --git a/login.php b/login.php
index 1d3edd44..65819983 100644
--- a/login.php
+++ b/login.php
@@ -111,7 +111,7 @@ if ($auth['success']) {
 
 	if (Config::get('prevent_multiple_logins')) {
 		$current_ip = $user->is_logged_in();
-		if ($current_ip != inet_pton($_SERVER['REMOTE_ADDR'])) {
+		if ($current_ip AND $current_ip != inet_pton($_SERVER['REMOTE_ADDR'])) {
 			Error::add('general',_('User Already Logged in'));
 			require Config::get('prefix') . '/templates/show_login_form.inc.php';
 			exit;