diff --git a/app/provision/resources/classes/provision.php b/app/provision/resources/classes/provision.php
index 35f309b6ec..fa633a505a 100644
--- a/app/provision/resources/classes/provision.php
+++ b/app/provision/resources/classes/provision.php
@@ -115,14 +115,25 @@ include "root.php";
 					$row = $prep_statement->fetch();
 					$count = $row['count'];
 					if ($row['count'] > 0) {
-						return true;
+						$mac_exists = true;
 					}
 					else {
-						return false;
+						$mac_exists = false;
 					}
 				}
 				else {
-					return false;
+					$mac_exists = false;
+				}
+				if ($mac_exists) {
+					return true;
+				}
+				else {
+					//log the invalid mac address attempt to the syslog server
+						openlog("FusionPBX", LOG_PID | LOG_PERROR, LOG_LOCAL0);
+						syslog(LOG_WARNING, '['.$_SERVER['REMOTE_ADDR']."] invalid mac address ".$mac);
+						closelog();
+					//invalid mac address return false
+						return false;
 				}
 		}