diff --git a/includes/device-groups.inc.php b/includes/device-groups.inc.php
index db3c75ee2..f9ee7f4ac 100644
--- a/includes/device-groups.inc.php
+++ b/includes/device-groups.inc.php
@@ -25,6 +25,8 @@
  * @subpackage Devices
  */
 
+use LibreNMS\Config;
+
 /**
  * Add a new device group
  * @param $pattern
diff --git a/includes/functions.php b/includes/functions.php
index c57a751bf..f4e4addae 100644
--- a/includes/functions.php
+++ b/includes/functions.php
@@ -2143,47 +2143,55 @@ function printStats()
 {
     global $snmp_stats, $db_stats, $rrd_stats;
 
-    printf(
-        "SNMP [%d/%.2fs]: Get[%d/%.2fs] Getnext[%d/%.2fs] Walk[%d/%.2fs]\n",
-        array_sum($snmp_stats['ops']),
-        array_sum($snmp_stats['time']),
-        $snmp_stats['ops']['snmpget'],
-        $snmp_stats['time']['snmpget'],
-        $snmp_stats['ops']['snmpgetnext'],
-        $snmp_stats['time']['snmpgetnext'],
-        $snmp_stats['ops']['snmpwalk'],
-        $snmp_stats['time']['snmpwalk']
-    );
-    printf(
-        "MySQL [%d/%.2fs]: Cell[%d/%.2fs] Row[%d/%.2fs] Rows[%d/%.2fs] Column[%d/%.2fs] Update[%d/%.2fs] Insert[%d/%.2fs] Delete[%d/%.2fs]\n",
-        array_sum($db_stats['ops']),
-        array_sum($db_stats['time']),
-        $db_stats['ops']['fetchcell'],
-        $db_stats['time']['fetchcell'],
-        $db_stats['ops']['fetchrow'],
-        $db_stats['time']['fetchrow'],
-        $db_stats['ops']['fetchrows'],
-        $db_stats['time']['fetchrows'],
-        $db_stats['ops']['fetchcolumn'],
-        $db_stats['time']['fetchcolumn'],
-        $db_stats['ops']['update'],
-        $db_stats['time']['update'],
-        $db_stats['ops']['insert'],
-        $db_stats['time']['insert'],
-        $db_stats['ops']['delete'],
-        $db_stats['time']['delete']
-    );
-    printf(
-        "RRD [%d/%.2fs]: Update[%d/%.2fs] Create [%d/%.2fs] Other[%d/%.2fs]\n",
-        array_sum($rrd_stats['ops']),
-        array_sum($rrd_stats['time']),
-        $rrd_stats['ops']['update'],
-        $rrd_stats['time']['update'],
-        $rrd_stats['ops']['create'],
-        $rrd_stats['time']['create'],
-        $rrd_stats['ops']['other'],
-        $rrd_stats['time']['other']
-    );
+    if ($snmp_stats) {
+        printf(
+            "SNMP [%d/%.2fs]: Get[%d/%.2fs] Getnext[%d/%.2fs] Walk[%d/%.2fs]\n",
+            array_sum($snmp_stats['ops']),
+            array_sum($snmp_stats['time']),
+            $snmp_stats['ops']['snmpget'],
+            $snmp_stats['time']['snmpget'],
+            $snmp_stats['ops']['snmpgetnext'],
+            $snmp_stats['time']['snmpgetnext'],
+            $snmp_stats['ops']['snmpwalk'],
+            $snmp_stats['time']['snmpwalk']
+        );
+    }
+
+    if ($db_stats) {
+        printf(
+            "MySQL [%d/%.2fs]: Cell[%d/%.2fs] Row[%d/%.2fs] Rows[%d/%.2fs] Column[%d/%.2fs] Update[%d/%.2fs] Insert[%d/%.2fs] Delete[%d/%.2fs]\n",
+            array_sum($db_stats['ops']),
+            array_sum($db_stats['time']),
+            $db_stats['ops']['fetchcell'],
+            $db_stats['time']['fetchcell'],
+            $db_stats['ops']['fetchrow'],
+            $db_stats['time']['fetchrow'],
+            $db_stats['ops']['fetchrows'],
+            $db_stats['time']['fetchrows'],
+            $db_stats['ops']['fetchcolumn'],
+            $db_stats['time']['fetchcolumn'],
+            $db_stats['ops']['update'],
+            $db_stats['time']['update'],
+            $db_stats['ops']['insert'],
+            $db_stats['time']['insert'],
+            $db_stats['ops']['delete'],
+            $db_stats['time']['delete']
+        );
+    }
+
+    if ($rrd_stats) {
+        printf(
+            "RRD [%d/%.2fs]: Update[%d/%.2fs] Create [%d/%.2fs] Other[%d/%.2fs]\n",
+            array_sum($rrd_stats['ops']),
+            array_sum($rrd_stats['time']),
+            $rrd_stats['ops']['update'],
+            $rrd_stats['time']['update'],
+            $rrd_stats['ops']['create'],
+            $rrd_stats['time']['create'],
+            $rrd_stats['ops']['other'],
+            $rrd_stats['time']['other']
+        );
+    }
 }
 
 /**
diff --git a/includes/polling/functions.inc.php b/includes/polling/functions.inc.php
index c89b7fab8..295a80fed 100644
--- a/includes/polling/functions.inc.php
+++ b/includes/polling/functions.inc.php
@@ -244,7 +244,8 @@ function poll_device($device, $options)
     echo 'Device ID: ' . $device['device_id'] . PHP_EOL;
     echo 'OS: ' . $device['os'];
     $ip = dnslookup($device);
-    $db_ip = inet_pton($ip);
+
+    $db_ip = isset($ip) ? inet_pton($ip) : null;
 
     if (!empty($db_ip) && inet6_ntop($db_ip) != inet6_ntop($device['ip'])) {
         log_event('Device IP changed to ' . $ip, $device, 'system', 3);