diff --git a/InterfaceAdminPlugin.inc.php b/InterfaceAdminPlugin.inc.php
index 45a7789..abd9622 100644
--- a/InterfaceAdminPlugin.inc.php
+++ b/InterfaceAdminPlugin.inc.php
@@ -17,10 +17,6 @@
  * Code displayed when loading the plugin
  */
 
-if ($config['InterfaceAdminPlugin_snmp_RW'] != '') {
-	echo ('The InterfaceAdminPlugin is up and running, and RW community is defined in the config.php');
-} else {
-	echo ('In order to use this Plugin, please define your device SNMP Write community in the config.php file, using the following code : </br> $config["InterfaceAdminPlugin_snmp_RW"] = "MyLittleRWCommunity";');
-}
+echo ('The InterfaceAdminPlugin is up and running');
 
 ?>
diff --git a/forms/enable-port.inc.php b/forms/enable-port.inc.php
index ef10cd4..8023b96 100644
--- a/forms/enable-port.inc.php
+++ b/forms/enable-port.inc.php
@@ -62,7 +62,7 @@
 	 * Let's do the SNMP Set to the device
 	 * 
 	 */
-	$res = snmp_set($device[hostname], ".1.3.6.1.2.1.2.2.1.7.$port[ifIndex]", 'i', 1);
+	$res = snmp_set($device, ".1.3.6.1.2.1.2.2.1.7.$port[ifIndex]", 'i', 1);
 
 	/* 
 	 * Return the results of the call
@@ -72,7 +72,7 @@
 	if ($res == false) {
 		$message = 'Could not enable '.$port['ifName'].' port';
 	} elseif ($res == 'community') {
-		$message = 'Community for WR SNMP not provided in config.php';
+		$message = 'Community in LibreNMS is probably ReadOnly. No answer from device with current community';
 		$status = 'error';
 		
 	} elseif ($res == 'multiple-oid') {
diff --git a/forms/shutdown-port.inc.php b/forms/shutdown-port.inc.php
index b3cd125..9902262 100644
--- a/forms/shutdown-port.inc.php
+++ b/forms/shutdown-port.inc.php
@@ -62,7 +62,7 @@
          * Let's do the SNMP Set to the device
          * 
          */
-	$res = snmp_set($device[hostname], ".1.3.6.1.2.1.2.2.1.7.$port[ifIndex]", 'i', 2);
+	$res = snmp_set($device, ".1.3.6.1.2.1.2.2.1.7.$port[ifIndex]", 'i', 2);
 
 
         /* 
@@ -72,7 +72,7 @@
 	if ($res == false) {
 		$message = 'Could not disable '.$port['ifName'].' port';
 	} elseif ($res == 'community') {
-                $message = 'Community for WR SNMP not provided in config.php';
+                $message = 'Community in LibreNMS is probably ReadOnly. No answer from device with current community';
                 $status = 'error';
 
         } elseif ($res == 'multiple-oid') { 
diff --git a/include/snmp.inc.php b/include/snmp.inc.php
index 3cd7835..d74f495 100644
--- a/include/snmp.inc.php
+++ b/include/snmp.inc.php
@@ -12,9 +12,12 @@
  * the source code distribution for details.
  */
 
+
+include "../../../includes/snmp.inc.php";
+
 /* function snmp_set($device, $oid, $type, $value, $options = null, $mib = null, $mibdir = null)
  * 
- * Execute SNMP Set on device, using $config['InterfaceAdminPlugin_snmp_RW']
+ * Execute SNMP Set on device, using default LibreNMS community settings for current device
  */
 
 function snmp_set($device, $oid, $type, $value, $options = null)
@@ -27,26 +30,25 @@ function snmp_set($device, $oid, $type, $value, $options = null)
 		return 'multiple-oid';
 	}
 
-	if (!isset($config['InterfaceAdminPlugin_snmp_RW']) || $config['InterfaceAdminPlugin_snmp_RW'] == '') {
-		//echo ('No SNMP Write Community provided in config file ( $config["InterfaceAdminPlugin_snmp_RW"])');
-		return 'community';
-	}
-
-	$community = $config['InterfaceAdminPlugin_snmp_RW'];
+	$snmpAuth = snmp_gen_auth($device);
 	$value=addslashes($value);
-	$cmd= "snmpset -v2c $options -c $community $device $oid $type '".$value."'";
+	$cmd= "snmpset $snmpAuth $options ".' '.$device[transport].':'.$device[hostname].':'.$device[port]." $oid $type '".$value."'";
 	$data = trim(external_exec($cmd), "\" \n\r");
 	$res = $data;
 
 	recordSnmpStatistic('snmpset', $time_start);
 	if (preg_match('/(No Such Instance|No Such Object|No more variables left|Authentication failure)/i', $data)) {
 		return false;
-	} elseif ($data || $data === '0') {
-		return $res;
-	} else {
-		return false;
+	} elseif (preg_match('/(No Access)/i', $data)) {
+                return 'community';
+         } elseif ($data || $data === '0') {
+		return $data;
+	} elseif ($data =='') {
+                return 'community';
+        } else {
+		return false; //$cmd." :". $data.":";
 	}
-	return false;
+	return $data;
 }//end snmp_set()
 
 ?>