diff --git a/apps/user_ldap/js/settings.js b/apps/user_ldap/js/settings.js
index 721674ee8e..6496c6aee5 100644
--- a/apps/user_ldap/js/settings.js
+++ b/apps/user_ldap/js/settings.js
@@ -202,7 +202,7 @@ var LdapWizard = {
 				},
 				function (result) {
 					LdapWizard.hideSpinner('#ldap_base');
-					LdapWizard.showInfoBox('Please specify a port');
+					LdapWizard.showInfoBox('Please specify a Base DN');
 				}
 			);
 		}
@@ -210,28 +210,28 @@ var LdapWizard = {
 
 	checkPort: function() {
 		host = $('#ldap_host').val();
-		user = $('#ldap_dn').val();
-		pass = $('#ldap_agent_password').val();
+		port = $('#ldap_port').val();
 
-		if(host && user && pass) {
+		if(host && !port) {
 			param = 'action=guessPortAndTLS'+
 					'&ldap_serverconfig_chooser='+$('#ldap_serverconfig_chooser').val();
 
 			LdapWizard.showSpinner('#ldap_port');
+			$('#ldap_port').prop('disabled', 'disabled');
 			LdapWizard.ajax(param,
 				function(result) {
 					LdapWizard.applyChanges(result);
 					LdapWizard.hideSpinner('#ldap_port');
 					if($('#ldap_port').val()) {
 						LdapWizard.checkBaseDN();
-						$('#ldap_port').removeClass('invisible');
+						$('#ldap_port').prop('disabled', false);
 						LdapWizard.hideInfoBox();
 					}
 				},
 				function (result) {
 					LdapWizard.hideSpinner('#ldap_port');
-					$('#ldap_port').removeClass('invisible');
-					LdapWizard.showInfoBox('Please specify the BaseDN');
+					$('#ldap_port').prop('disabled', false);
+					LdapWizard.showInfoBox('Please specify the Port');
 				}
 			);
 		}
@@ -459,9 +459,6 @@ var LdapWizard = {
 	},
 
 	init: function() {
-		if($('#ldap_port').val()) {
-			$('#ldap_port').removeClass('invisible');
-		}
 		LdapWizard.basicStatusCheck();
 	},
 
@@ -516,6 +513,8 @@ var LdapWizard = {
 	},
 
 	processChanges: function(triggerObj) {
+		LdapWizard.hideInfoBox();
+		
 		if(triggerObj.id == 'ldap_host'
 		   || triggerObj.id == 'ldap_port'
 		   || triggerObj.id == 'ldap_dn'
diff --git a/apps/user_ldap/lib/wizard.php b/apps/user_ldap/lib/wizard.php
index 7e8ea0696a..0b2a6a540f 100644
--- a/apps/user_ldap/lib/wizard.php
+++ b/apps/user_ldap/lib/wizard.php
@@ -995,9 +995,9 @@ class Wizard extends LDAPUtility {
 		//In case the port is already provided, we will check this first
 		if($port > 0) {
 			$hostInfo = parse_url($host);
-			if(is_array($hostInfo)
+			if(!(is_array($hostInfo)
 				&& isset($hostInfo['scheme'])
-				&& stripos($hostInfo['scheme'], 'ldaps') === false) {
+				&& stripos($hostInfo['scheme'], 'ldaps') !== false)) {
 				$portSettings[] = array('port' => $port, 'tls' => true);
 			}
 			$portSettings[] =array('port' => $port, 'tls' => false);
diff --git a/apps/user_ldap/templates/part.wizard-server.php b/apps/user_ldap/templates/part.wizard-server.php
index 82ee9b2b23..fde7c36cdd 100644
--- a/apps/user_ldap/templates/part.wizard-server.php
+++ b/apps/user_ldap/templates/part.wizard-server.php
@@ -32,7 +32,7 @@
 							/>
 						<span>
 							<input type="number" id="ldap_port" name="ldap_port"
-								class="invisible lwautosave"
+								class="lwautosave"
 								placeholder="<?php p($l->t('Port'));?>" />
 						</span>
 					</div>