diff --git a/src/CentreonRemote/Application/Webservice/CentreonRemoteServer.php b/src/CentreonRemote/Application/Webservice/CentreonRemoteServer.php
index 40768c67cfe..8bfd90de78f 100644
--- a/src/CentreonRemote/Application/Webservice/CentreonRemoteServer.php
+++ b/src/CentreonRemote/Application/Webservice/CentreonRemoteServer.php
@@ -109,14 +109,6 @@ public function postAddToWaitList(): string
             throw new \RestBadRequestException('Can not access your address.');
         }
 
-        if (
-            !isset($_POST['app_key'])
-            || !$_POST['app_key']
-            || empty($appKey = filter_var($_POST['app_key'], FILTER_SANITIZE_STRING))
-        ) {
-            throw new \RestBadRequestException('Please send \'app_key\' in the request.');
-        }
-
         if (
             !isset($_POST['version'])
             || !$_POST['version']
@@ -147,15 +139,14 @@ public function postAddToWaitList(): string
         }
 
         $createdAt = date('Y-m-d H:i:s');
-        $insertQuery = "INSERT INTO `remote_servers` (`ip`, `app_key`, `version`, `is_connected`,
+        $insertQuery = "INSERT INTO `remote_servers` (`ip`, `version`, `is_connected`,
             `created_at`, `http_method`, `http_port`, `no_check_certificate`)
-            VALUES (:ip, :app_key, :version, 0, '{$createdAt}',
+            VALUES (:ip, :version, 0, '{$createdAt}',
                 :http_method, :http_port, :no_check_certificate
             )";
 
         $insert = $this->pearDB->prepare($insertQuery);
         $insert->bindValue(':ip', $ip, \PDO::PARAM_STR);
-        $insert->bindValue(':app_key', $appKey, \PDO::PARAM_STR);
         $insert->bindValue(':version', $version, \PDO::PARAM_STR);
         $insert->bindValue(':http_method', $httpScheme, \PDO::PARAM_STR);
         $insert->bindValue(':http_port', $httpPort, \PDO::PARAM_INT);
diff --git a/src/CentreonRemote/Domain/Service/NotifyMasterService.php b/src/CentreonRemote/Domain/Service/NotifyMasterService.php
index d5b0295f933..9af5d665ddb 100644
--- a/src/CentreonRemote/Domain/Service/NotifyMasterService.php
+++ b/src/CentreonRemote/Domain/Service/NotifyMasterService.php
@@ -93,19 +93,10 @@ public function pingMaster($ip, $data, $noCheckCertificate = false, $noProxy = f
 
         $url = "{$ip}/centreon/api/external.php?object=centreon_remote_server&action=addToWaitList";
         $repository = $this->dbManager->getRepository(InformationsRepository::class);
-        $applicationKey = $repository->getOneByKey('appKey');
         $version = $repository->getOneByKey('version');
 
-        if (empty($applicationKey)) {
-            return [
-                'status' => self::FAIL,
-                'details' => self::NO_APP_KEY
-            ];
-        }
-
         try {
             $curlData = [
-                'app_key' => $applicationKey->getValue(),
                 'version' => $version->getValue(),
                 'http_method' => $data['remoteHttpMethod'] ?? 'http',
                 'http_port' => $data['remoteHttpPort'] ?? '',
diff --git a/www/install/createTables.sql b/www/install/createTables.sql
index aa1a86c661d..c72f2449beb 100644
--- a/www/install/createTables.sql
+++ b/www/install/createTables.sql
@@ -2321,7 +2321,6 @@ CREATE TABLE IF NOT EXISTS contact_feature (
 CREATE TABLE IF NOT EXISTS `remote_servers` (
   `id` INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,
   `ip` VARCHAR(255) NOT NULL,
-  `app_key` VARCHAR(40) NOT NULL,
   `version` VARCHAR(16) NOT NULL,
   `is_connected` TINYINT(1) NOT NULL DEFAULT 0,
   `created_at` TIMESTAMP NOT NULL,
diff --git a/www/install/php/Update-22.04.2.php b/www/install/php/Update-22.04.2.php
new file mode 100644
index 00000000000..18f7e537d45
--- /dev/null
+++ b/www/install/php/Update-22.04.2.php
@@ -0,0 +1,51 @@
+<?php
+
+/*
+ * Copyright 2005 - 2022 Centreon (https://www.centreon.com/)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * For more information : contact@centreon.com
+ *
+ */
+
+require_once __DIR__ . '/../../class/centreonLog.class.php';
+
+$centreonLog = new CentreonLog();
+
+//error specific content
+$versionOfTheUpgrade = 'UPGRADE - 22.04.2: ';
+$errorMessage = '';
+
+try {
+    $pearDB->beginTransaction();
+
+    $errorMessage = "Unable to delete 'appKey' information from database";
+    $pearDB->query("DELETE FROM `informations` WHERE `key` = 'appKey'");
+
+    $pearDB->commit();
+} catch (\Exception $e) {
+    if ($pearDB->inTransaction()) {
+        $pearDB->rollBack();
+    }
+
+    $centreonLog->insertLog(
+        4,
+        $versionOfTheUpgrade . $errorMessage .
+        " - Code : " . (int)$e->getCode() .
+        " - Error : " . $e->getMessage() .
+        " - Trace : " . $e->getTraceAsString()
+    );
+
+    throw new \Exception($versionOfTheUpgrade . $errorMessage, (int) $e->getCode(), $e);
+}
diff --git a/www/install/steps/process/insertBaseConf.php b/www/install/steps/process/insertBaseConf.php
index 5a2fe96e73a..95f3e2bab70 100644
--- a/www/install/steps/process/insertBaseConf.php
+++ b/www/install/steps/process/insertBaseConf.php
@@ -138,9 +138,7 @@
 $link->exec("INSERT INTO `options` (`key`, `value`) VALUES ('gmt','" . $timezoneId . "')");
 
 # Generate random key for this instance and set it to be not central and not remote
-$uniqueKey = md5(uniqid(rand(), true));
 $informationsTableInsert = "INSERT INTO `informations` (`key`,`value`) VALUES
-    ('appKey', '{$uniqueKey}'),
     ('isRemote', 'no'),
     ('isCentral', 'yes')";