diff --git a/src/AXSharp.connectors/src/AXSharp.Connector.S71500.WebAPI/WebApiConnector.cs b/src/AXSharp.connectors/src/AXSharp.Connector.S71500.WebAPI/WebApiConnector.cs
index 9aa9d82e..f03f683e 100644
--- a/src/AXSharp.connectors/src/AXSharp.Connector.S71500.WebAPI/WebApiConnector.cs
+++ b/src/AXSharp.connectors/src/AXSharp.Connector.S71500.WebAPI/WebApiConnector.cs
@@ -82,19 +82,19 @@ public WebApiConnector(string ipAddress, string userName, string password, bool
         IPAddress = ipAddress;
         DBName = dbName;
         TargetPlatform = platform;
-
+       
         if (ignoreSSLErros)
             ServerCertificateCallback.CertificateCallback =
                 (sender, cert, chain, sslPolicyErrors) => true;
 
         var serviceFactory = new ApiStandardServiceFactory();
-        Client = serviceFactory.GetHttpClient(ipAddress, userName, password);
+        Client = serviceFactory.GetHttpClient(ipAddress, userName, password ?? string.Empty);
 
         requestHandler = new ApiHttpClientRequestHandler(Client,
             new ApiRequestFactory(ReqIdGenerator, RequestParameterChecker), ApiResponseChecker);
 
         requestHandler.ApiLogout();
-        requestHandler.ApiLogin(userName, password, true);
+        requestHandler.ApiLogin(userName, password ?? string.Empty, true);
 
         NumberOfInstances++;
     }
diff --git a/src/tests.integrations/integrated/src/ax/apax-lock.json b/src/tests.integrations/integrated/src/ax/apax-lock.json
index 86dd5fa5..b27a95c8 100644
--- a/src/tests.integrations/integrated/src/ax/apax-lock.json
+++ b/src/tests.integrations/integrated/src/ax/apax-lock.json
@@ -523,62 +523,6 @@
       ],
       "dependencies": {}
     },
-    "@ax/stc-win-x64": {
-      "name": "@ax/stc-win-x64",
-      "version": "6.0.146",
-      "integrity": "sha512-4hTgmIG54MaWhgxBV8gygU19yilVLfieizhUb08aRXz2o1+YKqd6ifgz1NBAT9RVOgnMj0IJcUynuLo998i1zg==",
-      "resolved": "https://registry.simatic-ax.siemens.io/@ax/stc-win-x64/-/stc-win-x64-6.0.146.tgz",
-      "os": [
-        "win32"
-      ],
-      "cpu": [
-        "x64"
-      ],
-      "dependencies": {
-        "@ax/st-docs": "6.0.146"
-      }
-    },
-    "@ax/stc-linux-x64": {
-      "name": "@ax/stc-linux-x64",
-      "version": "6.0.146",
-      "integrity": "sha512-Cy8psrCe2TB+bCZrCzU4qtPxf0UWzCpdmxOCBC4fEVKnKW6MaBOBt85PAbz6MtAriH4boJY9gMMuPspWlKavPA==",
-      "resolved": "https://registry.simatic-ax.siemens.io/@ax/stc-linux-x64/-/stc-linux-x64-6.0.146.tgz",
-      "os": [
-        "linux"
-      ],
-      "cpu": [
-        "x64"
-      ],
-      "dependencies": {
-        "@ax/st-docs": "6.0.146"
-      }
-    },
-    "@ax/st-ls-win-x64": {
-      "name": "@ax/st-ls-win-x64",
-      "version": "3.0.113",
-      "integrity": "sha512-dPj6b2aRhnelCe0BpIcLMLvHbUj2zhfQOtu4jzdZFDPhKICdB9+fTebuYRmP2vna4ogTke22e6f2buwR6VO1Vw==",
-      "resolved": "https://registry.simatic-ax.siemens.io/@ax/st-ls-win-x64/-/st-ls-win-x64-3.0.113.tgz",
-      "os": [
-        "win32"
-      ],
-      "cpu": [
-        "x64"
-      ],
-      "dependencies": {}
-    },
-    "@ax/st-ls-linux-x64": {
-      "name": "@ax/st-ls-linux-x64",
-      "version": "3.0.113",
-      "integrity": "sha512-/QUsNMJrMPRVcCrCD7gkw/xl0VvZ8YEJXxQMWGwkWol3JgxiPjWW/fb7EqpzDU+ij45xy85rBdx29MMHQ3Of9Q==",
-      "resolved": "https://registry.simatic-ax.siemens.io/@ax/st-ls-linux-x64/-/st-ls-linux-x64-3.0.113.tgz",
-      "os": [
-        "linux"
-      ],
-      "cpu": [
-        "x64"
-      ],
-      "dependencies": {}
-    },
     "@ax/system-strings": {
       "name": "@ax/system-strings",
       "version": "6.0.94",
@@ -667,11 +611,60 @@
       ],
       "dependencies": {}
     },
-    "@ax/st-docs": {
-      "name": "@ax/st-docs",
+    "@ax/stc-win-x64": {
+      "name": "@ax/stc-win-x64",
       "version": "6.0.146",
-      "integrity": "sha512-KUs6JC/dWedgnaxH7UrqAOuJm6rKS4gzXTLguqXbtWHKdDKOceIw1yODyjty4iuOm6TkDm2UX4ya6QFC84eBHA==",
-      "resolved": "https://registry.simatic-ax.siemens.io/@ax/st-docs/-/st-docs-6.0.146.tgz",
+      "integrity": "sha512-4hTgmIG54MaWhgxBV8gygU19yilVLfieizhUb08aRXz2o1+YKqd6ifgz1NBAT9RVOgnMj0IJcUynuLo998i1zg==",
+      "resolved": "https://registry.simatic-ax.siemens.io/@ax/stc-win-x64/-/stc-win-x64-6.0.146.tgz",
+      "os": [
+        "win32"
+      ],
+      "cpu": [
+        "x64"
+      ],
+      "dependencies": {
+        "@ax/st-docs": "6.0.146"
+      }
+    },
+    "@ax/stc-linux-x64": {
+      "name": "@ax/stc-linux-x64",
+      "version": "6.0.146",
+      "integrity": "sha512-Cy8psrCe2TB+bCZrCzU4qtPxf0UWzCpdmxOCBC4fEVKnKW6MaBOBt85PAbz6MtAriH4boJY9gMMuPspWlKavPA==",
+      "resolved": "https://registry.simatic-ax.siemens.io/@ax/stc-linux-x64/-/stc-linux-x64-6.0.146.tgz",
+      "os": [
+        "linux"
+      ],
+      "cpu": [
+        "x64"
+      ],
+      "dependencies": {
+        "@ax/st-docs": "6.0.146"
+      }
+    },
+    "@ax/st-ls-win-x64": {
+      "name": "@ax/st-ls-win-x64",
+      "version": "3.0.113",
+      "integrity": "sha512-dPj6b2aRhnelCe0BpIcLMLvHbUj2zhfQOtu4jzdZFDPhKICdB9+fTebuYRmP2vna4ogTke22e6f2buwR6VO1Vw==",
+      "resolved": "https://registry.simatic-ax.siemens.io/@ax/st-ls-win-x64/-/st-ls-win-x64-3.0.113.tgz",
+      "os": [
+        "win32"
+      ],
+      "cpu": [
+        "x64"
+      ],
+      "dependencies": {}
+    },
+    "@ax/st-ls-linux-x64": {
+      "name": "@ax/st-ls-linux-x64",
+      "version": "3.0.113",
+      "integrity": "sha512-/QUsNMJrMPRVcCrCD7gkw/xl0VvZ8YEJXxQMWGwkWol3JgxiPjWW/fb7EqpzDU+ij45xy85rBdx29MMHQ3Of9Q==",
+      "resolved": "https://registry.simatic-ax.siemens.io/@ax/st-ls-linux-x64/-/st-ls-linux-x64-3.0.113.tgz",
+      "os": [
+        "linux"
+      ],
+      "cpu": [
+        "x64"
+      ],
       "dependencies": {}
     },
     "@ax/system-math": {
@@ -687,6 +680,13 @@
       "integrity": "sha512-8xn57nA5NfZ6ImTxmFGvzFp7wLL38JdUgjsuEg+xbzs29e8ftvbTCNqaWMVdX05N4QNAqohq2BlEkIyFtDH8Qg==",
       "resolved": "https://registry.simatic-ax.siemens.io/@ax/system-datetime/-/system-datetime-6.0.94.tgz",
       "dependencies": {}
+    },
+    "@ax/st-docs": {
+      "name": "@ax/st-docs",
+      "version": "6.0.146",
+      "integrity": "sha512-KUs6JC/dWedgnaxH7UrqAOuJm6rKS4gzXTLguqXbtWHKdDKOceIw1yODyjty4iuOm6TkDm2UX4ya6QFC84eBHA==",
+      "resolved": "https://registry.simatic-ax.siemens.io/@ax/st-docs/-/st-docs-6.0.146.tgz",
+      "dependencies": {}
     }
   },
   "workspaces": {}