diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/DeviceManager.java b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/DeviceManager.java
index 3481dc8e17..c019276768 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/DeviceManager.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/DeviceManager.java
@@ -150,4 +150,11 @@ public interface DeviceManager {
 
     void addLicense(License license) throws LicenseManagementException;
 
+    /**
+     * Method to enable to device-authentication for the device-platform.
+     *
+     * @return Returns boolean status to enable or disable device-authentication.
+     */
+    boolean requireDeviceAuthorization();
+
 }
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/DeviceManagementPluginRepository.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/DeviceManagementPluginRepository.java
index 58263e2b25..afeee53c8a 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/DeviceManagementPluginRepository.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/DeviceManagementPluginRepository.java
@@ -21,6 +21,7 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.wso2.carbon.device.mgt.common.DeviceManagementException;
 import org.wso2.carbon.device.mgt.common.spi.DeviceManagementService;
+import org.wso2.carbon.device.mgt.core.internal.DeviceManagementDataHolder;
 import org.wso2.carbon.device.mgt.core.internal.DeviceManagementServiceComponent;
 import org.wso2.carbon.device.mgt.core.internal.DeviceManagerStartupListener;
 import org.wso2.carbon.device.mgt.core.util.DeviceManagerUtil;
@@ -41,13 +42,16 @@ public class DeviceManagementPluginRepository implements DeviceManagerStartupLis
     }
 
     public void addDeviceManagementProvider(DeviceManagementService provider) throws DeviceManagementException {
-        String deviceType = provider.getType();
+            String deviceType = provider.getType();
         synchronized (providers) {
             try {
                 if (isInited) {
                     /* Initializing Device Management Service Provider */
                     provider.init();
                     DeviceManagerUtil.registerDeviceType(deviceType);
+                    DeviceManagementDataHolder.getInstance().setRequireDeviceAuthorization(deviceType,
+                                                            provider.getDeviceManager().requireDeviceAuthorization());
+
                 }
             } catch (DeviceManagementException e) {
                 throw new DeviceManagementException("Error occurred while adding device management provider '" +
@@ -76,6 +80,13 @@ public class DeviceManagementPluginRepository implements DeviceManagerStartupLis
                 try {
                     provider.init();
                     DeviceManagerUtil.registerDeviceType(provider.getType());
+                    //TODO:
+                    //This is a temporory fix.
+                    //windows and IOS cannot resolve user info by extracting certs
+                    //until fix that, use following variable to enable and disable of checking user authorization.
+
+                    DeviceManagementDataHolder.getInstance().setRequireDeviceAuthorization(provider.getType(),
+                                             provider.getDeviceManager().requireDeviceAuthorization());
                 } catch (Throwable e) {
                     /* Throwable is caught intentionally as failure of one plugin - due to invalid start up parameters,
                         etc - should not block the initialization of other device management providers */
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/authorization/DeviceAccessAuthorizationServiceImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/authorization/DeviceAccessAuthorizationServiceImpl.java
index 1595873737..bed880e72c 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/authorization/DeviceAccessAuthorizationServiceImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/authorization/DeviceAccessAuthorizationServiceImpl.java
@@ -21,10 +21,7 @@ package org.wso2.carbon.device.mgt.core.authorization;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.wso2.carbon.context.PrivilegedCarbonContext;
-import org.wso2.carbon.device.mgt.common.Device;
-import org.wso2.carbon.device.mgt.common.DeviceIdentifier;
-import org.wso2.carbon.device.mgt.common.DeviceManagementException;
-import org.wso2.carbon.device.mgt.common.EnrolmentInfo;
+import org.wso2.carbon.device.mgt.common.*;
 import org.wso2.carbon.device.mgt.common.authorization.DeviceAccessAuthorizationException;
 import org.wso2.carbon.device.mgt.common.authorization.DeviceAccessAuthorizationService;
 import org.wso2.carbon.device.mgt.common.authorization.DeviceAuthorizationResult;
@@ -74,7 +71,7 @@ public class DeviceAccessAuthorizationServiceImpl implements DeviceAccessAuthori
         String username = this.getUserName();
         int tenantId = this.getTenantId();
         if (username == null || username.isEmpty()) {
-            return false;
+             return !DeviceManagementDataHolder.getInstance().requireDeviceAuthorization(deviceIdentifier.getType());
         }
         try {
             //Check for admin users. If the user is an admin user we authorize the access to that device.
@@ -227,11 +224,14 @@ public class DeviceAccessAuthorizationServiceImpl implements DeviceAccessAuthori
 
     private String getUserName() {
         String username = PrivilegedCarbonContext.getThreadLocalCarbonContext().getUsername();
-        String tenantDomain = MultitenantUtils.getTenantDomain(username);
-        if (username.endsWith(tenantDomain)) {
-            return username.substring(0, username.lastIndexOf("@"));
+        if (username != null && username.isEmpty()) {
+            String tenantDomain = MultitenantUtils.getTenantDomain(username);
+            if (username.endsWith(tenantDomain)) {
+                return username.substring(0, username.lastIndexOf("@"));
+            }
+            return username;
         }
-        return username;
+        return null;
     }
 
     private int getTenantId() {
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/internal/DeviceManagementDataHolder.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/internal/DeviceManagementDataHolder.java
index 938389a580..0921ef5081 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/internal/DeviceManagementDataHolder.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/internal/DeviceManagementDataHolder.java
@@ -30,6 +30,8 @@ import org.wso2.carbon.user.core.service.RealmService;
 import org.wso2.carbon.user.core.tenant.TenantManager;
 import org.wso2.carbon.utils.ConfigurationContextService;
 
+import java.util.HashMap;
+
 public class DeviceManagementDataHolder {
 
     private RealmService realmService;
@@ -42,6 +44,7 @@ public class DeviceManagementDataHolder {
     private AppManagementConfig appManagerConfig;
     private OperationManager operationManager;
     private ConfigurationContextService configurationContextService;
+    private HashMap<String,Boolean> requireDeviceAuthorization = new HashMap<>();
     private DeviceAccessAuthorizationService deviceAccessAuthorizationService;
 
     private static DeviceManagementDataHolder thisInstance = new DeviceManagementDataHolder();
@@ -145,6 +148,14 @@ public class DeviceManagementDataHolder {
         this.configurationContextService = configurationContextService;
     }
 
+    public void setRequireDeviceAuthorization(String pluginType, boolean requireAuthentication) {
+        requireDeviceAuthorization.put(pluginType,requireAuthentication);
+    }
+
+    public boolean requireDeviceAuthorization(String pluginType) {
+        return requireDeviceAuthorization.get(pluginType);
+    }
+
     public DeviceAccessAuthorizationService getDeviceAccessAuthorizationService() {
         return deviceAccessAuthorizationService;
     }
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/test/java/org/wso2/carbon/device/mgt/core/TestDeviceManager.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/test/java/org/wso2/carbon/device/mgt/core/TestDeviceManager.java
index a9ff90f96c..d8ed7a6dc6 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/test/java/org/wso2/carbon/device/mgt/core/TestDeviceManager.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/test/java/org/wso2/carbon/device/mgt/core/TestDeviceManager.java
@@ -116,4 +116,9 @@ public class TestDeviceManager implements DeviceManager {
 
     }
 
+    @Override
+    public boolean requireDeviceAuthorization() {
+        return false;
+    }
+
 }
diff --git a/pom.xml b/pom.xml
index e52c77573e..fd4032a8a6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1435,8 +1435,19 @@
                 <enabled>false</enabled>
             </releases>
         </repository>
+        <!--<repository>-->
+            <!--<id>wso2-staging</id>-->
+            <!--<name>WSO2 internal Repository</name>-->
+            <!--<url>http://maven.wso2.org/nexus/content/repositories/orgwso2carbonapimgt-125/</url>-->
+            <!--<releases>-->
+                <!--<enabled>true</enabled>-->
+                <!--<updatePolicy>daily</updatePolicy>-->
+                <!--<checksumPolicy>ignore</checksumPolicy>-->
+            <!--</releases>-->
+        <!--</repository>-->
     </repositories>
 
+
     <properties>
         <testng.version>6.1.1</testng.version>
         <carbon.kernel.version>4.4.2</carbon.kernel.version>
@@ -1506,7 +1517,7 @@
         <version.commons.lang>2.6.0.wso2v1</version.commons.lang>
 
         <!-- Carbon API Management -->
-        <carbon.api.mgt.version>4.3.0-SNAPSHOT</carbon.api.mgt.version>
+        <carbon.api.mgt.version>4.3.0</carbon.api.mgt.version>
 
         <!--CXF properties-->
         <cxf.version>2.7.16</cxf.version>