diff --git a/application/src/main/java/org/thingsboard/server/service/transport/LocalTransportApiService.java b/application/src/main/java/org/thingsboard/server/service/transport/LocalTransportApiService.java
index 7436de8b72..9366c7e150 100644
--- a/application/src/main/java/org/thingsboard/server/service/transport/LocalTransportApiService.java
+++ b/application/src/main/java/org/thingsboard/server/service/transport/LocalTransportApiService.java
@@ -100,7 +100,7 @@ public class LocalTransportApiService implements TransportApiService {
         //TODO: Make async and enable caching
         DeviceCredentials credentials = deviceCredentialsService.findDeviceCredentialsByCredentialsId(credentialsId);
         if (credentials != null && credentials.getCredentialsType() == credentialsType) {
-            return getDeviceInfo(credentials.getDeviceId());
+            return getDeviceInfo(credentials.getDeviceId(), credentials);
         } else {
             return getEmptyTransportApiResponseFuture();
         }
@@ -135,7 +135,7 @@ public class LocalTransportApiService implements TransportApiService {
     }
 
 
-    private ListenableFuture<TransportApiResponseMsg> getDeviceInfo(DeviceId deviceId) {
+    private ListenableFuture<TransportApiResponseMsg> getDeviceInfo(DeviceId deviceId, DeviceCredentials credentials) {
         return Futures.transform(deviceService.findDeviceByIdAsync(TenantId.SYS_TENANT_ID, deviceId), device -> {
             if (device == null) {
                 log.trace("[{}] Failed to lookup device by id", deviceId);
@@ -143,7 +143,7 @@ public class LocalTransportApiService implements TransportApiService {
             }
             try {
                 return TransportApiResponseMsg.newBuilder()
-                        .setValidateTokenResponseMsg(ValidateDeviceCredentialsResponseMsg.newBuilder().setDeviceInfo(getDeviceInfoProto(device)).build()).build();
+                        .setValidateTokenResponseMsg(ValidateDeviceCredentialsResponseMsg.newBuilder().setDeviceInfo(getDeviceInfoProto(device)).setCredentialsBody(credentials.getCredentialsValue()).build()).build();
             } catch (JsonProcessingException e) {
                 log.warn("[{}] Failed to lookup device by id", deviceId, e);
                 return getEmptyTransportApiResponse();
diff --git a/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttSslHandlerProvider.java b/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttSslHandlerProvider.java
index aa643ebc9b..29e5859aea 100644
--- a/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttSslHandlerProvider.java
+++ b/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttSslHandlerProvider.java
@@ -54,18 +54,18 @@ import java.util.concurrent.TimeUnit;
 @Slf4j
 @Component("MqttSslHandlerProvider")
 @ConditionalOnExpression("'${transport.type:null}'=='null' || ('${transport.type}'=='local' && '${transport.http.enabled}'=='true')")
-@ConditionalOnProperty(prefix = "mqtt.ssl", value = "enabled", havingValue = "true", matchIfMissing = false)
+@ConditionalOnProperty(prefix = "transport.mqtt.ssl", value = "enabled", havingValue = "true", matchIfMissing = false)
 public class MqttSslHandlerProvider {
 
-    @Value("${mqtt.ssl.protocol}")
+    @Value("${transport.mqtt.ssl.protocol}")
     private String sslProtocol;
-    @Value("${mqtt.ssl.key_store}")
+    @Value("${transport.mqtt.ssl.key_store}")
     private String keyStoreFile;
-    @Value("${mqtt.ssl.key_store_password}")
+    @Value("${transport.mqtt.ssl.key_store_password}")
     private String keyStorePassword;
-    @Value("${mqtt.ssl.key_password}")
+    @Value("${transport.mqtt.ssl.key_password}")
     private String keyPassword;
-    @Value("${mqtt.ssl.key_store_type}")
+    @Value("${transport.mqtt.ssl.key_store_type}")
     private String keyStoreType;
 
     @Autowired
diff --git a/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportHandler.java b/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportHandler.java
index 3986837f6f..1a759bc98c 100644
--- a/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportHandler.java
+++ b/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportHandler.java
@@ -271,6 +271,7 @@ public class MqttTransportHandler extends ChannelInboundHandlerAdapter implement
                     case MqttTopics.DEVICE_RPC_RESPONSE_SUB_TOPIC:
                     case MqttTopics.GATEWAY_ATTRIBUTES_TOPIC:
                     case MqttTopics.GATEWAY_RPC_TOPIC:
+                    case MqttTopics.GATEWAY_ATTRIBUTES_RESPONSE_TOPIC:
                     case MqttTopics.DEVICE_ATTRIBUTES_RESPONSES_TOPIC:
                         registerSubQoS(topic, grantedQoSList, reqQoS);
                         break;
diff --git a/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportServerInitializer.java b/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportServerInitializer.java
index 550837842f..eb8e5fb60f 100644
--- a/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportServerInitializer.java
+++ b/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportServerInitializer.java
@@ -36,9 +36,8 @@ public class MqttTransportServerInitializer extends ChannelInitializer<SocketCha
     @Override
     public void initChannel(SocketChannel ch) {
         ChannelPipeline pipeline = ch.pipeline();
-        SslHandler sslHandler = null;
         if (context.getSslHandlerProvider() != null) {
-            sslHandler = context.getSslHandlerProvider().getSslHandler();
+            SslHandler sslHandler = context.getSslHandlerProvider().getSslHandler();
             pipeline.addLast(sslHandler);
             context.setSslHandler(sslHandler);
         }
diff --git a/dao/src/main/java/org/thingsboard/server/dao/util/AbstractBufferedRateExecutor.java b/dao/src/main/java/org/thingsboard/server/dao/util/AbstractBufferedRateExecutor.java
index a5415f0a1c..8a70059bb2 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/util/AbstractBufferedRateExecutor.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/util/AbstractBufferedRateExecutor.java
@@ -15,6 +15,7 @@
  */
 package org.thingsboard.server.dao.util;
 
+import com.datastax.driver.core.*;
 import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
@@ -22,6 +23,7 @@ import com.google.common.util.concurrent.SettableFuture;
 import lombok.extern.slf4j.Slf4j;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.msg.tools.TbRateLimits;
+import org.thingsboard.server.dao.nosql.CassandraStatementTask;
 
 import javax.annotation.Nullable;
 import java.util.UUID;
@@ -183,12 +185,39 @@ public abstract class AbstractBufferedRateExecutor<T extends AsyncTask, F extend
 
     private void logTask(String action, AsyncTaskContext<T, V> taskCtx) {
         if (log.isTraceEnabled()) {
-            log.trace("[{}] {} task: {}", taskCtx.getId(), action, taskCtx);
+            if (taskCtx.getTask() instanceof CassandraStatementTask) {
+                CassandraStatementTask cassStmtTask = (CassandraStatementTask) taskCtx.getTask();
+                if (cassStmtTask.getStatement() instanceof BoundStatement) {
+                    BoundStatement stmt = (BoundStatement) cassStmtTask.getStatement();
+                    String query = toStringWithValues(stmt, ProtocolVersion.V5);
+                    log.trace("[{}] {} task: {}, BoundStatement query: {}", taskCtx.getId(), action, taskCtx, query);
+                }
+            } else {
+                log.trace("[{}] {} task: {}", taskCtx.getId(), action, taskCtx);
+            }
         } else {
             log.debug("[{}] {} task", taskCtx.getId(), action);
         }
     }
 
+    private static String toStringWithValues(BoundStatement boundStatement, ProtocolVersion protocolVersion) {
+        CodecRegistry codecRegistry = boundStatement.preparedStatement().getCodecRegistry();
+        PreparedStatement preparedStatement = boundStatement.preparedStatement();
+        String query = preparedStatement.getQueryString();
+        ColumnDefinitions defs = preparedStatement.getVariables();
+        int index = 0;
+        for (ColumnDefinitions.Definition def : defs) {
+            DataType type = def.getType();
+            TypeCodec<Object> codec = codecRegistry.codecFor(type);
+            if (boundStatement.getBytesUnsafe(index) != null) {
+                Object value = codec.deserialize(boundStatement.getBytesUnsafe(index), protocolVersion);
+                query = query.replaceFirst("\\?", codec.format(value));
+            }
+            index++;
+        }
+        return query;
+    }
+
     protected int getQueueSize() {
         return queue.size();
     }
diff --git a/netty-mqtt/src/main/java/org/thingsboard/mqtt/MqttClientCallback.java b/netty-mqtt/src/main/java/org/thingsboard/mqtt/MqttClientCallback.java
index 9f86b8e6cd..000925e8b4 100644
--- a/netty-mqtt/src/main/java/org/thingsboard/mqtt/MqttClientCallback.java
+++ b/netty-mqtt/src/main/java/org/thingsboard/mqtt/MqttClientCallback.java
@@ -15,8 +15,6 @@
  */
 package org.thingsboard.mqtt;
 
-import io.netty.channel.ChannelId;
-
 /**
  * Created by Valerii Sosliuk on 12/30/2017.
  */