diff --git a/dao/src/main/java/org/thingsboard/server/dao/relation/BaseRelationService.java b/dao/src/main/java/org/thingsboard/server/dao/relation/BaseRelationService.java
index 3574e83d7d..86afdb488d 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/relation/BaseRelationService.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/relation/BaseRelationService.java
@@ -384,7 +384,7 @@ public class BaseRelationService implements RelationService {
         Set<EntityRelation> children = new HashSet<>(findRelations(rootId, direction).get());
         Set<EntityId> childrenIds = new HashSet<>();
         for (EntityRelation childRelation : children) {
-            log.info("Found Relation: {}", childRelation);
+            log.trace("Found Relation: {}", childRelation);
             EntityId childId;
             if (direction == EntitySearchDirection.FROM) {
                 childId = childRelation.getTo();
@@ -392,9 +392,9 @@ public class BaseRelationService implements RelationService {
                 childId = childRelation.getFrom();
             }
             if (uniqueMap.putIfAbsent(childId, Boolean.TRUE) == null) {
-                log.info("Adding Relation: {}", childId);
+                log.trace("Adding Relation: {}", childId);
                 if (childrenIds.add(childId)) {
-                    log.info("Added Relation: {}", childId);
+                    log.trace("Added Relation: {}", childId);
                 }
             }
         }
diff --git a/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportHandler.java b/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportHandler.java
index 2e6abfde96..7e4c2eac9c 100644
--- a/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportHandler.java
+++ b/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportHandler.java
@@ -229,6 +229,8 @@ public class MqttTransportHandler extends ChannelInboundHandlerAdapter implement
                 } else if (topicName.equals(DEVICE_ATTRIBUTES_RESPONSES_TOPIC)) {
                     deviceSessionCtx.setAllowAttributeResponses();
                     grantedQoSList.add(getMinSupportedQos(reqQoS));
+                } else if (topicName.equals(GATEWAY_ATTRIBUTES_TOPIC)) {
+                    grantedQoSList.add(getMinSupportedQos(reqQoS));
                 } else {
                     log.warn("[{}] Failed to subscribe to [{}][{}]", sessionId, topicName, reqQoS);
                     grantedQoSList.add(FAILURE.value());
diff --git a/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/session/GatewaySessionCtx.java b/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/session/GatewaySessionCtx.java
index 5bccf49663..d69341c999 100644
--- a/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/session/GatewaySessionCtx.java
+++ b/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/session/GatewaySessionCtx.java
@@ -183,8 +183,8 @@ public class GatewaySessionCtx {
         }
     }
 
-    public void onDeviceAttributesRequest(MqttPublishMessage mqttMsg) throws AdaptorException {
-        JsonElement json = validateJsonPayload(gatewaySessionId, mqttMsg.payload());
+    public void onDeviceAttributesRequest(MqttPublishMessage msg) throws AdaptorException {
+        JsonElement json = validateJsonPayload(gatewaySessionId, msg.payload());
         if (json.isJsonObject()) {
             JsonObject jsonObj = json.getAsJsonObject();
             int requestId = jsonObj.get("id").getAsInt();
@@ -210,6 +210,7 @@ public class GatewaySessionCtx {
             GatewayDeviceSessionCtx deviceSessionCtx = devices.get(deviceName);
             processor.process(new BasicToDeviceActorSessionMsg(deviceSessionCtx.getDevice(),
                     new BasicAdaptorToSessionActorMsg(deviceSessionCtx, request)));
+            ack(msg);
         } else {
             throw new JsonSyntaxException(CAN_T_PARSE_VALUE + json);
         }