diff --git a/msa/black-box-tests/src/test/java/org/thingsboard/server/msa/connectivity/MqttClientTest.java b/msa/black-box-tests/src/test/java/org/thingsboard/server/msa/connectivity/MqttClientTest.java
index 1b1ed9bf0f..eb30ef8b9c 100644
--- a/msa/black-box-tests/src/test/java/org/thingsboard/server/msa/connectivity/MqttClientTest.java
+++ b/msa/black-box-tests/src/test/java/org/thingsboard/server/msa/connectivity/MqttClientTest.java
@@ -556,22 +556,6 @@ public class MqttClientTest extends AbstractContainerTest {
         assertThat(provisionResponse.get("status").asText()).isEqualTo("NOT_FOUND");
     }
 
-    @Test
-    public void regularDisconnect() throws Exception {
-        DeviceCredentials deviceCredentials = testRestClient.getDeviceCredentialsByDeviceId(device.getId());
-
-        MqttMessageListener listener = new MqttMessageListener();
-        MqttClient mqttClient = getMqttClient(deviceCredentials, listener, MqttVersion.MQTT_5);
-        final List<Byte> returnCodeByteValue = new ArrayList<>();
-        MqttClientCallback callbackForDisconnectWithReturnCode = getCallbackWrapperForDisconnectWithReturnCode(returnCodeByteValue);
-        mqttClient.setCallback(callbackForDisconnectWithReturnCode);
-        mqttClient.disconnect();
-        Thread.sleep(1000);
-        assertThat(returnCodeByteValue.size()).isEqualTo(1);
-        MqttReasonCodes.Disconnect returnCode = MqttReasonCodes.Disconnect.valueOf(returnCodeByteValue.get(0));
-        assertThat(returnCode).isEqualTo(MqttReasonCodes.Disconnect.NORMAL_DISCONNECT);
-    }
-
     @Test
     public void clientSessionTakenOverDisconnect() throws Exception {
         DeviceCredentials deviceCredentials = testRestClient.getDeviceCredentialsByDeviceId(device.getId());