[BUG] TLS/SSL connection has been closed

[tunahanarslankerberos]

Describe the bug
After moving the thingsboard iot gateway from version 3.5.2 to version 3.6.2, when I tried to run it, it gave the error "TLS/SSL connection has been closed (EOF)". I do not use tls or ssl in mqtt connection, then when I moved to version 3.6.1, this problem did not occur.

Connector name:
MQTT connection with gateway

tb_gateway.json
{
  "thingsboard": {
    "host": "srv-ubuntu24",
    "port": 1883,
    "remoteShell": false,
    "remoteConfiguration": false,
    "statistics": {
      "enable": true,
      "statsSendPeriodInSeconds": 3600,
      "configuration": null,
      "commands": []
    },
    "deviceFiltering": {
      "enable": false,
      "filterFile": "list.json"
    },
    "maxPayloadSizeBytes": 1024,
    "minPackSendDelayMS": 200,
    "minPackSizeToSend": 500,
    "checkConnectorsConfigurationInSeconds": 1,
    "handleDeviceRenaming": true,
    "security": {
      "accessToken": "ACCESS_TOKEN"
    },
    "qos": 1,
    "checkingDeviceActivity": {
      "checkDeviceInactivity": false,
      "inactivityTimeoutSeconds": 200,
      "inactivityCheckPeriodSeconds": 500
    }
  },
  "storage": {
    "type": "memory",
    "read_records_count": 100,
    "max_records_count": 100000,
    "data_folder_path": "./data/",
    "max_file_count": 10,
    "max_read_records_count": 10,
    "max_records_per_file": 10000,
    "data_file_path": "./data/data.db",
    "messages_ttl_check_in_hours": 1,
    "messages_ttl_in_days": 7
  },
  "grpc": {
    "enabled": false,
    "serverPort": 9595,
    "keepaliveTimeMs": 10000,
    "keepaliveTimeoutMs": 5000,
    "keepalivePermitWithoutCalls": true,
    "maxPingsWithoutData": 0,
    "minTimeBetweenPingsMs": 10000,
    "minPingIntervalWithoutDataMs": 5000,
    "keepAliveTimeMs": 10000,
    "keepAliveTimeoutMs": 5000
  },
  "connectors": [
    {
      "useGRPC": false,
      "type": "modbus",
      "name": "MODBUS",
      "configuration": "modbus.json"
    }
  ]
}

Error traceback:
2024-12-24 11:41:00 - |INFO| - [tb_gateway_service.py] - tb_gateway_service - init - 187 - Gateway starting...
2024-12-24 11:41:01 - |INFO| - [tb_gateway_service.py] - tb_gateway_service - init - 198 - ThingsBoard IoT gateway version: 3.6.2
2024-12-24 11:41:01 - |INFO| - [tb_loader.py] - tb_loader - import_module - 72 - Import AsyncModbusConnector from /home/raspberrypi/venv/lib/python3.11/site-packages/thingsboard_gateway/connectors/modbus.
2024-12-24 11:41:01 - |INFO| - [modbus_connector.py] - modbus_connector - init - 88 - Starting Modbus Connector...
2024-12-24 11:41:01 - |INFO| - [tb_gateway_service.py] - tb_gateway_service - __connect_with_connectors - 1022 - Cannot find separated report strategy for connector 'MODBUS'. The main report strategy will be used as a connector report strategy.
2024-12-24 11:41:01 - |INFO| - [slave.py] - slave - connect - 166 - Connected to LAMP2
2024-12-24 11:41:01 - |INFO| - [tb_client.py] - tb_client - connect - 370 - Connecting to ThingsBoard...
2024-12-24 11:41:01 - |INFO| - [tb_client.py] - tb_client - __send_connect - 397 - Sending connect to srv-ubuntu24:1883, tls: False...
2024-12-24 11:41:02 - |ERROR| - [tb_client.py] - tb_client - connect - 390 - Error in connect: %s
Traceback (most recent call last):
File "/home/raspberrypi/venv/lib/python3.11/site-packages/thingsboard_gateway/gateway/tb_client.py", line 374, in connect
self.__send_connect()
File "/home/raspberrypi/venv/lib/python3.11/site-packages/thingsboard_gateway/gateway/tb_client.py", line 398, in __send_connect
self.client.connect(keepalive=self.__config.get("keep_alive", 120),
File "/home/raspberrypi/venv/lib/python3.11/site-packages/tb_device_mqtt.py", line 489, in connect
self._client.connect(self.__host, self.__port, keepalive=keepalive)
File "/home/raspberrypi/venv/lib/python3.11/site-packages/paho/mqtt/client.py", line 1435, in connect
return self.reconnect()
^^^^^^^^^^^^^^^^
File "/home/raspberrypi/venv/lib/python3.11/site-packages/paho/mqtt/client.py", line 1598, in reconnect
self._sock = self._create_socket()
^^^^^^^^^^^^^^^^^^^^^
File "/home/raspberrypi/venv/lib/python3.11/site-packages/paho/mqtt/client.py", line 4612, in _create_socket
sock = self._ssl_wrap_socket(sock)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/raspberrypi/venv/lib/python3.11/site-packages/paho/mqtt/client.py", line 4671, in _ssl_wrap_socket
ssl_sock.do_handshake()
File "/usr/lib/python3.11/ssl.py", line 1379, in do_handshake
self._sslobj.do_handshake()
ssl.SSLZeroReturnError: TLS/SSL connection has been closed (EOF) (_ssl.c:992)

Versions:

• OS:
  PRETTY_NAME="Raspbian GNU/Linux 12 (bookworm)"
  NAME="Raspbian GNU/Linux"
  VERSION_ID="12"
  VERSION="12 (bookworm)"
  VERSION_CODENAME=bookworm
  ID=raspbian
  ID_LIKE=debian
• Thingsboard IoT Gateway version: 3.6.2
• Python version: 3.11.2