tb_device_mqtt on_connect connection FAIL with error Bad user name or password Bad user name or password

[struggle3]

Describe the bug
Cannot load GRPC connector!
2024-03-06 13:42:32 - |INFO| - [tb_gateway_service.py] - tb_gateway_service - init - 218 - Gateway starting...
2024-03-06 13:42:32 - |INFO| - [tb_gateway_service.py] - tb_gateway_service - init - 223 - ThingsBoard IoT gateway version: 0.0
2024-03-06 13:42:32 - |INFO| - [tb_gateway_service.py] - tb_gateway_service - init - 309 - Gateway started.
2024-03-06 13:42:32 - |INFO| - [tb_loader.py] - tb_loader - import_module - 68 - Import ModbusConnector from E:\ThingsBoard\src\thingsboard-gateway\thingsboard_gateway\connectors\modbus.
2024-03-06 13:42:34 - |ERROR| - [tb_device_mqtt.py] - tb_device_mqtt - _on_connect - 372 - connection FAIL with error Bad user name or password Bad user name or password
2024-03-06 13:42:34 - |INFO| - [tb_gateway_mqtt.py] - tb_gateway_mqtt - gw_subscribe_to_attribute - 181 - Subscribed to | with id 1 for device *
2024-03-06 13:42:38 - |INFO| - [tb_updater.py] - tb_updater - check_for_new_version - 84 - 3.4.5
2024-03-06 13:42:38 - |INFO| - [tb_updater.py] - tb_updater - check_for_new_version - 86 -

[===UPDATE===]

New version 3.4.5 is available!

[===UPDATE===]

Versions (please complete the following information):

• OS: [e.g. Windows 11]
• Thingsboard IoT Gateway version 3.4.5
• Python version 3.8

[github-actions]

Hi @struggle3.
Thank you for your interest in ThingsBoard IoT Gateway.
Your issue was registered, please wait for response from engineer.

IOTGW-152

[Allisam-c]

thingsboard_gateway\gateway\tb_gateway_service.py

change main config if Gateway running with docker env variables

self.__modify_main_config() <---Annotate this line

"Environment variables have more priority than configuration parameters. If you don't pass the variable, the gateway will not use it and it will use values from the configuration file."---issues#1232
The meaning is that in the development environment, the system's environment variables are read here, not from the configuration file.

[struggle3]

thingsboard_gateway\gateway\tb_gateway_service.py

change main config if Gateway running with docker env variables

self.__modify_main_config() <---Annotate this line

"Environment variables have more priority than configuration parameters. If you don't pass the variable, the gateway will not use it and it will use values from the configuration file."---issues#1232 The meaning is that in the development environment, the system's environment variables are read here, not from the configuration file.

After that, I commented the code. When running cmd, I still cannot connect to the mqtt broker normally.

[imbeacon]

Hi @struggle3,

This issue is fixed in the master branch, you can use it or wait for the release, it is expecting to be at the end of June.