Now I get this message on the serial port: Attempting MQTT connection...failed, rc=-2 try again in 5 seconds and it never manages to connect. The Wemos D1 Minis connect to my wireless access point just fine, dnsmasq assigns them fixed IPs based on their mac addresses and I can ping ...
");returntrue;}else{byteerrCode=mqttClient.state();//Serial.print("MQTT connect failed, error ...
[2018-11-05 18:51:24] Connection error with result code 2 - Connection Refused: identifier rejected. Looks like the broker is not happy with the client ID, see here: https://jaimyn.com.au/mqtt-connection-failed-status-codes-connack-return-codes/ But the config.ini does not allow to ch...
客户端 CONNECT 发起连接 客户端向代理者发送CONNECT消息请求连接,其中主要包含有如下内容: 客户端标识符clientId:用于标识连接到代理者的每个客户端,该标识符的取值对于代理者与客户端而言必须唯一; 清理会话cleanSession:用于告知代理者,当前客户端是否需要建立持久会话;当CleanSession = false时,代理者将存储客户端的...
2=无效客户机标识3=代理程序不可用4=错误的用户名或密码5=无权连接6=意外错误32000=等待来自服务器的响应时超时32100=已连接客户机=已断开客户机连接=客户机正在断开连接32103=无法连接至服务器32104=客户机未连接32105=指定的 SocketFactory 类型与代理程序 URI 不匹配32106=SSL 配置错误32107=不允许通过回调方法断...
My project is very simple and I had not noticed this change, I am using a NodeMCU ESP8266 board to send the data, but it sends me the error: MQTT client connect attempt failed. Check host, device id, username and password If someone could help me I would be very grateful....
This exception is thrown when an MQTT Connection Return code of 0x02 is encountered when opening an MQTT connection MQTT Connect Return Code Documentation Constructor Summary 展開表格 ConstructorDescription MqttIdentifierRejectedException() MqttIdentifierRejectedException(String message) ...
First, Connect returns without truly being connected. Adding a wait loop with a Sleep until the Connect callback is received is crucial. Only the callback tells you the Connect succeeded or failed. Second, once I saw the return code, I saw mine was failing on Protocol Version Mismatch. The...
Serial.println("parseObject() failed");return; } } }voidmqtt_check_connect(){while(!mqttClient.connected())//{while(connect_aliyun_mqtt(mqttClient, PRODUCT_KEY, DEVICE_NAME, DEVICE_SECRET)) { Serial.println("MQTT connect succeed!");//client.subscribe(ALINK_TOPIC_PROP_POSTRSP);mqttClient....
2023-11-06 08:41:28.761 ERROR (MainThread) [homeassistant.components.mqtt.client] Failed to connect to MQTT server due to exception: [Errno 111] Connection refused No change made to config.ini in any of the RPIs i am running since HA 2023.10+ ...