iOS CocoaMQTT pod can't connect to Hisense Smart TV

Configuration
1

I’m developing Remote TV Control app for iOS with Swift, now I’m trying to add support for Hisense TVs working on VIDAA OS, I researched and understood that it is working with MQTT broker, I tried different packages to setup connection with TV, mainly CocoaMQTT package, but something went wrong, I used 36669 port to connect.

Would like to listen any best practices regarding that.

let clientID = "CocoaMQTT-" + String(ProcessInfo().processIdentifier)
let mqtt5 = CocoaMQTT5(clientID: clientID, host: "broker.emqx.io", port: 1883)

let connectProperties = MqttConnectProperties()
connectProperties.topicAliasMaximum = 0
connectProperties.sessionExpiryInterval = 0
connectProperties.receiveMaximum = 100
connectProperties.maximumPacketSize = 500
mqtt5.connectProperties = connectProperties
mqtt5.enableSSL = true    
mqtt5.allowUntrustCACertificate = true
mqtt5.username = "hisenseservice"
mqtt5.password = "multimqttservice"
mqtt5.keepAlive = 60
mqtt5.delegate = self
mqtt5.connect()

Maybe this approach is not correct to connect with Hisense TVs in Local Network. For example. Now want to know the correct approach for Hisense TVs with VIDAA OS

This is what CocoaMQTT logs in debug mode:

CocoaMQTT(info): Connected to 192.168.88.225 : 36669
CocoaMQTT(info): Enable backgrounding socket successfully
CocoaMQTT(debug): SEND: CONNECT(id: stic-master, username: hisenseservice, password: multimqttservice, keepAlive : 60, cleansess: true)
CocoaMQTT(debug): ==========================MQTT 5.0==========================
CocoaMQTT(debug): packetFixedHeaderType 16
CocoaMQTT(debug): fixedHeader [16]
CocoaMQTT(debug): remainingLen(len: len) [58]
CocoaMQTT(debug): variableHeader [0, 4, 77, 81, 84, 84, 5, 194, 0, 60, 0]
CocoaMQTT(debug): properties
CocoaMQTT(debug): payload [0, 11, 115, 116, 105, 99, 45, 109, 97, 115, 116, 101, 114, 0, 14, 104, 105, 115, 101, 110, 115, 101, 115, 101, 114, 118, 105, 99, 101, 0, 16, 109, 117, 108, 116, 105, 109, 113, 116, 116, 115, 101, 114, 118, 105, 99, 101]
CocoaMQTT(debug): =============================================================
CocoaMQTT(debug): socket wrote data 0
nw_socket_handle_socket_event [C9:1] Socket SO_ERROR [54: Connection reset by peer]
nw_protocol_socket_reset_linger [C9:1] setsockopt SO_LINGER failed [22: Invalid argument]
CocoaMQTT(debug): socket disconnected
Optional(Error Domain=MGCDAsyncSocketErrorDomain Code=7 “Socket closed by remote peer” UserInfo={NSLocalizedDescription=Socket closed by remote peer})

client = CocoaMQTT5(clientID: "stic-master", host: ip, port: 36669)
    client.username = "hisenseservice"
    client.password = "multimqttservice"
    client.enableSSL = false
    client.allowUntrustCACertificate = true
    client.backgroundOnSocket = true
    client.autoReconnect = true
    client.cleanSession = true
    client.logLevel = .debug
    client.didReceiveTrust = { mqtt5, trust, completion in
        completion(true)
    }
    client.didReceiveMessage = { mqtt5, message, code, _ in
        print(message)
    }
    client.didConnectAck = { mqtt5, reasonode, ack in
        print(ack)
    }
    client.didDisconnect = { mqtt5, error in
        print(error)
    }
    client.connect()