我按照下列網址做完所有的步驟 ，CCS編譯也成功.
docs.aws.amazon.com/.../getting_started_ti.html
在XDS110 Class Application/User UART 輸出的偵錯訊息在下方.
能不能幫忙解決紅色字部分MQTT的錯誤問題要怎麼解決，謝謝!!
0 0 [Tmr Svc] Starting Wi-Fi Module ...
1 0 [Tmr Svc] Simple Link task created
Device came up in Station mode
2 161 [Tmr Svc] Wi-Fi module initialized.
3 170 [Tmr Svc] Write certificate...
4 288 [Tmr Svc] Write device private key...
5 816 [Tmr Svc] Write certificate...
Device disconnected from the AP on an ERROR..!!
[WLAN EVENT] STA Connected to the AP: Panchen Phone , BSSID: ec:f3:42:8f:a:d9
[NETAPP EVENT] IP acquired by the device
Device has connected to Panchen Phone
Device IP Address is 192.168.43.234
6 3151 [Tmr Svc] Wi-Fi connected to AP Panchen Phone.
7 3152 [Tmr Svc] IP Address acquired 192.168.43.234
8 3155 [Tmr Svc] Security alert threshold = 15
9 3155 [Tmr Svc] Current number of alerts = 0
10 3155 [Tmr Svc] Creating MQTT Echo Task...
11 3155 [MQTTEcho] MQTT echo attempting to connect to a299l4kt9lf9ka-ats.iot.us-east-2.amazonaws.com.
12 5088 [pthread] [SimpleLinkSockEventHandler EVENT]: Unexpected Event: 2, Socket: 0 Reason: 0.
13 5168 [MQTT] ERROR: -452 Socket receive failed.
14 5168 [MQTT] ERROR: -1 Socket send failed.
15 5170 [MQTTEcho] ERROR: MQTT echo failed to connect with error 1.
16 5170 [MQTTEcho] MQTT echo test could not connect to broker.
17 5191 [MQTTEcho] MQTT echo demo finished.
18 5191 [MQTTEcho] ----Demo finished----
