[INFO ][INIT][2021-10-18 10:03:09] SDK successfully initialized.
[INFO ][NET][2021-10-18 10:03:09] Network library initialized.
[INFO ][MQTT][2021-10-18 10:03:09] MQTT library successfully initialized.
[INFO ][DEMO][2021-10-18 10:03:09] MQTT demo client identifier is Armadillo-IoT_G3_SN_xxxxxxxxxxxx (length 32).
[DEBUG][NET][2021-10-18 10:03:09] Performing DNS lookup of xxxxxxxxxxxxx-ats.iot.ap-northeast-1.amazonaws.com
[DEBUG][NET][2021-10-18 10:03:09] Successfully received DNS records.
[DEBUG][NET][2021-10-18 10:03:09] Creating socket for domain: 2, type: 1, protocol: 6.
[DEBUG][NET][2021-10-18 10:03:09] Socket creation successful. Attempting connection.
[DEBUG][NET][2021-10-18 10:03:09] Socket connection successful.
[INFO ][NET][2021-10-18 10:03:09] TCP connection successful.
[INFO ][NET][2021-10-18 10:03:09] Setting up TLS.
[DEBUG][NET][2021-10-18 10:03:09] New SSL context created. Setting SSL_MODE_AUTO_RETRY.
[DEBUG][NET][2021-10-18 10:03:09] Opening root certificate AmazonRootCA1.pem
[INFO ][NET][2021-10-18 10:03:09] Successfully imported root CA.
[INFO ][NET][2021-10-18 10:03:09] Successfully imported client certificate.
[INFO ][NET][2021-10-18 10:03:09] Successfully imported client certificate private key.
[DEBUG][NET][2021-10-18 10:03:09] Setting SSL_VERIFY_PEER.
[DEBUG][NET][2021-10-18 10:03:09] Setting ALPN protos.
[DEBUG][NET][2021-10-18 10:03:09] Setting server name xxxxxxxxxxxxx-ats.iot.ap-northeast-1.amazonaws.com for SNI.
[ERROR][NET][2021-10-18 10:03:09] TLS handshake failed.
[ERROR][MQTT][2021-10-18 10:03:09] Failed to create network connection: 4
[ERROR][MQTT][2021-10-18 10:03:09] Failed to establish new MQTT connection, error NETWORK ERROR.
[ERROR][DEMO][2021-10-18 10:03:09] MQTT CONNECT returned error NETWORK ERROR.
[INFO ][MQTT][2021-10-18 10:03:09] MQTT library cleanup done.
[INFO ][NET][2021-10-18 10:03:09] Network library cleanup done.
[INFO ][INIT][2021-10-18 10:03:09] SDK cleanup done.
[ERROR][DEMO][2021-10-18 10:03:09] Error occurred while running demo.