This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CC3220SF-LAUNCHXL: IOT can't connect "AzureIOT/tlsio_sl.c Func:tlsio_sl_open Line:378 SlNetSock_startSec failed to start session-688"

Part Number: CC3220SF-LAUNCHXL

Hi 

we use

CC3220 Launchpad Rev-A 

SDK:simplelink_cc32xx_sdk_6_10_00_05

simplelink_cc32xx_sdk Azure IOT

for fisrt we power on the device, the uart log look like IOT connect success as below(for real is not connect), after that device reconnect  AP, the CCS IDE console window  appear

(File:../AzureIOT/tlsio_sl.c Func:tlsio_sl_open Line:378 SlNetSock_startSec failed to start session-688), we search error code and  some old question, haven't any idea for  this problem, please help for reply, Thanks. 

IoTHubClient_LL_SetDeviceMethodCallback...successful.IoTHubClient_LL_SetConnectionStatusCallback...successful.

Best Regards

     Tina