I used nrf9160 DK with sim LTE in Vietnam to run mqtt_sample. LTE link successful but I received the ERROR: getaddrinfo fail 51 and mqtt_connect 41. Please help me to solve it. Thanks for your help.
Hi! Are you connecting over LTE-M or NB-IoT?
This file tells you the error message you're getting.
#define EAFNOSUPPORT 47 /* Addr family not supported */
#define ENETUNREACH 51 /* Network is unreachable */
Could you please add the following config CONFIG_MQTT_LOG_LEVEL_DBG=y to the prj.conf file, and provide a full log file by pressing this button in LTE Link Monitor and attaching the .txt file.
Thank for your help, I did your tutorial but nothing change! Maybe I have to chek my SIM!!!