my B-L475E-IOT1A2 want not to connect AWS!

[VChur.1]

I have tried setup into device all of kind CA certificates from AWS https://docs.aws.amazon.com/iot/latest/developerguide/server-authentication.html

followin instruction from ST but nothing help!! Only errors:

*** AWS connectivity demonstration ***

AWS IoT SDK Version 2.1.1-

MQTT connection in progress:  Attempt 1/3 ...

C:\STM32_IoT_Cloud_Workspace_V1.0.1\Middlewares\Third_Party\mbedTLS\library\ssl_tls.c:4454: x509_verify_cert() returned -9984 (-0x2700)

ERROR: iot_tls_connect L#303 failed

 ! mbedtls_ssl_handshake returned -0x2700

ERROR: iot_tls_connect L#311   Unable to verify the server's certificate. Either it is invalid,

  or you didn't set ca_file or ca_path to an appropriate value.

[AKlei.1]

+1

I have exactly the same problem and also looking for an answer to this one.

I've created the AWS certificates and installed as per instructions and I get the same error.

(We have been able to successfully create AWS certificates for other (Non-STM32) based platforms we are using)

[AKlei.1]

@VChur.1​  ... I managed to get it working.

When you download the software from this site ... https://my.st.com/content/my_st_com/en/products/embedded-software/mcu-mpu-embedded-software/stm32-embedded-software/stm32cube-expansion-packages/x-cube-aws.html ...

... you have the option of "Download" ... "Get Software" or "Previous Versions" ... "1.2.1". I found that version 1.2.1 worked from me.

[VChur.1]

@AKlei.1​  Thank you for this information! Please help me how to add expansion package (x-cube-aws for example) to STM32CUBE IDE ?

I cant find any information about it ... for example, if I try to add via "help/Embedded Software Packages Manager" it write me "Problem during load of selected File" - "Invalid zip file or missing expected Pdsc file within pack root directory."

And many "water" information about "Expansion Packages" and none instruction how to add it to STM32CubeIDE !!!!!!

[AKlei.1]

@VChur.1​ , Sorry I'm not using the STM32CUBE IDE

[VChur.1]

Setting the RTC from the network time.

C:\GP_Store\IoT\X-CUBE-AWS_1.2.x\Firmware\Middlewares\Third_Party\mbedTLS\library\ssl_tls.c:4587: x509_verify_cert() returned -9984 (-0x2700)

Configuring the RTC from Date: Sun, 16 Feb 2020 23:53:52 GMT

AWS IoT SDK Version 2.2.1-

MQTT connection in progress:  Attempt 1/3 ...

C:\GP_Store\IoT\X-CUBE-AWS_1.2.x\Firmware\Middlewares\Third_Party\mbedTLS\library\ssl_tls.c:4587: x509_verify_cert() returned -9984 (-0x2700)

ERROR: iot_tls_connect L#316 failed

 ! mbedtls_ssl_handshake returned -0x2700

ERROR: iot_tls_connect L#324   Unable to verify the server's certificate. Either it is invalid,

  or you didn't set ca_file or ca_path to an appropriate value.

  Alternatively, you may want to use auth_mode=optional for testing purposes.

MQTT connection in progress:  Attempt 2/3 ...

C:\GP_Store\IoT\X-CUBE-AWS_1.2.x\Firmware\Middlewares\Third_Party\mbedTLS\library\ssl_tls.c:4587: x509_verify_cert() returned -9984 (-0x2700)

ERROR: iot_tls_connect L#316 failed

 ! mbedtls_ssl_handshake returned -0x2700

ERROR: iot_tls_connect L#324   Unable to verify the server's certificate. Either it is invalid,

  or you didn't set ca_file or ca_path to an appropriate value.

  Alternatively, you may want to use auth_mode=optional for testing purposes.

MQTT connection in progress:  Attempt 3/3 ...

C:\GP_Store\IoT\X-CUBE-AWS_1.2.x\Firmware\Middlewares\Third_Party\mbedTLS\library\ssl_tls.c:4587: x509_verify_cert() returned -9984 (-0x2700)

ERROR: iot_tls_connect L#316 failed

 ! mbedtls_ssl_handshake returned -0x2700

ERROR: iot_tls_connect L#324   Unable to verify the server's certificate. Either it is invalid,

  or you didn't set ca_file or ca_path to an appropriate value.

  Alternatively, you may want to use auth_mode=optional for testing purposes.

ERROR: subscribe_publish_sensor_values L#293 Error(-4) connecting to al4gd4utaq9sl-ats.iot.eu-west-3.amazonaws.com:8883

*** Cloud connectivity demonstration ***

Cloud connectivity demonstration completed