Hello All,
We are using nrf52840 board interface with wiznet550i. We try to implement mqtt tls 1.2.we get following errors..
I get certificate verification error -0x2700. The error log is as follows:
:INFO: . Loading the CA root certificate ....... :INFO: ok (0 skipped) :INFO: ..Loading the client cert. and key... :INFO: ..strlen(CLcrt) + 1 1221... :INFO:ok! :INFO:In client state:MBEDTLS_SSL_SERVER_CERTIFICATE:ret -9984 :INFO: failed ! mbedtls_ssl_handshake returned -0x2700 ----> MBEDTLS_ERR_X509_CERT_VERIFY_FAILED Few forums suggest, memory issues could cause such errors or may be certificates might be faulty. But with same certificates, aws python sdk for mqtt client connection is successful without errors. Ant suggestion is appreciated