How you slove it,I meet something like it:ssl_tls.c:4643: |1| x509_verify_cert() returned -9984 (-0x2700) mbedtls_ssl_handshake() returned -0x2700 Can you help me,thanks Contributor RonEldcommentedJan 16, 2019 @Carmeloningcertificate verification failure can happen for many reasons. For...