I’m working on my library in order to add the FTPS feature. I managed to upload images up to 1MB large to the FTP server without problems, but, this is insecure.
I’m trying both, explicit AT+FTPSSL=2 and implicit mode AT+FTPSSL=1
The former returns “1,80: SSL failed to stablish channels”, while the last returns "1,84: FTP Prot Error.
The server is not receiving the AUTH action, I think the module is not able to establish a secure connection at all. Did you manage to get it working?
I also tried to ignore untrusted certs without success.
Thanks in advance!