When connecting to an SSL/TLS server I get error '534 Fallback to [C]'

Article Details

URL:	https://www.tbsoftinc.com/support/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=124
Article ID:	124
Created On:	20 Jan 2007 01:27 AM

Answer

Such error typically looks like:

COMMAND:> PROT P
534 Fallback to [C]

Some SSL/TLS secure FTP servers don't allow user to do encrypted data transfer (i.e. initiated by LIST, RETR, STOR, etc), and only allow a secure command channel. For this reason you need to use non-encrypted data channel when connecting to these servers. Go to [Site Settings | Security] and select checkboxes [Clear file data transfer] and [Clear listing data transfer]. Then reconnect again.