File Transfer Protocol (FTP)

522 SSL connection failed
A SyncBack user reported that after installing the new Windows update ‘KB4520005’ (released on October 8, 2019) on Windows Server 2012 R2, all their SyncBac...
Wed, 16 Oct, 2019 at 4:59 PM
450 TLS session of data connection has not resumed
TLS session of data connection has not resumed or the session does not match the control connection You may receive this error when backing-up files to ...
Sat, 2 Nov, 2019 at 10:31 AM
425 Unable to build data connection
If you receive the error ‘425 Unable to build data connection: Operation not allowed’ when backing-up files to ProFTPD Server, then change the FTP engine to...
Mon, 11 Nov, 2019 at 2:37 PM