When the connection fails.
CANNOT CONNECT AT ALL
Check the address, username and password Check the port Try passive mode Check whether your network blocks FTP
Some networks and offices block it.
CONNECTS THEN DISCONNECTS
Too many simultaneous connections. Reduce them in your client settings.
Or a firewall dropping idle connections.
TRANSFERS FAIL PARTWAY
Connection instability. Reduce simultaneous transfers.
For large files, a resumable transfer helps.
PERMISSION DENIED ON UPLOAD
Check the directory permissions and whether you are in the right place.
An FTP account restricted to a directory cannot write elsewhere.
CANNOT SEE .HTACCESS
Hidden files are not shown. Enable the setting.
FILES UPLOAD BUT THE SITE DOES NOT CHANGE
Check you uploaded to the correct directory.
Or caching is serving the old version.
REPEATED AUTHENTICATION FAILURES
Your address may be temporarily blocked after failed attempts. Wait, or open a ticket.
