FileZilla
Status:    Resolving address of konik.endora.cz
Status:    Connecting to 62.109.140.8:21...
Status:    Connection established, waiting for welcome message...
Response:    421 500 users (the maximum) are already logged in, sorry

a

Status:    Resolving address of konik.endora.cz
Status:    Connecting to 62.109.140.8:21...
Status:    Connection established, waiting for welcome message...
Status:    Initializing TLS...
Status:    TLS connection established.
Error:    Connection timed out after 20 seconds of inactivity
Error:    Could not connect to server