Where can I check whether the FTP service is working or it is down?

2909

FTP times out

5307

FTP gives an error about incorrect login

1844

FTP uploading/downloading is slow

2168

FTP service terminates / disconnects the connection

925

Internal Server Error appears after FTP upload

1530

FTP error: 'Impossible to connect to the server'

790

How to check whether FTP port 21 is blocked?

22389

My FTP is uploading/downloading really slow.

331

My FTP session was terminated (disconnected)

425