Apologies for the problems with FTP! Sometimes FTP connections do not terminate properly and must be manually disconnected. You can do this in the cPanel under FTP Session control.
1) Login to your cPanel
2) Scroll down the menu until you find FTP Session Control.
3) You will see a list of your connections. Click on the button in the DISCONNECT column as long as the status of the connection states IDLE. You might have to click on the DISCONNECT button several times to remove all of the connections.
Just make sure that you clear out all of the connections listed and then try logging again. I did just go in myself and clear the connections. The connections should clear out when you disconnect from FTP.
Also, see our full article on the 421 Too many connections error. It explains how to view, close, and limit simultaneous connections.
If you have any further questions, please contact technical support available 24 hours a day / 7 days a week.
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