Problem

Connection limited reached.

Cause

It means that you have reached the number of concurrent connections to the server. 

Solution

Decrease the number of connections

• Close all Remote Browsers.
  Menu: Window - Close All
  Close SmartFTP
  Wait some time (for example 1 minute)
  Start SmartFTP
• Decrease the number of workers in the Transfer Queue (bottom window) to 1. 
• Disable Background Transfers
  Go to the Favorite Properties (KB: How to edit the favorite settings)
  Go to the Transfer dialog 
  Uncheck the Background Transfers checkbox

Increase the connection limit

• Contact your web hosting provider or the system administrator of the server and ask them to increase your connection limit. If you are using a free web hosting provider the one connection limitation is usually intentionally in place to encourage you to upgrade to their paid hosting plans.