Service not available, closing control connection.

Causes

• User limit reached
• User are not authorized to establish the connection
• Maximum connections reached
• Maximum connections exceeded

Fixes

Step 1: Limit Connections

Limit the number of connections to any one FTP site.

Step 2: Remove Items

Remove the items from the queue.

Step 3: One FTP System Running

Ensure only one FTP system is running on your system.

Step 4: Logging In The Later Time

Try logging in to the FTP Server in the later of time.