426 data connection closed, transfer elevated solutions:

If the above error occurs during FTP connection, please check whether you have the following local settings:

1. Whether you have installed anti-virus software such as Norton on your computer, and if so, please turn it off temporarily
2. Whether you have used WinXP system, because WinXP system has its own firewall, if you use this system, please turn it off
3. If you are surfing the Internet on the intranet, Then, please check whether there are restrictions on high-end ports such as proxy server or hardware firewall in your software