


This is usually the case because port 21 is occupied, first use this command to queryĬheck to see if your iis built-in FTP is turned on, or if you have installed some other FTP software, stop first, then enable filezilla, it is ok. When Windows Server 2003 USES Filezilla, once installed, clicking on “Active” may report the following errorįailed to create listen socket on port 21 for IPv4įailed to create listen socket on port 21 for IPv6įailed to create a listen socket on any of the specified ports. It turned out that the 21 port was occupied, so it was ok to change the port Today, when I configured filezilla for a client, Filezilla Failed to create the listen Socket on port 21 for IPv4.
