Protected: another service may be using the same port 21 You must log in to view this article Updated on April 4, 2024 Tagged: another service may be using the same port 21 ftp Was this article helpful? Yes No Related Articles Protected: Live Stream invalid stream ID Protected: Telepack FTP log shows list DELE command. Protected: Karl Storz file transfer encrypted download link Protected: LDAP ports Protected: Live Stream requesting sources. “requesting resources” Protected: Moving to a new SQL database instance. Update