FTP Connection Problems

Someone created a free hosting account with that domain name, that’s why I see two IPs on my dig results (one of them being the free hosting server and the other one is the file manager’s server) and so, since some resolvers prefer an IP over another, some people connect to the File Manager and some not. Maybe let’s wait for iFastNet to fix this; in the meanwhile you can use https://mftp.infinityfree.net/ and log in with the username and the password of your hosting account.