
421 Sorry, cleartext sessions are not accepted on this server
Name: Sam
Comments: I'm trying to install a package within SMF admin but I keep getting "421 Sorry, cleartext sessions are not accepted on this server" Each time it asks for my FTP login details. What's causing that?
I recently had this problem with a client's site.
Ask your host to disable TLS Encryption Support or if you have access to WHM you can login, go to: FTP Server Configuration and disable it from the first field.
SMF's package manager does not support TLS at this time.
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