user can't ftp to a directory but is part of the group that owns it

Question

• I have set www-data as the owner and group on my /var/www directory.
• The permissions on /var/www are 775, so the www-data group has write access.
• user1 is a member of the www-data group.
• vsftpd is installed and I'm able to connect to the server through sftp as user1.
• I'm able to download from /var/www but I get a permission error every time I try to upload.

What am I missing?

Answer 1

Check in /etc/vsftpd.conf is

write_enable=YES