I tried uploading a new image and it uploaded up to 99% when the ftp login error message came up and it kept appearing after each failed attempt. Again, I uploaded two images last night without any problems at all. The only thing I changed this morning was the Storage Node Max Clients from 10 to 20.
Here’s what fixed this issue for me…
Under User Management->List All Users, I have a ‘fog’ user account and this username/password is what I use to login to FOG Management Console. Under FOG Configuration->FOG System Settings->TFTP Server, I have fields for FOG_TFTP_FTP_USERNAME and FOG_TFTP_FTP_PASSWORD. The username is the same as under User Management but the password is different. I did not set this password so it must have been generated during installation. Now if I go to Storage Management->All Storage Nodes->DefaultMember, there are fields for Management Username and Management Password. The username is the same as the other two but the password was set to the User Management password. Once I changed this password to the FOG_TFTP_FTP_PASSWORD, my image upload immediately finished and all of my images now show a size listed for Image Size: ON SERVER instead of the failed ftp login message.
It almost seems like by changing the Max Clients from 10 to 20 updated the password to match the password for the fog user account under User Management. It seems strange but changing the password to match that of the FOG_TFTP_FTP_PASSWORD fixed my issue.