The first part ("root" user) was most likely the issue. As far as first cap in the user name - should not pose any issue at all, certainly not related to SSH. The only issue there is that *nix is case sensitive for everything including user names so usernames are generally created in lower case to avoid login/confusion issues. Tony and tony (and tOny and tonY...) are two different accounts and people tend to get mixed up...
Glad you're back in business.