Defender Log-In

Same here. I am 100% certain my password is correct.
Also, the reset password fails for both username and email.

+1, know my username and password are correct, unable to log in.

Same here as well.

Getting the same message, also defiantely sure about login/password.

I went through the "must log in every day" bug and now I'm locked out completely. I checked the expiration on my current defender subscription before the upgrade and it is not due to expire until December.

Same issuse as others, login not working, at least since Friday I believe.

Same thing was happening to me, then I hit on trying my username in all lowercase and it let me right in. Seems that the new system is case sensitive.

I tried the lower case thing and it didn't work for me. In fact it really didn't really let me try it that way but I eventually did get the thing to accept my lower case and didn't work.

The all lowercase log in did work for me, too.

When I tried the lowercase trick, it wouldn't let me. It automatically changed the first letter in my user name to uppercase.

Lower case worked for me.

The "it" that want's to use your old mixed case name is your browser's form fill feature, NOT sluggy. If you clear the field, start typing, and then when you get a pop up with the old name, put the cursor on it and press delete, it will go away. (firefox). Must be something similar in IE.