m4him

ClaytonJames, Thank you SO much for the link. That worked perfectly. I wonder how the WP people can be 99.9% genius and then that .1% thinking that case sensitive usernames would be ok. I suspect they have a reason but it seems to only causes confusion.

I am using version 2.7
It is definitely case sensitive. I have tried it many times. I have also seen another question similar to this one without a response. I have also tried more than one user

user registered as bill
Bill will not authenticate
bill will

user registered as Kenton
kenton will not authenticate
Kenton will

Does someone have an answer?