Cannot install Web Services on IIS

Hi all,

I have error when install "Web services on IIS" AX 2012 R2.

When i clicked "Next" on "Specify Business Connector proxy account information" its show error "The password for Business Connector Proxy account CONTOSO\Administrator is incorrect".

But i'm very sure that i type exaclty password for Contoso\Administrator.

Thank you very much !