Asus TS Mini - Manual (Page 29)

HOME SERVER TS mini 29
13. Enter a strong password, confirmation password, and a
password hint. You will use this password to log on to the
Windows Home Server Console and manage your home server.
A strong password must be at least 7 characters and must
contain at least 3 of following sets: uppercase letters, lowercase
letters, numbers and symbols, e.g. Tsmini200.