I don't know but Internet or internet are like Highway and highway, why must I always use Internet and not internet (lower case i). According to the spell checker internet should be always capitalized...
Correctly used for the World Wide Web, Internet should always be caps the way most people use it. It is actually a proper name like New York or Santa Claus. See the reference for the history.
Someone should change it and let the system know that internet is acceptable to be used as a capital or small letter.
Someone wshould simply report it, but to whom and how and where, I don't know.