A federal appeals court has struck down Federal Communications Commission rules that prohibit Internet service providers (ISPs) from restricting access to legal Web content. The ruling is the latest development in the long-running battle over net neutrality. Net neutrality advocates want to preserve the Web’s status quo, in which providers such as Verizon and Time Warner Cable can’t auction off priority traffic rights to one site over another, or impose tolls for high-bandwidth sites such as video streamers Netflix and Hulu.