The Federal Communications Commission says its comment system was victim to cyberattacks Sunday night around midnight after the host of HBO’s “Last Week Tonight,” John Oliver, railed against a push to roll back Obama-era “net neutrality” regulations.

FCC Chairman Ajit Pai announced a proposed rulemaking in April, to be voted on later this month, which would “reverse the mistake” of the FCC net neutrality ruling in 2015 that classified Internet service providers like AT&T and Comcast as Title II public utilities. Under the Title II classification, ISPs are subject to FCC control, allowing more stringent oversight over companies that might block or inhibit access to certain types of web services by creating pay-to-play fast lanes for certain content.