Digital rights advocates said the public must "be ready to fight like hell" to save the open internet from telecom attacks after a federal appeals court on Tuesday largely upheld the FCC's 2017 repeal of net neutrality.

"Telecom monopolies like AT&T, Comcast, and Verizon are hellbent on destroying net neutrality," Evan Greer, deputy director of the advocacy group Fight for the Future, said in a statement. "Big Cable's lobbyists will use this as an excuse to swarm Washington, D.C. and attempt to ram through bad legislation that would permanently gut open internet protections."

"We can't let that happen," said Greer. "The internet must come together once more to beat back corruption and defend our online freedom."

We're still reading the court decision & analyzing what it means for the fight but there are two things we know for sure: 1. Cable lobbyists are going to flood DC and try to ram through legislation to permanently gut #NetNeutrality 2. We're going to fight like hell to stop them — Fight for the Future (@fightfortheftr) October 1, 2019

Craig Aaron, president and CEO of advocacy group Free Press, tweeted that "the Trump FCC won today" but highlighted "silver linings" in the court's decision.

The D.C. Circuit Court of Appeals said in its 186-page ruling (pdf) Tuesday that the FCC's attempt to bar states from passing stronger net neutrality rules was illegal, a significant victory for California, Washington, and other states that passed strong net neutrality protections in the wake of the FCC's repeal.

"The court rejected the FCC's claims that it can pre-empt state net neutrality laws out of hand," said Aaron. "So we can take this fight to the states to protect internet users."

According to Free Press, nine states implemented rules to preserve net neutrality following the FCC's repeal.

Aaron added that the current or next Congress "can fix this mess by passing the Save the Internet Act that has already passed the House this year." The bill, as Common Dreams reported, is currently languishing in the Senate as Majority Leader Mitch McConnell (R-Ky.) refuses to bring it to the floor for a vote.

Matt Wood, vice president of policy and general counsel at Free Press, said the court's decision "underscores the pressing need for the Senate to pass the Save the Internet Act."

"It opens the door for a future FCC to go back to the right rules," Wood added, "and for states to fill the vacuum with state-based net neutrality laws."

We won’t sugarcoat it. This is a big loss: The D.C. Circuit Court of Appeals upheld the @FCC’s repeal of #NetNeutrality. This is a setback, but we are never going to stop fighting. Join us: https://t.co/SplyN4prqq #digitalcivilrights pic.twitter.com/GsafQiEURg — Free Press (@freepress) October 1, 2019

Former Verizon lawyer and current FCC chair Ajit Pai wasted no time celebrating the court's decision as a "big victory."

Wood responded that the only people who will join Pai on his victory lap are "his small circle of advisers and the lobbyists that give him his marching orders."

"The only place in the country where we don't see overwhelming bipartisan support for real net neutrality rules," said Wood, "is in a small and shrinking bubble inside the Beltway that's populated chiefly by Republican congressional leadership and the failed FCC chairman they've wrongly backed."

"People in the rest of the United States get it," said Wood. "More than 85 percent of voters—including 82 percent of Republicans and 90 percent of Democrats—support the rules that Pai struck down."