The Federal Communications Commission has begun studying who’s at fault in Netflix’s video streaming battle against Internet service providers, an indication that the issue may be subject to broader regulatory oversight as the agency recasts new Net Neutrality rules. Netflix recently struck deals to pay Comcast and Verizon Communications to connect its servers directly with the Internet providers’ networks to improve steaming speeds. Netflix has said it signed the deals reluctantly. Earlier this month, the Los Gatos, Calif.-based company also began issuing messages directly to some Verizon customers on its buffering screen, shortly before the movie starts, that Verizon’s crowded networks are to blame for slow streaming speeds.