Amid its ongoing labor dispute with Local Union 3 IBEW electricians, cable company Charter Communications was denied the ability to file a revised third amended complaint in federal court over what it says were illegal demands during contract negotiations in 2017.

In an order issued Wednesday, U.S. District Judge Paul Gardephe of the Southern District of New York traced what the court found to be the cable company’s lack of diligence in bringing the case. Gardephe, a year ago, dismissed Charter’s second shot at a complaint, finding no plausible allegation the union insisted on an unlawful signatory clause.