NYC Wireless Network Down Due To Y2K-Like Software Bug

City Hall’ s tech czar ignored a federal warning about a looming, Y2K-like software bug last year — allowing a crash of the city’s official wireless network that has been down since the weekend, sources told The Post.

As a result, transit officials can’t remotely control the Big Apple’s 12,000-plus traffic lights, and many of the city’s traffic cameras and NYPD license-plate readers are down, sources said.

“This is a big screw-up, even for the de Blasio administration,” said a source familiar with the matter.