Donald Trump and recently ousted Fox News chairman Roger Ailes are reportedly no longer on speaking terms — jeopardizing the GOP presidential nominee’s chances of launching his own TV station post-election.

The pair of New York moguls — both also weathering recent sexual harassment complaints — joined forces in August when Ailes became a key member of Trump’s crack debate prep team after being booted in July from Fox News.

But the bond soon deteriorated, according to Vanity Fair magazine, and both sides ?reportedly have different reasons for the split.

“Ailes’ camp said Ailes learned that Trump couldn’t focus — surprise, surprise — and that advising him was a waste of time,” said New York Magazine reporter ?Gabriel Sherman, speaking at a Vanity Fair event. “These debate prep sessions weren’t going anywhere.”

The Trump camp, meanwhile, said Ailes wasn’t helping the candidate prep for the all-important debates.

Vanity Fair contributing editor Sarah Ellison said, “Ailes kept going off on tangents and talking about his war stories while he was supposed to be prepping Trump.”

The break-up could jeopardize Trump’s Plan B to launch a TV network that was expected to leverage his close relationships with his campaign chief, Breitbart CEO Steve Bannon, and Ailes, one of the most powerful people in American media.

Ailes was sued by former Fox ?anchor Gretchen Carlson in July for alleged advances the Fox boss made on her as well as frequent comments about her body. Word that Ailes had started advising the campaign spread weeks after his separation from Fox.

Trump’s campaign has been rocked in recent weeks by his off-color remarks about groping women caught on tape in 2005 and a handful of women alleging Trump made unwelcome advances on them.