Alfie Mawson couldn't prevent Wycombe Wanderers slipping to a second consecutive defeat as a pair of Yan Klukowski goals either side of Fred Onyedinma's effort secure the win for Newport County at Adams Park.
The on loan Brentford defender played 90 minutes, his 30th league start of the season, as The Chairboys lost pace on Sky Bet League Two's top two after the defeat.
Gareth Ainsworth's side remain in the automatic promotion places, a point ahead of Luton Town ahead of Saturday's trip to struggling Carlisle United.
In League One it was not a good day for Brentford's loanees as both Will Grigg and Jack O'Connell saw their sides defeated on the road.
Will Grigg's high-flying MK Dons became the latest side to be beaten by in-form Gillingham who have now won five of their last six matches.
The Gills scored twice late on to secure a 4-2 win as Bradley Garmiston and John Marquis netted after Cody McDonald, Bradley Dack, Devante Cole and Ben Reeves had shared four goals in the opening hour.
Will was a late substitute for The Dons who remain third a point behind Swindon Town who are in the last automatic promotion spot.
Also in League One two goals in the opening seven minutes from Peterborough secured the three points against Jack O'Connell's Rochdale.
Dale did grab one back midway through the first-half but they couldn't find a leveller meaning they drop to 15th, but remain just five points outside the play off places.
In the non-league Mark Smith and Hampton and Richmond Borough lost for a fourth straight match to leave The Beavers looking over their shoulders at the Ryman Premier League drop zone.
Vasileious Karagiannis's second-half brace after Charlie Moone had cancelled out Carl Rook's opener for Leatherhead condemned Alan Dowson's side to a defeat that leaves them just eight points above the drop zone having played more games that all their rivals.
In the Vanarama South Tyrell Miller-Rodney was an unused substitute as Boreham Wood stayed top following a 0-0 draw at home to Concord Rangers.