Both goals came in the second period after a tepid first half.
The home side created the first opportunity just two minutes in, Charlie Griffin finding space in the area but his well-hit left-foot shot was beaten away by former Manchester United custodian Kevin Pilkington.
Just a minute later leading scorer Tommy Mooney attempted to chip Pilkington from 30 yards, buts his effort was comfortably saved. County did force the ball into the Chairboys' net on 18 minutes, but the effort was ruled for a foul on debutant keeper Matt Duke.
The deadlock was broken just before the hour. Mooney hit a rasping effort which beat Pilkington all ends up and came back off the post and on-loan Ipswich defender Aidan Collins, making his first appearance for the league leaders, steered the ball into the unguarded net.
Collins nearly added a second with 20 minutes left. As County failed to clear a corner, the young defender crashed a shot goalwards, which Pilkington did brilliantly to tip over.
The host's second goal arrived just three minutes later. First half substitute Joe Burnell played a delicious one-two with Sergio Torres and the young Argentinian finished with aplomb for his first senior goal.