The match attracted their lowest attendance of the season as fans voted with their feet after the recent run of poor form and now they wait to find out who will be appointed as the new manager to work alongside Brian Carey.
Wrexham had the better of the early play but fell back under pressure later as Wycombe gained confidence and raised the pace.
Wrexham should have been a goal up by half-time if only defender Ryan Valentine had taken advantage of a penalty awarded for Russell Martin's challenge on Matt Done.
He stepped up confidently and tried to place his spot-kick but goalkeeper Frank Fielding dived right to make a comparatively easy save.
Wycombe might have won it in the dying minutes when Reuben Reid first saw an angled shot turned around the post by home keeper Anthony Williams, then spurned a glaring opportunity from barley eight yards by shooting straight into the keeper's chest.
Done missed two early chances for Wrexham by first losing out to a tackle by Martin then having a shot deflected off target.
David McCracken denied Wrexham another chance after cutting out Chris Llewellyn's cross as Valentine raced in at the far post.
Valentine also shot over from close range and Silvio Spann hit a first-time effort yards wide.
Eifion Williams was also out of luck when his shot was blocked by Stefan Oakes.
The Wrexham keeper also managed to pull off a good save by holding Matt Bloomfield's low header.
As Wycombe pressed they had another fine opening which McCracken spurned as he met Martin Bullock's knock down from a corner and skied an effort from six yards.