Ipswich now need to avoid defeat at Blackburn next Saturday to secure a play-off place.
McDermott's Reading have won eight consecutive league games to all but secure a play-off place.
Despite this defeat, Reading need just a point from their last three games to secure a play-off place.
And certainly not on Saturday when, needing just one point to secure a play-off berth, they slid to a miserable defeat against Reading.
The first club to secure a play-off place was confirmed this weekend after Real Oviedo reached the 80-point mark in Spain's 18-group division three.
The Scots are one point ahead of the Czech Republic going into their final Group I fixture and need to match the Czechs' result in Lithuania at least if they are to secure a play-off spot.
Turkey, two points ahead of the Holland, will secure a play-off spot on Saturday if they win or draw in the Czech Republic and the Dutch lose in Kazakhstan.
Ireland play the Group D leaders at the Aviva Stadium on Thursday evening knowing victory against either Joachim Löw's team or second-placed Poland in their final two games would secure a play-off place at worst, but that anything less could prove fatal to their hopes.
Hayes & Yeading edged closer to relegation after losing to Mansfield, who secure a play-off place.
Michael Oldfield's hat-trick helped Catalan secure a play-off spot and end Hull KR's slim chances of qualifying.
Reading are currently ninth in the Championship, but victory in their final three games will secure a play-off place.
