The Owls’ Under-18s went down by the odd goal in five against Ipswich on Saturday.
Franck Betra and Harry Frost were on target for Wednesday during an entertaining affair in Suffolk.
Coach Steve Haslam said: “We’re disappointed because it was an even affair. Lack of concentration has cost us today and we were punished.
“We’ll go through the footage on the DVD with the boys this week to highlight how we can improve before turning our attention to next week’s home game against Bristol City.”