The home side had the better of the first half at Portman Road and took a deserved 2-1 lead into the interval with Ben Thatcher's first goal for the club sandwiched between strikes from Darren Ambrose and Tommy Miller.
But we pushed Town back in the second half and arguably deserved an equaliser, although chances were few and far between.
Boss Colin reflected: "They played better than us in the first half because, similar to the second half against Charlton, 11 of them had the desire to move and run, work, close down, pass the ball and look for a return.
"When one or two either don't know or don't do their jobs to the maximum you can get found out and that led to them being better than us in the first half.
"They scored a very early goal, a good free-kick, we got back into it straight away but overall their play in open play was better than ours.
"In the second half we were a lot better and our appetite for the game grew and grew. We had one or two chances and it was a good physical test for us. The lads will have all taken something from it.
"We had a discussion afterwards and were disappointed to lose but we were pleased with the attitude and application in the second half."
Colin Calderwood took plenty of positives from our second half display in Wednesday night's FA Premier Reserve League reverse at Ipswich Town.