Another draw for Blues
Town made it back-to-back goalless draws following today's stalemate against MK Dons at Portman Road.
Neither side looked that likely to break the deadlock in the first half, with both sides then wasting chances in the second 45 minutes.
Town's new chairman, Mike O'Leary, was in attendance.
Paul Cook made three changes to the side that drew 0-0 at Rochdale on Easter Monday, with Flynn Downes, Armando Dobra and Aaron Drinan coming into the starting line-up.
Downes, who had been sidelined with a hamstring injury, was involved for the first time since a 1-0 win over Plymouth on 13 March.
Tristan Nydam, who hadn't featured for the Blues first-team for two years following a broken ankle and ligament damage, was named on the bench and came on as a second-half substitute.
Chances were few and far between in the early stages, but Tomas Holy did have to make a save to deny Zak Jules 20 minutes in.
The game kicked into life just before half-time, though, with both sides squandering good opportunities. The visitors worked the ball into the area well before Scott Fraser fired into the side netting, with Gwion Edwards then setting up Dobra at the other end, but the Albanian's sliding effort from close range dropped wide.
Holy was called into action shortly after the restart when he got to his right to push behind a well-struck long-range effort from Andrew Surman.
The Czech shot-stopper then denied Matt O'Riley on the hour mark after the Dons midfielder tried his luck from the edge of the area.
And within a few minutes Holy saved from O'Riley again. A deep cross found O'Riley at the back post, but Holy saved with his feet before then denying him a second time after the 20-year-old followed up with a low left-footed drive.
Cook made three changes in the 62nd minute, with Nydam making a return to the senior squad having last played for the first-team away to Brentford, two years ago to the day.
Fellow substitute Freddie Sears was inches away from firing the hosts in front in the 70th minute, but his fierce strike from the corner of the box sailed just wide with Dons 'keeper Andrew Fisher rooted to the spot.
Eight minutes later Sears latched on to a through ball from Luke Woolfenden down the right side, but his lobbed shot dropped wide with Fisher in no man's land.
The away side finished the stronger of the two teams, but the Town defence stood resolute to block efforts and clear crosses when called upon.
The result leaves Cook's men three points outside the top six in the League One table, with seven games remaining this term.
Booked: Dobra, Downes.
Town: Holy, Woolfenden, Nsiala, Chambers (C), Edwards (Parrott 70'), Dozzell (Judge 62'), Bishop (Nydam 62'), Downes, Ward, Dobra (Sears 62'), Drinan (Hawkins 88').
Subs not used: Cornell, McGuinness.
MK Dons: Fisher, Lewington (C), Jules, McEachran (Kasumu 71'), Darling, Grigg (Brown 71'), Fraser, Laird, Surman, O'Riley, Harvie (Sorinola 61').
Subs not used: Nicholls, Sorensen, Mason, Houghton.