Billy Davies endured another frustrating time on the sidelines as his side created the majority of chances against their in-form opponents but drew a blank to make it just two wins from nine games.
20,966 watched the action as the Reds slipped just outside the play-off places in the Championship.
The biggest talking point of the game came when Simon Cox went down in the penalty area and claimed a penalty only for referee Scott Mathieson to shake his head, a decision that Ipswich boss Mick McCarthy praised afterwards.
"He got the decision correct and he should be lauded for that. It is not me seeing things through rose-coloured specs. I have seen it and it was not a penalty."