After going nine hours and 52 minutes without scoring, Ipswich saved two for the visit of Rangers to Portman Road.
Goals in each half from Alan Lee and Jon Walters put the Tractor Boys in the driving seat and despite Paul Furlong giving Rangers hope with 20 minutes to play, the hosts held on to seal maximum points.
The defeat stretched Rangers winless streak on the road to eight matches - in a run dating back to mid-November, when the R's beat the then league leaders Cardiff City at Ninian Park.
Rangers trailed at the break, despite shading proceedings in an entertaining first half.
Martin Rowlands and Lee Cook both forced Lewis Price in to smart saves in a one-sided opening, before Lee's 25th minute header - from a Gary Roberts cross - gave Ipswich the lead against the run of play.
Rangers continued to create chances after going behind, with Rowlands forcing Price to smother the ball at his near post, as the R's went in search of the all-important equaliser.
Walters made it two with a tidy finish from Roberts' neat through ball, before Furlong came off the bench to give Rangers hope with 20 minutes left on the clock, firing home from close range.
The all-important equaliser proved elusive for the R's though, leaving them with it all to do in the scrap for survival at the foot of the Championship.
John Gregory made one enforced change from the side that drew 1-1 with Plymouth Argyle seven days earlier.
With Dexter Blackstock serving a one-match suspension, England Under-19 international Ray Jones led the line.
Town's recent loan signing Francis Jeffers was named on the hosts substitutes bench.
The R's were on the front foot from the first whistle.
After Gareth Ainsworth won a free-kick on the right flank, Cook's audacious first minute effort from a seemingly impossible angle was nudged round the post by Price at the second attempt.
The resultant corner kick from Cook was flighted to the back post, where Ainsworth returned the ball with interest. The ball appeared to hit a hand on its way back in to the box, yet despite vocal appeals from the visitors and the travelling R's faithful, referee Mr Lewis waved away the appeals.
Rangers forced yet another corner kick - their third of the contest - a minute later and this time it was Jones who met Cook's delivery, glancing his header a yard or so wide.
Ipswich crafted their first opportunity of the contest on nine minutes.
Decent interplay between Lee and Roberts saw the latter coast through unchallenged to the edge of the box. Fortunately for the R's, Roberts' effort with the outside of his left boot flew high and wide of the target.
The R's created another chance on 12 minutes, with Cook seeing his left footed pile-driver deflected to safety, following a free-flowing Rangers counter-attack.
Cook was leading the Tractor Boys a merry dance and when he linked up efficiently with the impressive Jones on 14 minutes, Price was forced to smother the ball at his feet.
Town's most impressive performer, Jaime Peters, fired into the side netting after cutting in from the right flank 60 seconds later, before Rowlands curled a ferocious left footed effort wide of Price's right hand post.
Despite orchestrating proceedings the opening quarter of the match, the R's were grateful to Lee Camp for keeping them on terms on 23 minutes, with the Rangers keeper diving full stretch to his left to keep out Jon Walters' header.
The visitors didn't heed the warning though and when Roberts' cross was met by a superb downward header from Lee two minutes later, Camp was powerless to prevent his carbon-copy effort from nestling in the back of the net.
Undeterred, Gregory's men were back on the front foot almost immediately, with Rowlands forcing Price to save at his near post, after an excellent first touch from Cook's cross allowed the attacker to coast through to the edge of the six-yard box.
The Tractor Boys should've been two goals to the good seven minutes before the break, only for Damion Stewart to rescue the R's when he deflected Lee's snap-shot over the bar.
After Camp made two fine saves in as many minutes to deny Lee at the start of the second half, there was nothing the keeper could do to prevent his strike partner from making it two on 54 minutes.
Roberts again played provider, playing an enticing through ball between Michael Mancienne and Danny Cullip, which Walters pounced on and diverted underneath Camp from eight-yards.
Gregory introduced Furlong at the expense of Ainsworth just after the hour, but it was Ipswich who continued to threaten, with Camp fisting Roberts' thunderous drive to safety on 69 minutes.
A minute later, the R's were handed a lifeline when Furlong arrived bang on cue to poach home his first goal of the season.
Rowlands' initial right foot effort cannoned off the face of the post and the 38 year-old front-man reacted quickest to the loose ball before firing home from inside the six-yard box.
The end-to-end nature of the contest continued seconds later, with Owen Garvan forcing Camp into another super stop after his 30-yard thunderbolt moved one way and then the other on its way to goal.
Buoyed by his goal, Furlong tried his luck with a speculative volley on 79 minutes, only to drag his effort wide of the right hand post from fully 22-yards.
The outstanding Camp denied Jeffers a debut goal to remember when he tipped the Blackburn loanee's effort wide on 87 minutes, before Furlong appeared to be dragged back in the box, only for Mr Lewis to wave away the vocal R's appeals.
Gregory took out his frustrations on the fourth official, but it mattered little, as the R's slumped to another defeat on the road.
Ipswich Town: Price, De Vos, Bruce, Garvan, Legwinski, Peters (Haynes 84), Lee, Walters (Jeffers 71), Wright, Harding, Roberts.
Subs: Supple, Richards, O'Callaghan.
Goals: Lee 25, Walters 53
Bookings: Harding 90
QPR: Camp, Cullip, Bolder, Ainsworth (Furlong 63), Rowlands, Lomas (Smith 82), Cook, Stewart, Timoska, R Jones, Mancienne.
Subs: Cole, Moore, Kanyuka.
Goals: Furlong 70
Bookings: Ainsworth 23, Jones 89
Referee: Mr R L Lewis
Attendance: 21, 412
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