Dagenham & Redbridge claimed victory in this disappointing encounter which now sees the Londoners move into the top half of the table with a bid for a play-off place back on track.
For Stevenage however the defeat was a massive disappointment especially as it followed on from Tuesday night's 1-0 reverse at home to Aldershot.
From the opening exchanges it was clear that the visitors were intent on victory and they could have gone ahead inside the first minute when Chris Moore broke free and saw a goalbound effort blocked by keeper Lionel Perez.
The Daggers came close just seconds later when a ball in from the resulting corner flew across the goalmouth and narrowly missed the far post.
Stevenage battled to get back into the contest but the few efforts they did have were dealt with well by Dagenham keeper Danny Naisbitt.
Dino Maamria and Jon Brady both forced fine saves from the keeper while Naisbitt made an impressive stop just five minutes from the break following a close-range blast from James Gould.
With the half fading out into a draw it was the visitors who took a shock lead as Stevenage fell asleep at a Mark Bentley throw and after Danny Shipp saw his strike come back off the post, Moore reacted quickest to tuck home the loose ball.
The goal was a blow for Stevenage's hopes and the game was to be taken from their grasp just six minutes after the restart when Dagenham added a second.
Tim Cole was the man who applied the finishing touch as he guided the ball in across the face of goal and in off the post following a telling cross.
It signalled a charge from the home side as Brady, Simon Wormull and Anthony Elding all came close in a frantic ten-minute period, but when they failed to find the back of the net and when Rocky Baptiste scuffed the ball from close range when it would of been easier to score, it became clear there was no way back for Boro.