Edinburgh coach Rob Moffat pointed the finger at his side's poor defence after they scored four tries but still lost 49-28 to Newport Gwent Dragons.
The Dragons ran in seven tries, including a hat-trick from Will Harries, to put a major dent in Edinburgh’s hopes of reaching the Magners League play-offs.
Moffat’s side are now fifth in the table, two points behind fourth-placed Glasgow, as they succumbed to the pressure of playing in front of Scotland head coach Andy Robinson.
“Giving away seven tries and some soft tries at that was the basic problem,” said Moffat. “Some simple things, missed tackles – the Dragons scored some good tries but we made it very easy for them.
“Every team prides itself on defence and we will have a good hard look at it. When conditions are like this then you struggle if you miss one to one tackles.”
A losing bonus point was secured thanks to tries from flanker Alan MacDonald, centre Ben Cairns, Ross Ford and a penalty try.
But the Dragons made it eight wins from 16 games with thanks to Harries hat-trick and one apiece for Wayne Evans, Ashley Smith, Richard Fussell and Martin Thomas.