Simon Lappin insists lessons must be learnt from Saturday's defeat against Gillingham.
Two defensive slips at the beginning of each half handed the initiative to the visitors and United were ultimately left to rue those errors.
Speaking in the aftermath of the 2-1 reversal, Lappin, who again operated in midfield alongside skipper Michael Doyle, said:
"It's disappointing because we gave them their chances and something to hold on to.
"We've got to sit down and talk about it, talk about where we went wrong, get our heads together and learn from it.
"Then, after that, we look to put things right straight away, starting at Bristol City next Saturday."
The Cardiff City loanee added: "We were the better side, most definitely, in the first half but we handed them the lead before doing the same thing in the second.
"And they were poor goals to give away too. We can't afford to do that again.
"We were definitely good enough to have taken at least something from that but it's important we understand why we didn't.
"Fortunately, though, we've got enough quality here to bounce back and go on a good long run, that's our sole focus at present."