Notts County head coach Stuart Maynard told BBC Radio Nottingham:
"First and foremost, I'm devastated for the fans who were absolutely incredible today.
"On the game, it was very tough. I thought we started very bright on the edge of their box and we were camped in there quite a lot with a few efforts here and there.
"Then we conceded a very sloppy goal, and in these big games you just can't give a team of Wimbledon's quality at home, with their defensive record, a leg-up. That is what we have given them.
"Sometimes it's the type of goal you concede. We conceded a goal you shouldn't really concede, it's defensively poor from us as a group and it's frustrating.
"If he comes inside and puts one in the top corner, I think it's a different feeling and we come back. But it deflates you a little and goals change games.
"It made it a very up-hill battle. In the second half the frustration creeps in and I don't think we stick to the way we played in the first half, so it's frustrating."