Luton Town boss Rob Edwards admitted frustration after their 0-0 draw with FA Cup opponents Bolton Wanderers.
Luton must go to Bolton now for their Third Round replay.
Edwards said: "Disappointed not to win the game. It was pretty much one-way traffic in that second half but we've hit the woodwork, we've huffed and puffed and had a nailed on penalty - and I don't see the point of VAR if it's not going to overturn that decision.
"That's really frustrating. I never blame that but that was a mistake.
"The players performed well, we just couldn't find that goal to get us over the line. Credit to Bolton, they've done well but we should have won the game.
"I still believed that we could do it. The next action [after Alfie Doughty hitting the inside of the post] was the penalty, the non-penalty.
"We believed right to the very end that we could find a way to win but today it wasn't to be, our schedule changes a little bit and we have to go and do it in the replay."
He added: "We completely valued this game today, it was important to try and get through, respect Bolton because they're a very good team, they're riding high and confident.
"I love this competition and I want to do well in it as well. So we went for it, we wanted to win the game. No doubt about it."