Ireland captain Caelan Doris believes they were "not good enough" as they suffered a first home defeat in more than three years against New Zealand.
The All Blacks ran out 23-13 winners in Dublin thanks to Damian McKenzie, while Ireland's discipline cost them late on after they had made a bright start to the second half.
McKenzie scored three of his six penalties before the break to give New Zealand a 9-6 lead, but the visitors started the second half a man light after Jordie Barrett's yellow card for a high tackle.
Josh van der Flier scored a try for the hosts, but McKenzie soon added another three penalties before Will Jordan's try secured New Zealand a first win on Irish soil since 2016.
And Doris pointed to Ireland's discipline as the turning point late on in the game.
"It was intense out there. We were quite reactive out there and our discipline wasn't where it needed to be," he told TNT Sports.
"We got momentum at the start of the second half, but they came back. They were quality, we weren't good enough.
"Discipline was a big part. We didn't fire enough shots and part of that was our defence letting them hold onto the ball. I'm not sure exactly what the answers are, but we weren't good enough tonight."
Ireland were seeking a 20th home win in a row, but New Zealand ensured their impressive run came to a halt on Friday.
It is now five wins on the bounce for New Zealand in all competitions, having followed up their dramatic win over England last weekend.
Head coach Scott Robertson was impressed with what he saw from the All Blacks, both individually and as a team.
"It was a hell of a match, we defended extremely well, and it's really pleasing with all the work we have been doing," he said to TNT Sports.
"Discipline and self-control is an area you have to own it, and I think a lot of individuals did."
On Damian McKenzie, he added: "He is so mercurial, and sometimes he doesn't get it right, but when he does! He got enough right tonight, and I'm really pleased with how he controlled the game and kept calm."