In the guide, you will come to know how to open the Triple Authentication Room in Honkai Star Rail. You have to follow the simple steps in this guide to do so.
First, you will need to go to the master control area of the ship because all of the slides are on the ship. You have to go to the right side, and you will find an orange glowing object on the floor. If you cannot find it, you need to keep progressing in the story. And you also need to complete some side quest, and then it will appear on the ship.
You will find a guy there named Afro in the same area, and you need to talk to him five to six times, and then he will give you a key. Now you need to head over to the story zone. You need to go towards the left side and go through the door when you get there. When you get inside the room, you need to do a puzzle to get the lights lined up. So now you need to go to the other room on your right side and then go up the ramp.
You will find a key on the floor when you get to the upper side. Once you have the key, you need to go back to the base zone of the map, and there is only one door locked there, so you have to use all the items that are inside, and in the end, you will get your reward.