Knowledge can be obtained by interacting with the "Hasrah Ancient Device" that is located in front of the big circular device at the east wall of room 15 inside Hasrah Ancient Ruins ( https://imgur.com/a/Lyhzayp ).

When it is active you will be able to see the inner part glowing and hear it working (even on Lowest/Optimal settings).

After a report from user Lisec it is now believed the device will become active on its own shortly after maintenance.

A more detailed guide (in Korean, you'll have to run it through Google Translate) can be found here: https://www.inven.co.kr/board/black/3584/49735

A short video showing how to navigate to the exact location: https://www.youtube.com/watch?v=pB5YNELcDbc

Found also 2 interaction points to the left and to the right of it; tho they dont seem to give any knowledge.. Yet?
Added screenshots.

Soo, just RNG

It`s active 120 minutes after activation (from server ai logic)

I gained knowledge 3 minutes ago. The device is active after a technical break in the game (August 10 (Wed) Maintenance)

So is it confirmed this is triggered by the amount of people by it? Playing on console and there is no activation. Is there a precursor to this that is needed to get done?

Что-бы получить знание нужно повзаимодействовать с древним устройством Хаас в одной из комнат Древние руины Хаас.

Оно активируется на определённых каналах после технических работ через час или меньше(мб больше), на 120 минут. Оно светится желтым и молнии летают пропустить трудно.

В остальных случаях оно не активно и взаимодействовать с ним нельзя.

Je confirme le post précédent. Posté un perso devant et connexion directe après maintenance, la lumière est active.

I had to switch servers a few times but I confirm that the light was active after maintenance and the option to interact with the "Hasrah Ancient Device" popped up and I managed to get it on K1.

29 minutes after maintenace on Kama 6, light was up and interactable

Swapped from Olvia 3 to Kama 2 Server, didn't light up till 39 minutes after maintenance.

Got it 27 minutes after maintenace on Mediah 1. SA Server.

Got it 4 mins after maintenance was over.

Got it 27 Mins after Maintenance. Logged on to the char. Room was shaking and the device was active. Console/EU

On EU i met another person searching for this two, he switched Kama4-6 and i Cal4-6 after one hour i switched to Cal1 and it was up.

Justo despues del mantenimiendo del dia miercoles, en el servidor kama2 en SA

維修後出現

效果透明度記得調100% 才能看到發光

It activated for me exactly 58 minutes after maintenance on EU/Kama2. After I took it I stood there for another hour and it was still on. I don't know for how long it will keep being on, but I think 1h should be enough for many to get it if they know it exists .

Bom realmente, foi ativado depois da manutenção as 8:00 em servidor SA no dia 25/10/2023, loguei no jogo fui direto no canal kamasylvia 2, não estava ativado quando terminou de carregar as 8:00 mas esperei e depois de 17 minutos ficou ativo, como vc pode ver nessa imagem, Ativado as 8:17 em servidor SA

22.11.2023 - 15:45 CET. Calph4 - We hopped almost all channels in almost 2h and finally found it 1:45h after server update.

A knowledge entry in Mediah adventure journal I after discovering this knowledge entry... Not sure what it means.

I was jumping through Kama 1-6 then finally got it on Calpheon 2, 43 minutes after maintenance. I guess it's just rng between servers so just switch (after maintenance) as long as you get it eventually

The active state on low graphics doesn't have the golden glow. I have added a screenshot showing inactive vs active states on low vs remastered.

Connecté devant 20 minutes après la maintenance sur valencia4, la roue tourne mais rien d'allumé. Passage sur Kama2, ça marche
Connected 20 minutes after maintenance on valencia4, wheel was spinning but no light. Switched on Kama2 and light was activated

Got the Knowledge 15 min after Maintenance today on Mediah 4 had to swap alot channels to find it.

How to get this knowledge and location, you can found here: https://youtu.be/SA9K6TA2AAo

[2025]
Works on Kamasylvia2 after maintenance

15 Min after weekly reset Mediah 2

I try to get this knowledge for 10h and can't find this light.I stay on few servers 1-2h and nothing, i switched all servers and still nothing. Very bad RNG

ужасный рандом не понятно сколько бы не ждал

Don't ever try to swap servers. I swapped servers in EU for 3 hours. Didn't work. Only obtainable at maintance day. Brilliant idea Devolopers.

I got mine on Mediah 1, at 9:36am EDT and 12:45PM in game, 06/26/2025

AFTER WEEKLY MAINTENANCE
Try this channels first!
- Kama2
- Mediah1-2
- Calpheon1

Got it right after maintenance on Calpheon 1 server, in SA

I got mine on Kama 6 about 12 minutes after maintenance ended. I don't think there's a certain time that needs to pass before it shows up on any servers like some people have suggested. It does go away after 2 hours though. It seems like the majority of people find it on the Kama servers but it is randomly decided which server(s) has it after maintenance

梅迪亞三，維修後 47 分出現光。卡瑪一到三伺服器換來換去反而沒有。08/01/2026

Cambiando de servidor kama 1-4 luego del calpheon 1-4 y me lo econtre en "Mediah 4"
I was switching servers, going from Kama 1-4 to Calpheon 1-4, and I found him on "Mediah 4"

Cambiando de servidor kama 1-4 luego del calpheon 1-4 y me lo econtre en "Mediah 4"
I was switching servers, going from Kama 1-4 to Calpheon 1-4, and I found him on "Mediah 4"

Cambiando de servidor kama 1-4 luego del calpheon 1-4 y me lo econtre en "Mediah 4"
I was switching servers, going from Kama 1-4 to Calpheon 1-4, and I found him on "Mediah 4"

Before server reset: no light present and no way to obtain knowledge


Right after server reset: light present, able to interact and obtain knowledge