Hello - this thread is a consequence of an issue I am encountering in 2 days now. I have had an alt on level 3 Dark Brotherhood, and willing to help another I decided to go there to show some dailies from within, seeing that access was formerly gained as per quest - etc etc.
To my surprise the door was impossible to cross, the "open" option greyed out, and the auto-message in the corner that "The uninitiated may not pass through this door. Turn back." in full display. To be sure one may not enter if one has not done the first quests - but then like I said I was already level 3. I dropped the issue and started today on a new char and in company that questline.
Surprise surprise! Both me and my partner after having gained access, having finished the first main quest and going on about Elam Drals first quest, we cannot deliver. The door is equally shot, and the message of refusal is there alright just like yesterday. This pretty much kills that entire dlc and no, reloging the game does not work. Talking to previous npcs does not work either, since they are no longer there ( checked thieves' den and Anvil docks - no Amelie or messenger), the lighthouse is empty and there's no way out of it. Please fix the Dark Brotherhood door!
Thank you!