Nostalrius Begins - Quality wow vanilla realm (1.12)

I saw several peoples with blue reward from this chain, however i can't finish quest Scarlet Subterfuge.
I just can't interact with Highlord Taelan Fordring.

What i already tried:

1) Abandoned quest 2x times and still nothing.
2) Tried to do without any addon.
3) Destroyed quest item and reset quest.
Nothing helps.

Any ideas?

http://i.imgur.com/rKQQJ8B.jpg

Server crashed and it worked

same problem, do I need to wait for server restart?