Hey,
Hope this aint a repost.
So i was farming chests only in the Citadel especially the secretly big hidden treasure chests since they give alot better loot i had 1min left on debuff for the timer to finish and i was no where close to finishing the instance.
When the debuff was still 1min not less i dced myself with unplugging the network cable, i logged back in after 1min and debuff was gone and all the chests but i was still inside the instance and could complete the quest
The reason why i dced myself with 1min left and not less because when you alt+F4 or dc your net your char is still online for a min so i didnt risk my char being on and blizzard dong autoteleport when the timer goes off.
And yes with this exploit when you still complete the zone you can open the trove chests in the celland hand in the quest, just dont die inside to random shit.
Enjoy
P.S.: Reason why farming alot of trove chest keys is good is because you can get the new LFR items from them without LFR being out, 502 ilvl epics trying on other toons so hopefully i can get a screenshot for more proof!
Edit:
Ok gonna try it again in a few mins,
but for rest do the following steps plz
1. Dcing at 1:30 timer left to try be safe
2. Replug net after wow gets disconnected
3. Log another char to observe your main char going offline
4. After dcing at 1st step count 2mins and then log in, dont log earlier than that.