Guild Wars 2

I can’t seem to find this info anywhere, and I don’t really run dungeons that often, so I’m a bit confused.

Do I have to be on the same map of the said-instance in order for the joining window to pop up?

Or when someone entered the gate of dungeon, would I see the window even if I’m far away?

Reason I ask this is because yesterday I was joining a AC party, with my teammates already in the instance, the window did not pop up when I joined, but when I just entered Plain of Ashford, it immediately showed up…

You should be on the map where the dungeon is.. It doesn’t matter if the one who started the dungeon is on another server…

Yes, the pop-up should show as long as you’re in the same zone as the dungeon (e.g. Plains of Ashford for AC). You won’t get it otherwise.

There are cases where it won’t show even if you are on the same map but you can just go back to character select or zone in and out. One of those cases is what you mentioned. If you are already on the same map and you join the party after the instance is created.