Same problem here.
It started today when I get to the east shroud I get the first bsod, after rebooting I launched the game again and after 15 minutes I get another bsod, so I turned it to windowed mode, and get the bsod again.
Before it I was getting to much connection lags, maybe it's something related to lan drivers [?]
It's my first month, so, if i continue getting this problem i wont subscribing to it.
i'm new to mmorpgs and just played it because i'm a huge fan of FF series