And can't connect to lobby server

This is a new problem for me, just started happening for me.

Frequent "lost connection to server." When I come back, often can connect to lobby server. Often, when I do connect, there's no character data. sometimes, when I do manage to log in, I lose connection almost immediate after logging back in.

I'm not losing internet connection - everything else is still connected. Just FFXIV.

Any idea what's going on here?

I've rebooted the router and my computer. I'm very anxious about this what with the expansion hours away.