Quote Originally Posted by DoomAngel View Post
My wife and I play at the same times but her destination FFXIV IP is different, even though we are both on Midgardsormr. Months of playing at the exact same time, I've gotten disconnected hundreds of times, and she hasn't been disconnected once. And again, her route is the same as mine, only difference is the destination IP on FFXIV side that is different. My FFXIV server endpoint is 204.2.229.93, and my wife's is 204.2.229.87, but both go through the same path, including the 204.2.229.234 node.
Not SquareEnix support or anything, but... out of curiosity, have you tried having your wife log in on your computer, or logging yourself in on hers? I'm assuming yes, but it isn't mentioned above, and it'd be a useful piece of info. That account A on computer A can play without issue while account B on computer B cannot, and the network topology is seemingly identical between them... well, that's useful info, but not as much as what happens with account A on computer B, and account B on computer A. That second set will make it pretty clear if the issue is the account (in which case, yes, it's almost GOT to be on SquareEnix's side) or the computer.

If you can play fine on her computer and she cannot on yours, I'd suspect something wonky with your computer's networking setup. Yes, Wireshark shows as receiving a TCP FIN, but Ethernet traffic does go through software (drivers, VPN implementations, etc.) on its way to the layer where Wireshark receives it. As Wireshark is a software-based sniffer, it's definitely possible that the traffic you see in Wireshark and the traffic across the physical adapter are not the same. Usually you'd expect those sort of things (firewalls, router rules, etc.) to use TCP RST to communicate that the connection's not going to happen, but I have seen Windows networking stuff use TCP FIN to close a connection on the Windows side when it's blocking it or shutting it off. So even with Wireshark logs showing TCP FIN, it's possible it's something with your computer and not with the FFXIV servers.

But if your account has the same disconnections on your wife's computer, while her account works fine on yours? Then yeah, I'd say the issue almost has to be on SquareEnix's side at that point, at least to some degree.

I hope this can get squared away for you, either way.