Do you have the same issue if you follow the OP’s steps to reproduce it?
Yes
Provide extra information to complete the original description of the issue:
The South-East Asia server was unavailable on 03/03/24 & 03/04/24 at various times throughout the day when I attempted to connect to it, giving the error noted by the OP.
The in-game South-East multiplayer server listing had the small red dot beside it indicating that the servers were off-line (or had very high latencies?). The other servers were shown as on-line, & the West Coast server was operational, as also noted by the OP.
At time of screenshots below (03/05/24 @ 17:00 UTC), SE Asia & North Europe were unavailable. The Online Server Monitoring Page showed servers were online, Playfab showed no applicable problems, XBox showed scheduled maintenance (see below).
Are you using DX11 or DX12?
DX12, on build 1.37.5.0.
Are you using DLSS?
No (TAA)
If relevant, provide additional screenshots/video:
As this time - 17:00 hrs UTC, the SE & North Europe servers are offline:
SE Asia & North Europe servers notification:
West USA, East USA & Northern Europe Notification:
XBox