Server connection issues with login and in-game

[Arya2323]

Date & Time: July 22nd, 23rd and 24th 2026
Frequency: All the time
World name: Crystal Server, Diabolos World
Character name: Arya Thornwood
Retainer name: Leelyana
Class/Level: Black Mage lvl 35
Party or solo: Solo
In-game time: 32 hours total
Area and coordinates: Southern Thanalan
Housing: None

Issues:
1- Login is often difficult. Every now and then, receving this kind of error message : Impossible to connect to server or server issues
2- If login is somewhat successful, the world is having issues as lagging, npcs or monsters are experiencing latence while attacked, actions are taking several seconds to proceed (talking to NPCs, calling chocobo etc)
3- Server connection is lost after 2 to 5 minutes in game

Connection Specs
** Made a speed test, internet is very stable and fast on my side **
Download Mbps
188.92

Upload Mbps
56.64

Ping ms
12

- Type of internet connection/provider: Videotron, Ethernet

■ PC Specs
-=-=-=-=-=-=- System Information -=-=-=-=-=-=-

SYSTEM_OS Windows 11 Pro 64-bit (6.2, Build 9200) (26100.ge_release.240331-1435)
SYSTEM_CPU AMD Ryzen 7 3700X 8-Core Processor (16 CPUs), ~3.6GHz
SYSTEM_CORE_NUM SYSTEM_CORE_LOGIC 16 SYSTEM_CORE_PHYSICS 8
SYSTEM_BIOS 5044
SYSTEM_LANGUAGE English (Regional Setting: English)
SYSTEM_MEMORY 32676.824MB
SYSTEM_VIRTUAL_MEMORY 134217727.875MB
SYSTEM_PAGE_FILE 34724.824MB
SYSTEM_STORAGE D:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 931.496GB SYSTEM_FREEDISC_SPACE 439.460GB
SYSTEM_DIRECTX_VERSION DirectX 12
GRAPHICS \\.\DISPLAY1 NVIDIA GeForce RTX 2070 SUPER
GRAPHICS_CHIP NVIDIA GeForce RTX 2070 SUPER
GRAPHICS_VRAM 7989.000 MB
GRAPHICS_SHARED_VRAM 16338.412 MB
GRAPHICS_DISPLAY_MODE 1920 x 1080 (32 bit) (60Hz)
GRAPHICS_DRIVER_VERSION 32.00.0016.1074 7/1/2026 20:00:00
GRAPHICS_SHADER V:3.0 P:3.0
GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT
GRAPHICS \\.\DISPLAY2 NVIDIA GeForce RTX 2070 SUPER
GRAPHICS_CHIP NVIDIA GeForce RTX 2070 SUPER
GRAPHICS_VRAM 7989.000 MB
GRAPHICS_SHARED_VRAM 16338.412 MB
GRAPHICS_DISPLAY_MODE 1920 x 1080 (32 bit) (60Hz)
GRAPHICS_DRIVER_VERSION 32.00.0016.1074 7/1/2026 20:00:00
GRAPHICS_SHADER V:3.0 P:3.0
GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT

[Pudringchumenes]

Thank you for posting in the Final Fantasy XIV Technical Support Forums!

I apologize for the delay in our response to your concern and sorry if you cannot log in right now.

Your symptoms seem to point directly to packet loss or bad routing nodes between your internet provider and the data center, rather than your local bandwidth speed.

Quick Fixes & TroubleshootingFlush your DNS and reset Winsock:

Open Command Prompt as an administrator and run ipconfig /flushdns followed by netsh winsock reset, then restart your computer.

Switch DNS settings: Change your IPv4 DNS addresses to public ones like Google (8.8.8.8 and 8.8.4.4) or Cloudflare (1.1.1.1).

Test a Gaming VPN: Because standard speed tests only measure general throughput, a routing-focused gaming tool like ExitLag or a secure tunnel can bypass the specific faulty hops causing your 2-to-5-minute disconnects.

Ensure that ffxiv_dx11.exe is explicitly allowed through your Windows Firewall and added to your antivirus exclusion list.

I hope this information resolves the issue for you. Hope to see you online!

Thank you for visiting the Final Fantasy XIV Technical Support Forums!