Tried all sorts of possible fix (deleting patch folder, change Boot.cfg log, use VPN, disable firewall, Manual DNS setting, updating IE Edge, Changing back from Windows 11 to Windows 10.) Non of these fix works. All the thread I can find are outdated.

I downloaded the launcher from official site with FFXIV Boot Ver. 2019.03.12.0000.0001
Start updating the updater/Launcher version.

then the error message pops up. FFXIV Boot Error: Unable to download patch files. [11003][10009][10019]

I've played FFXIV since 2018 and recently got a new desktop. New expansion is coming up. I really wish this game can make downloading easier.

Please help.
Thanks