FFXIV Boot Error [11003][10009][10019]

[PaixWolf]

Hello, my friend and I have been trying to trouble shoot his FFXIV Boot Error for 3 months now. Sometime after patch 4.4 came out his FFXIV launcher stopped downloading properly. When he launches it, it opens a download bar that says:
"Updating the FINAL FANTASY XIV: A Realm Reborn Updater/Launcher version.
Downloading ffxivboot - 2019.1.18.000.001"
With a loading bar that read "0.01MB/0.00MB" and flickers every few seconds.

After a short time he gets an error pop-up that says:
FFXIV Boot Error
Unable to download patch files.
[11003][10009][10019]

We have tried every fix we could find on the forums, right down to registry editing. We also tried factory restoring his laptop and even installing FFXIV on his old desktop, but they continued to have the same error even when he tried different internet connections such as going to a friend's house or going to an internet cafe. He has tried the steam version as well (Normally uses the stand alone) and has the same issue, the only platform he has been able to play it on is PS4, but his mouse/keyboard don't work with the playstation version.

His is using an ASUS ZenBook UX510UW and the specs are:
Intel® Core™ i7 6600U 2.5GHz Processor
16GB DDR4 @2133MHz
NVIDIA GeForce GTX 960M w/4GB
Hitachi 931GB HHD