OK this is my third post, I know I was told to only use one but the "Support Team" has directly told me to make another post about this issue.

Ever since patch 4.5 I can't play the game above 72-FPS. If i leave the frame limiters to none or 144-fps the game will give me "Error 90002" whenever I cast a spell or preform an interaction.

Using a wired connection this issue happens all the time, but using WiFi the issue goes away. However I can't play using WiFi because its just not stable enough, also limiting my fps to 72-FPS causes my monitor to have issues so it is not a fix by any means.

I spend good money on a GTX 1080 and a 1440p 144hz monitor to enjoy this game and I can't play it at all since the patch.
No other MMORPG has an issue with my connection or high FPS so the problem can't be with me, bellow are some stuff myself and the SE Support team have tried.

1- Uninstall and reinstalling the game
2- Fresh install of windows 10 with nothing installed but the game
3- Configured my router with open ports and all the other IE configurations that are normally suggested here.

There is basically 0% wrong on my side, I have about 29 days game times left on my account and it is being wasted since patch 4.5
Bellow is a link to a YouTube video I did showing the problem in game.

https://www.youtube.com/watch?v=xHV-HQs7Kzk&t=1s