@just_haxxan Error 30005 is related to EAC,
So when you said you tried most lets see if we can find a solution.
Have you tried to disable your Antivirus and firewall softwares to see if this could be blocking? (if it works, make sure to whitelist your EAC and game to your AV and firewalls inbound/outbound exemptions).
Do you have any 3rd party softwares that may alter the game file that EAC may react on? knowing the past of EAC, do you have anything that controlls RGB etc, or anything else that may alter the game in anyway?
Try to close any other software running alongside the game.
Close any "optimization sofware" if you have this installed.
Do you have Kernel-mode Hardware-enforced Stack Protection on? (A windows security feature) disable this and try again)
Go to Windows Security (search in windows search) and press it, Then go to "Device Security" after this click "Core Isolations" and here you can turn it off.
What Windows are you running?
As you said you did all the updates, do you have any updates for your GPU?
Try to clean boot your PC and see if this stops the issue:
https://help.ea.com/en/help/faq/how-to-clean-boot-your-pc/ 
