Greetings Jenngerbread,

I'm very sorry to hear that you've been experiencing these connection errors. To help clarify, the error codes 90002 and 90006 are primarily caused by connection issues and the "Unable to download patch files" is a mix of both connection and possibly corrupted data. For us to better assist you, please respond with the following information:

Are you using a VPN?
Are you using a wired or wireless connection?
What Platform are you using? (Steam/Windows/Mac/PS4/PS5)
Does the issue occur with one character or multiple characters?
Has this been a long on-going issue or has this only begun happening recently?

Any additional steps aside from those already provided, taken to resolve the issue:

We do look forward to hearing back from you and thank you once again for visiting the Final Fantasy XIV Technical Support Forums!