Constant Lag and 90006 errors

I've been playing this game for the last 2 years now on my PS4 Pro, and had barely been affected by things like lag or disconnects. But since last month, I've been constantly losing data packets from FFXIV, and it's gotten to the point where I lag so much that either I die from mechs I could never see until it all catches up, or I end up DCed with a 90006 error. It's frustrating, because I can't do anything. If I DC in battle content, I might cause a wipe. If I craft and DC, then I lose the mats I was using at that time.

For context, I use a PS4 Pro, connected by wi-fi to the router, which is literally 15 feet away in the same room. I've reset both the router and PS4 several times these last few days, and it stil persists. It's only FFXIV on my PS4 that has issues, everything else on any device in the house works perfectly fine.

Good morning and thank you for posting on the Final Fantasy XIV Technical Support Forums.

Does this error occur only when using WIFI? Can you try connecting the system directly to the router with an Ethernet Cable? Additionally, what have you tried so far to alleviate the issue?

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It's only happened on WIFI so far, I am in the process of getting an ethernet cable today. As for what I've done, I've manually reset the router a couple times in the last month, as well as the PS4 Pro, taking out the cables and putting them back after 20 seconds of being off. I've also done a ping test on my PS4 Pro's IP, and I've been receiving packets just fine according to that. I also tried manually reconnecting my PS4 to my router a few times, to see if there was any change, but it still persists.

Same Issue, I'm using WIFI only and the connection lately is extremely bad and unplayable I missed so many days because I can't even log in and do normal daily tasks without affected others people in the dungeon with my connection. I'm playing on PS5, really frustrated

Greetings fellow Eorzean!

Please respond with the following information:

When the disconnect occurs/How often? Does this happen at a specific time frame or day or when doing a specific thing in game?
Does this only happen to one character or all characters?
Internet Service Provider:

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It happens at any time, doesn't matter what I'm doing in game. Be it in a dungeon, trial, raid, or even gathering and crafting.
I've only been using the one character as of late, I'm too scared to try with another.
As for my ISP, I really am not sure. I think it might be AT&T, if I heard my father correctly.

Oklahoma, ATT Fiber. Crystal Datacenter, Mateus server.

Constant disconnects. Positive its not my connection, as I have stong upload and download speeds via PS4 connection test. Also, I have no connection issues using the same wireless router for my computer to play FF14.

Happens around the clock, despite task.