Constant lag and error 90006

I have recently returned to the game to play from patch 4.4. The last time I played was about 2 months ago yet since coming back I have noticed (mainly during group content) lag spikes I have never experienced before now. When the spikes get to a certain level I get disconnected with error 90006 and when I try to log back in the spikes continue to then disconnect me again with error 2002 after throwing me out of the game completely. I tested other online games on my PS4 and have had no issues whatsoever playing or interacting with others, it seems the issue lies with when I play group content on FF14.

Server: Pheonix
Platfor: PS4
Type of connection: wireless
Other programs running while the game is playing (if any): none
Frequency: Anytime
Everything you have tried to resolve the issue: Reset router, used other online games to test out if issues affected other games but no issues.

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

My first suggestion is to try connecting with a wired Ethernet cable if possible. This will help with the stability of your connection.

Additionally, there are some settings you should configure on the PS4 itself. Please make sure that "Cookies" and "JavaScript" are ENABLED on the PSN Browser. This can be done by going to the web browser on the PS4, press the options button, then go to settings. The options for Cookies and Javascript will most likely be checked, uncheck them and then recheck them.

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!