Random Freezes, Error 90000 followed by Error 2002

This has been happening to me a significantly high amount lately, mainly during the peak hours of the day for US servers (I'm on Leviathan).

It seems as though I can be anywhere, even in less-crowded areas, and suddenly everything stops moving and my chat barely updates itself. I can still move myself, but I cant chat or interact with anything properly.

After a minute of this, I eventually get kicked off with an Error 90000. I am forced back to the main menu, so I hit "Start" again when it's available. However, it also freezes for about 10-20 seconds, not showing anything on the screen except for the animated background and the "Cancel" button, and soon the screen goes black with an Error 2002 message, kicking me off the game entirely, forcing me to log on all over again, only to have those errors again and again. This seems to start 5 minutes after logging in without fail every time.

However, it becomes less frequent whenever I log on during late evening hours! I figured it might have something to do with the server being full because it seems to happen whenever I log in after being put into a Queue first.

However, regardless of errors and length online, there are times when my screen randomly freezes up, as if I were getting the 90000 error again, only for it to correct itself after about 5-10 seconds. This has no pattern and is very random, but it's terrible during major boss fights and dungeon runs when I'm trying to avoid huge attacks.

Is there something I can do about this or is it something only SE can do?