I'm experiencing this exact problem. Posting to bump this thread.

Quote Originally Posted by Kashaar View Post
And another. The other threads for this issue have been locked and placed in the "resolved" section of the boards; that would be incorrect.

When the issue manifests, communication with the server seems to stop. Any characters around you will freeze in place, any mobs will freeze in place. Of course, you can still move around (client-side), and if you're in combat you can continue to cast -- but the mob's HP will not decrease and debuff/DoT icons won't appear, etc.

After 5-10 seconds, one of two things will occur. Either A) Everything will "catch up", with damage numbers appearing everywhere and all action continuing normally, or B) You'll get error 90000 and be DC'd. Essentially, communication between the client and server appears momentarily interrupted, and things either catch up and clear up, or you get booted.

Please address, as leves instantly fail when you get 90000'd (draining one of your attempts), and I'm afraid to set foot in a dungeon like this. The issue first appeared (for me) following the big maintenance on Tuesday. Prior to that (over the weekend, and during the beta) it never occurred.

Usual things like network connectivity on this side have all checked out OK. Connections everywhere else remain up, no packet loss.