To be honest I have been getting those codes since the start. I even boosted the range of my dlink router and still would not maintain a atleast a 65% connection on wireless. And that my friend is what is causing your connection to fail.
I am hardwired to the router now, and I still get kicked off once in a while. Although when the 2.36 update was released it has subsided to maybe once every month and half.
Let me know if it still ever kicks you off atleast once...or rather when and if it does kick you off.
BTW: All of you will parrish tonight if any of you so dare jump online...hehe