Can't login getting 2 error code

Hi. Today about 16.00 at server time trying first time login after update.
First i get error wow51900223 and look via internet that I need update my client. I manually update client via menu battle.net client (automatically he dont want update). After that I got dialog window for reset options becouse my hardware change. I choose yes and after that I try start client and got second error blz51901016. I read some post here and blue post where u say that I must choose graphics card. I did it all and nothing, still get that error (clear all cashe ingame directory).