i'm having the exact same issue unit... i've played every day for almost 2 months, went to log on today and it wouldn't load, so i restarted my client and i get stuck at the "connecting to update server" screen, it then loads but the screen stays black...
i've restarted pc, cleared cache, and re-installed... nothing is working.
some people are still online / able to relog etc. but seems some of us can't. i'm not sure what's going 😕 i just wanna get back on and back to the grind!