Valid authentication time has expired

I can start the game from the launcher but as soon as I hit start it shows now processing for a second before displaying this error message and closing the game. I can still connect to the retail servers and I can access the Gamez servers from another computer to play the game just fine. Before the update to catch up the the retail version the error displayed as a permanent now processing box. Anyone have any advice on how to fix this?
So far I've tried:
-restarting the launcher
-restarting the computer
-force checking files
-running launcher as administrator
-redownloading the game and launcher
-redownloading in different file location/drive

 

I had the same Issue, try exiting completely and re-opening launcher

 

https://www.reddit.com/r/blackdesertonline/comments/4qu107/valid_authentication_time_has_expired/

 

tried that and no change

everything but the launcher and game has been closed, even checked right before I hit start

 

I didn't mean that bit, though it applies... everyone is downloading the patch, and servers are never stable on patch day. Give it awhile.

 

Ah, if its about that part I've had this problem for weeks on this computer. So I don't think that applies

 

Hrm. If it thinks the timeframe to login is going over, and you arent multi boxing... same issue can be caused by an XML error.

Go to your Black Desert file folder, open User Cache and delete all files inside the folder. Relaunch.

 

Just tried that but no change

 

Now back to being stuck at now processing, if that helps anyone figure out whats going on

 

I'm stuck there as well. Fresh install, no clue what's going on...