connection lost problem can happen when your client file is too old or internet problem.
1. Try the manual update.
2. Delete the entire game and turn off the PC to remove data and re-download client from our website.
3. Check internet connection and firewall, Anti-virus.

Thank you

Did not have problem before update. Did all steps Launcher failed to work. Computer found threat when I tried launcher: Trojan:Script/Wacatac.B!ml

Now what can I do to make game work?

The website also slow loading. What happen to your server ROW??

i have the same problem..i tried to install the manual update but then windows defender pops out says there is a threat.. Trojan:Script/Wacatac.B!ml..it was fine before the update though