Can't connect to the game

Yesterday i had a bug with the achievements not showing instead getting a !!Missing!! sign. Then i followed a guide here to fix it and now i can’t enter the game because it gets stuck in “connecting to server…” and i get a different error. At least yesterday i was able to play now i have this and can’t log into the game.
I tried all the fixes that are here like reset ip / change dns / etc and none of it worked. i can still play other games in battle net like overwatch or warcraft 3 my only problem is with d3

Have you considered telling us what the error message is, so people might have some hope of giving you suggestions on how to fix it?

There was an error (Code 1021)
That’s all it says

In which case…

I just wanted to check up here! The details on the post that Meteorblade mentioned would be greatly helpful to look into! For the !!Missing!! issue, this is usually a caching issue or a connection related issue. There’s a few steps that might help with the issue.

  • Delete the Tools & Cache folders for the Blizzard Application.
  • Try a different region to see if the same problem occurs.
  • Try an alternative connection or VPN to test.