I keep seeing people talking about this error.
There are even some memes already talking about “Error 37”
What is it and where does it come from ?
Error 37 is “Servers are Busy”, please try again later. It starts popping up when too many people try to log onto the Diablo 3 servers at once.
It’s notable because Blizzard specifically warned users that they might run into it at launch, and told them to ignore it and try again.
Bottom line is that the problem is not with your PC or your internet connection, but an error on Blizzard’s end.
Source : Link , Question Author : Robotsushi , Answer Author : Raven Dreamer