Game won't launch

It says Play. I click Play. Then it says launching, it gets stuck on launching for around 20 seconds before the Launch button turns back into a Play button. Game doesn’t start.

Sometimes after clicking play it says an Update is available. I click Update. The update either completes incredibly fast (less than 5 seconds) or doesn’t complete at all, I can’t really tell. Then it says Play again. I click play, it says launching, but then nothing happens and the launch button turns back into a play button.

My sibling who lives in the same house as me as the same problem. Is anyone else struggling with this? Is it somehow only our house that has this problem? This has only been happening for 4-ish days so I thought it was a problem on Blizzard’s end but now i’m getting really confused.

Players in this forum can’t assist without your DxDiag file.