Random DC's and Client Problems

Hopefully this is the right place.

Since Tuesday I have been having nothing but issues with my client and random DC’s.

I randomly get disconnected then when I relaunch with Battlenet its tells me
“We couldn’t log you in with what you just entered.”

I have an authenticator on my account so im not really worried about being hacked or anything. Just want to know if its a simple fix or whats going on?

having same dc issues, just started today, no changes previously on my end. did all the troubleshooting suggestions and no resolution. i opened a ticket but i doubt blizz with figure it out and mark it closed.

Im having the exact same error with “we couldnt log you in with what you just entered”. I launch from the bnet launcher and also have an authenticator. Logged in fine all week until today.