Posting it here because it took me forever to find the solution. And it worked. Once I did this, it stopped insisting my username/password was wrong and I haven’t had any issues since.
not sure why this solution is not being spread around more. But to fix this issue, what you have to do it add a “\” before your username. for example:Username: \domain\usernamePassword: whatever your password isMake sure you save to your keychain after. This has worked for me. Im not sure where I found this, but it was a lifesaver. Hope it helps for you!