Configuring preferences and options in Outlook.com
Mine is still functioning for my main account at Hotmail. I do not have 2-factor authenticationon either accoutn, althohg I did test it at a point int his thread to see if that solved the problem -- it did not.
Frankly, I don't see that there can be any way to fix this with 2-factor authentication; if there were, it would undermine the authentication, as hackers coud do the same thing. But most 2-factor authentication sends a message in one form or another, with a code you need to then put in at the login. How could mere software on the Gmail side get that code? Or, is this new method being used more like a one-time authentication to maybe set up an ACH connection between accounts at two banks, it doesn't need to be authenticated every time? I suspect that is what Hotmail needs to set up, a one-time authorization.