Att Yahoo Prodigy

Something has happened in past few days and I cannot use K9 to receive emails from my Prodigy.Net email. I know my password is correct as I can see my email using Yahoo and Currently. Com.
Any idea why?

yahoo has been implementing their shift from accepting the site-wide password to using either an app-password or oauth2 for 3rd-party apps on a rolling basis across their sites. if, as it sounds, you are still using your site-wide pw for k-9 i suspect that that is the issue. you’ll need to make the switch to either an app-password or oauth2 (the latter is likely easier).