My Yahoo account keeps dropping out of sync and the message "Check Settings" appear. It says it can't sync because my account info has changed, even though it didn't . I enter my password and it accepts it but it occurs later. This started a few months ago and in the past I would delete and readd the account but it still occurs a few days or weeks later.

Yahoo says it's an issue with Microsoft, and Microsoft says it's a Yahoo issue. But it also occurs which my college e-mail which is an exchange account, though it hasn't happened with that in a long time.