Chosen Solution
One day while on my Kindle Fire, I was asked for my Yahoo password (My email provider). An error message came back stating that the password was not recognized. Since then my email has not updated. Ironically, my emails stopped updating on my Samsung Galaxy phone on the same day. Help! Thank you
This seems to be an issue related to your account, it cannot be a device issue as both devices showing account issue. Try resetting your yahoo account password on third device or using browser and your app will automaticaly ask you to login with new password and hopefully will fix the issue
