Roadrunner email sign-in failure

[AC Question]

I have two RR accounts loaded on my Note 10.1. I am getting emails on one of the accounts, but on the other one I am suddenly receiving email sign-in failure notices saying that the server password has changed and to enter the new password. The server password has NOT changed. I'd appreciate comments on how to solve this problem.

 

[Golfdriver97]

Have you tried clearing the cache for the email app in Settings>Application Manager?