Have been experiencing this issue since July 5, 2014.

I have 3 Yahoo email accounts synced to my Live Mail.  I am receiving just fine for 2 of those accounts, but one keeps asking for my password or saying that I'm using and incorrect password.  I have reset my password in Yahoo 4 times already.  I do not want to delete and add again because I have too much information that will be lost. 

For the past week, when I need to send mail from that account I've been doing so through Yahoo -- which sucks big time and I don't want to send ads to people that I need to communicate with. 

What is going on with this????