I've removed the account and added it back on without hassle before. Now, however, it's not letting me do such action. I've even used the app specifically for adding a Yahoo email account to my Galaxy S3. However, when I try with that method, instead of the regular email method, I get Account setup error occurred: Failed to add account. I've used my Wifi connection to try to add. I've disabled that and tried to use the 4G connection. Both are not letting me adding this account through Yahoo email app. My password is only 8 characters long, so it's not a ridiculous length. What's happening? Setting up the account was fine before, but now I'm having all this trouble with adding it.