I keep getting Error Code 179900.

Outlook then prompts me with:

The server for account "Packres" returned the error "[SYS/TEMP] (#AUTH701) Service is not available; please try again later.." Your username/password or security settings may be incorrect. Would you like to try re-entering your password?

I enter the password and Outlook keeps giving me the same error and prompt to reenter my password.

The email account is a Yahoo POP business mail account.

I have no problems accessing my account via my phone and tablet, or via yahoo.com.

I checked for updates, and all updates are up to date.

Any ideas?

Thanks.