Being unable to access your Yahoo user account is frustrating, especially if you need to check your email. If your browser will not display your Yahoo account homepage, a few possible causes for this error exist.
The server associated with your Yahoo account may be temporarily down. Such glitches are usually momentary. Shut down your browser, wait a few minutes and then try again.
Try to access other websites within your Internet browser. If you can connect to other websites without any problems, then the issue definitely lies with Yahoo itself. If you cannot connect to anything, then the problem is with your own Internet connection.
Diagnosing Internet Problems
Make sure that all cables are connected securely. Check your router for any red or yellow lights. These indicate a connection error. If restarting your router does not solve the problem, contact your Internet Service Provider.