401 ERROR:
The 401(Unauthorised) status code indicates that the request has not been applied because it lacks valid authentication credentials for the target resource. The server generating a 401 response MUST send a WWW -Authenticate header field containing at least one challenge applicable to the target resource.
A 401 Unauthorized error is an HTTP status code that indicates the page you were trying to access cannot be loaded until you first log in with a valid user ID and password. Here are some key points about this error:
- Cause: When you encounter a 401 Unauthorized error, it means that the credentials you entered (such as a username and password) were invalid for some reason. The server requires valid authentication before granting access to the requested resource.
- Common Scenarios:
- Incorrect Credentials: If you’ve just logged in and received the 401 error, double-check that you entered the correct username and password.
- URL Issues: Sometimes the error occurs due to an incorrectly typed URL or a link pointing to a restricted URL. Ensure the URL is valid and points to the right location.
- Cache or Cookies: Clear your browser’s cache and cookies, then reload the page. A misloaded page could trigger the error.
- Expired Sessions: If you’re using a session-based authentication system, an expired session could lead to a 401 error.
- Access Tokens: For APIs or token-based authentication, ensure you include valid access tokens in the request headers.
- Resolution:
- Check URL: Verify the URL and try again.
- Login or Secure Access: Visit the website’s main page and look for a “Login” or “Secure Access” link. Enter your credentials there and retry accessing the page.
- Password Manager: Consider using a password manager to keep track of your passwords securely.
WHEN IT WILL OCCURE:
HTTP 400 status codes are encountered when there is a problem making a request. A 401 error, in particular, happens when your browser denies you access to page you’re trying to visit. As a result, instesd of loading the web page, the browser will load an error message.
HOW DO I FIX ERROR CODE 401:
Corrupted and outdated browser cache and cookies can lead to unexpected behaviour in your internet browsing. The “HTTP error 401” is one of the possible results. Clearing your browser cache and cookies is recommended for troubleshooting the “401 Unauthorised” error as well as for most of the errors you encounter.
WRAPPING UP:
Remember that each website may customize its 401 Unauthorized error message, so the wording may vary. Follow the steps above to resolve the issue and gain access to the desired content . 😊
