Under the Privacy and security section, click on Clear browsing data: The Clear browsing data section in Google ChromeĪ new window will open. If you’re a Google Chrome user, you can do this by clicking on the menu icon in the top-right corner of the browser, and then going to Settings. Similarly, your browser’s cookies might contain authentication data that simply needs to be refreshed. This will clean out any invalid information that’s locally stored in your browser, which could be interrupting the authentication process. Therefore, if you don’t notice any issues with the page’s URL, the next step is to clear your browser’s cache. Unfortunately, sometimes it can also cause unwanted interruptions.Īs we mentioned earlier, one of the common causes of the 401 error is outdated or incorrect cache data or cookies. Your browser’s cache is designed to improve your online experience, by reducing page loading times. If you clicked on a link, confirm that it’s pointing to the page you’re trying to access (or try to visit that page directly through the website). If you typed it in yourself, verify that you spelled everything correctly. Therefore, it’s worth double-checking the URL you used. For example, it might be outdated, or leading to a page that no longer exists (and no redirects are in place).
This may sound simple, but 401 errors can sometimes appear if the URL wasn’t correctly entered in.Īnother possibility is that the link you used to visit the page in question points to the wrong URL. We’ll start off with the easiest potential fix: making sure you used the correct URL. Let’s take a look at five methods you can use: Now that we’ve gone through a bit of background on the 401 error, it’s time to discuss how you can resolve it. Common culprits in this category include an incorrectly-typed URL or an outdated link. It’s also possible that the source of the problem can be attributed to a minor mistake. For example, a firewall or security plugin can mistake your login attempt as malicious activity, and return a 401 error to protect the page. Plugin IncompatibilityĪt other times, this error is caused by a plugin incompatibility or error. If your browser isn’t using the valid authentication credentials (or any at all), the server will reject the request. One of the most common reasons you might experience a 401 error is that your browser’s cache and cookies are out of date, preventing the authorization from successfully going through. So it’s safe to assume that the cause of the problem has something to do with the authentication credentials. While the problem may be happening within your browser, however, it doesn’t necessarily always mean that’s the culprit, which we’ll explain in more detail later.Ĥ01 errors occur on restricted resources, such as password-protected pages of your WordPress site.
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If you encounter an error code in the 400s, you know you’re dealing with a client-side (or browser-side) issue. The HTTP 401 error is all too common 🤦♀️ - and this guide will give you everything you need to fix it the next time you see that message showing up ✅ Click to Tweet What Causes a 401 Error? The code is sent via the WWW-Authenticate header, which is responsible for identifying the authentication method used for granting access to a web page or resource.
However, unlike with the 403 error, the 401 error message indicates that the authentication process failed. This is similar to HTTP 403 Forbidden Error, in that access isn’t permitted to the user. In most cases, it means that something is either wrong with the credentials or with the browser’s ability to read them as valid.
These errors occur on websites that require a login in order to access them. It will include the phrase “HTTP Error 401” at the bottom, and instruct you to contact the site’s owner if the problem persists: The 401 Error in ChromeĪt other times and in other browsers, you might get a slightly less friendly warning that’s just a blank page with a “401 Authorization Required” message: Nginx 401 Authorization Required error message 401 errors can happen within any browser so the message appearing may differ.įor example, in Chrome or Edge, you’ll likely see a paper icon along with a simple message telling you that the page in question isn’t working. A 401 error, in particular, happens when your browser denies you access to the page you’re trying to visit.Īs a result, instead of loading the web page, the browser will load an error message. HTTP 400 status codes are encountered when there is a problem making a request. The server generating a 401 response MUST send a WWW-Authenticate header field containing at least one challenge applicable to the target resource. The 401 (Unauthorized) status code indicates that the request has not been applied because it lacks valid authentication credentials for the target resource. The Internet Engineering Task Force (IETF) defines the error 401 Unauthorized as:
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