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Search Close GO Internet, Networking, & Security > Error Messages
How to Fix a 401 Unauthori...
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lifewire's editorial guidelines Updated on September 15, 2022 Reviewed by Ryan Perian Reviewed by
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Search Close GO Internet, Networking, & Security > Error Messages
How to Fix a 401 Unauthorized Error
Methods to fix a 401 Unauthorized error
By Tim Fisher Tim Fisher Senior Vice President & Group General Manager, Tech & Sustainability Emporia State University Tim Fisher has more than 30 years' of professional technology experience. He's been writing about tech for more than two decades and serves as the VP and General Manager of Lifewire.
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Zoe Mueller 1 minutes ago
lifewire's editorial guidelines Updated on September 15, 2022 Reviewed by Ryan Perian Reviewed by
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Brandon Kumar 1 minutes ago
401 Unauthorized error messages are often customized by each website, especially very large ones, so...
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Ava White Moderator
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lifewire's editorial guidelines Updated on September 15, 2022 Reviewed by Ryan Perian Reviewed by
Ryan Perian Western Governors University Ryan Perian is a certified IT specialist who holds numerous IT certifications and has 12+ years' experience working in the IT industry support and management positions. lifewire's editorial guidelines Tweet Share Email Tweet Share Email Error Messages Browsers Cloud Services Error Messages Family Tech Home Networking 5G Antivirus Around the Web The 401 Unauthorized error is an HTTP status code that means the page you were trying to access cannot be loaded until you first log in with a valid user ID and password. If you've just logged in and received the 401 Unauthorized error, it means that the credentials you entered were invalid for some reason.
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Ava White 11 minutes ago
401 Unauthorized error messages are often customized by each website, especially very large ones, so...
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Amelia Singh 10 minutes ago
How to Fix the 401 Unauthorized Error
Check for errors in the URL. It's possible that the...
401 Unauthorized error messages are often customized by each website, especially very large ones, so keep in mind that this error may present itself in more ways than these common ones: 401 UnauthorizedAuthorization RequiredHTTP Error 401 - Unauthorized Lifewire / Kaley McKean The 401 Unauthorized error displays inside the web browser window, just as web pages do. Like most errors like these, you can find them in all browsers that run on any operating system.
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Julia Zhang 2 minutes ago
How to Fix the 401 Unauthorized Error
Check for errors in the URL. It's possible that the...
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Isabella Johnson Member
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How to Fix the 401 Unauthorized Error
Check for errors in the URL. It's possible that the 401 Unauthorized error appeared because the URL was typed incorrectly or the link that was selected points to the wrong URL—one that is for authorized users only. If you're sure the URL is valid, visit the website's main page and look for a link that says Login or Secure Access.
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Enter your credentials here and then try the page again. If you don't have credentials or have f...
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Daniel Kumar 3 minutes ago
Do you usually struggle to remember your passwords? Consider keeping them in a password manager so t...
Enter your credentials here and then try the page again. If you don't have credentials or have forgotten yours, follow the instructions provided on the website for setting up an account or resetting your password.
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Natalie Lopez 2 minutes ago
Do you usually struggle to remember your passwords? Consider keeping them in a password manager so t...
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Isaac Schmidt 21 minutes ago
Reload the page. As simple as it might seem, closing down the page and reopening it might be enough ...
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Ethan Thomas Member
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Do you usually struggle to remember your passwords? Consider keeping them in a password manager so that you only have to remember one password.
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Joseph Kim 5 minutes ago
Reload the page. As simple as it might seem, closing down the page and reopening it might be enough ...
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Elijah Patel 3 minutes ago
Delete your browser's cache. There might be invalid login information stored locally in your browser...
Reload the page. As simple as it might seem, closing down the page and reopening it might be enough to fix the 401 error, but only if it's caused by a misloaded page.
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Henry Schmidt 38 minutes ago
Delete your browser's cache. There might be invalid login information stored locally in your browser...
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Lily Watson Moderator
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Delete your browser's cache. There might be invalid login information stored locally in your browser that's disrupting the login process and throwing the 401 error. Clearing the cache will remove any problems in those files and give the page an opportunity to download fresh files directly from the server.
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Kevin Wang 9 minutes ago
If you're sure the page you're trying to reach shouldn't need authorization, the 401 Una...
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Madison Singh Member
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If you're sure the page you're trying to reach shouldn't need authorization, the 401 Unauthorized error message may be a mistake. At that point, it's probably best to contact the website owner or other website contact and inform them of the problem. The web site owner of some websites can be reached via email at webmaster@website.com, replacing website.com with the actual website name.
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Jack Thompson 9 minutes ago
Otherwise, find a Contact page for specific contact instructions.
Other Ways You Might See 401 ...
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Victoria Lopez 6 minutes ago
401.3
Unauthorized due to ACL on resource. 401.4
Authorization failed by filter. 401.5
Authorization...
Otherwise, find a Contact page for specific contact instructions.
Other Ways You Might See 401 Errors
Web servers running Microsoft IIS might give more information about the 401 Unauthorized error, such as the following: Microsoft IIS 401 Error Codes Error
Explanation 401.1
Logon failed. 401.2
Logon failed due to server configuration.
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401.3
Unauthorized due to ACL on resource. 401.4
Authorization failed by filter. 401.5
Authorization...
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William Brown 1 minutes ago
401.501
Access Denied: Too many requests from the same client IP; Dynamic IP Restriction Concurrent ...
401.3
Unauthorized due to ACL on resource. 401.4
Authorization failed by filter. 401.5
Authorization failed by ISAPI/CGI application.
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Luna Park Member
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401.501
Access Denied: Too many requests from the same client IP; Dynamic IP Restriction Concurrent request rate limit reached. 401.502
Forbidden: Too many requests from the same client IP; Dynamic IP Restriction Maximum request rate limit reached.
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Charlotte Lee 10 minutes ago
401.503
Access Denied: the IP address is included in the Deny list of IP Restriction 401.504
Access ...
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Lily Watson Moderator
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Friday, 02 May 2025
401.503
Access Denied: the IP address is included in the Deny list of IP Restriction 401.504
Access Denied: the host name is included in the Deny list of IP Restriction You can learn more about IIS-specific codes on Microsoft's the HTTP status code in IIS 7 and later versions page.
Errors Like 401 Unauthorized
The following messages are also client-side errors and so are related to the 401 Unauthorized error: 400 Bad Request, 403 Forbidden, 404 Not Found, and 408 Request Timeout. A number of server-side HTTP status codes also exist, like the often-seen 500 Internal Server Error.
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FAQ What do I do if I receive a http 401 error in Zoom? Double-check the URL to make sure it's a...
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Madison Singh 5 minutes ago
If that doesn't work, log out and log back in again, and if you're still having problems try...
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Nathan Chen Member
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FAQ What do I do if I receive a http 401 error in Zoom? Double-check the URL to make sure it's accurate, and if so reload the page.
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If that doesn't work, log out and log back in again, and if you're still having problems try...
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What's the difference between 401 Unauthorized and 403 Forbidden? A 401 Unauthorized code indica...
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Ryan Garcia Member
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If that doesn't work, log out and log back in again, and if you're still having problems try turning off any themes or plugins that may be active. Clearing your browser cache might also fix the issue.
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What's the difference between 401 Unauthorized and 403 Forbidden? A 401 Unauthorized code indica...
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What's the difference between 401 Unauthorized and 403 Forbidden? A 401 Unauthorized code indicates some sort of issue tied to login credentials for a given web page, while 403 Forbidden errors mean the page has been blocked. Was this page helpful?
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What Is a 401 Unauthorized Error and How Do You Fix It? GA
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Search Close GO Internet, Networking, & Security > Error Messages