spacer spacer spacer
 
     
 
vista
All Solutions
 
vista
Interent Solutions Home
 
vista
Tests
 
vista
Help
 
  arrow Description
  arrow Examples
  arrow Occurrences
  arrow Solutions and Fixes
  arrow Official Explanation
  arrow Forum Help
  arrow Research this Issue
  arrow Notes
 
 
box_image
Partition Commander
Now it's easy for anyone to safely partition their hard drive! You can reclaim waste disk space, organize files, even add new OSes.
 
  RadarSync
Ensures you have the latest drivers and software updates to make your PC run better and safer.
box_image  
 
 
box_image
PC Mover
Move applications, files and settings from one PC to another. Handles Windows upgrades too, even XP 32-bit to Windows 7 64-bit!
     
 
 
Internet Solutions
     
 

401

Unauthorized

 
  Description  
     
  Likely a username or password given was not valid. In essence the web server could not verify you are the correct individual.

Some web servers provide additional information and/or a secondary error number. For example, 401.1. If this occurs, check the Internet solutions list for for a better explanation and solution. 
 
   
  Examples  
     
 
Windows
Server Error

401 - Unauthorized: Access is denied due to invalid credentials.

You do not have permission to view this directory or page using the credentials that you supplied.

Apache
Authorization Required

This server could not verify that you are authorized to access the document requested. Either you supplied the wrong credentials (e.g., bad password), or your browser doesn't understand how to supply the credentials required.


Web Server at ...

 
 
Error messages will differ depending on the web server and if replaced by the web site designers.
 
   
  Occurrences  
     
 
occurance meter
 
 
Frequency is relative to other Internet warnings and errors.
 
   
  Solutions and Fixes  
     
 
  date Votes Ratings
Update Browser
7
    Add    Flag
solution icon

A very old browser might cause this issue. If you are using a old browser consider an upgrade to something current to fix this. Old browsers are also a major security concern.

To get the latest free browser:

 
   
 
transparent
transparent
solves it indicator
risk indicator
effort indicator
 
  FaultWire Staff
Posted: 8-Oct-2008
 
Avatar
 
Use Correct Information
10
    Add    Flag
solution icon

Enter a correct username and password. Remember that most passwords are case-senstive.

 
   
 
transparent
transparent
solves it indicator
risk indicator
effort indicator
 
  FaultWire Staff
Posted: 8-Oct-2008
 
Avatar
 
 
 
  Official Explanation  
     
 
  technical details

The request requires user authentication. The response MUST include a WWW-Authenticate header field containing a challenge applicable to the requested resource. The client MAY repeat the request with a suitable Authorization header field . If the request already included Authorization credentials, then the 401 response indicates that authorization has been refused for those credentials. If the 401 response contains the same challenge as the prior response, and the user agent has already attempted authentication at least once, then the user SHOULD be presented the entity that was given in the response, since that entity might include relevant diagnostic information. HTTP access authentication is explained in "HTTP Authentication: Basic and Digest Access Authentication".

(From Hypertext Transfer Protocol -- HTTP/1.1)
 
   
  Forum Help  
     
 
Forums on topic

Check out what others say about this issue and review or add your own comments and solutions!

Go to Forums on topic.
 
   
  Research this Issue  
     
 
Getting search results...
 
   
  Notes  
     
  "401 Unauthorized" is supported by most Web Servers.

The four hundred series of errors indicate something was sent to the remote web server incorrectly.
 
     
  While we believe this information up to date and accurate, FAQware is not responsible for any inaccuracies. If you find something that is out of date or inaccurate, please let us know at so we can correct it.