How do you fix HTTP 401?

The HTTP 401 Unauthorized error response 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.

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• Check the URL for typos
• Check that the correct credentials are being used
• Check that the correct authentication method is being used

1. Check the URL for typos

1. Verify that the URL is spelled correctly.
2. Check for typos.
3. Fix any typos.
4. Test the URL again.

2. Check that the correct credentials are being used

The steps to check that the correct credentials are being used in order to fix http 401 Unauthorized are as follows: Step 1: Navigate to the page that is causing the error and check the header information for the line that is causing the issue. Step 2: If the header information does not match the expected values, then the credentials used to access the page may not be correct. Step 3: Verify that the user account that is logged in to the server is the correct user account for the website that is causing the issue. Step 4: If the user account is correct, then the issue may be due to incorrect credentials. If the user account is correct, then the issue may be due to incorrect permissions.

3. Check that the correct authentication method is being used

In order to check that the correct authentication method is being used, the following steps should be followed:

1. Login to the server and check the browser's address bar. If the server is configured to use a proxy, the browser should show the proxy settings.
2. Check the browser's security settings. If the server is configured to use a proxy, the browser should show the proxy settings.
3. Check the server's access logs. If the server is configured to use a proxy, the server's access logs should show the authentication request and the response.
4. Check the server's certificate. If the server is using a self-signed certificate, the browser should show a warning message.

If the answers above didn't work then you should also try:

1. Check that the server is configured to accept the credentials being used
2. Check that the network connection is working
3. Check that the server is online
4. Try using a different browser