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Why does IE ask for username and password?
This issue occurs when one of the following conditions is true: The Prompt for user name and password option is enabled in Microsoft Internet Explorer. The Integrated Windows Authentication check box is not selected in Internet Explorer. You are using a proxy server for the LAN settings in Internet Explorer.
How do you authenticate users?
In authentication, the user or computer has to prove its identity to the server or client. Usually, authentication by a server entails the use of a user name and password. Other ways to authenticate can be through cards, retina scans, voice recognition, and fingerprints.
When to prompt for user ID or password?
Most sites prompt you when a user ID is already taken but in this case you would have to prompt that password is already taken. Prompting the new user this way lets them know if they go to the login page and use that password they will gain access to someone’s account.
Why do I need Windows Authentication to login?
Windows Authentication need your =windows credentials to authenticate user. That’s the reason to prompt the login. To avoid that you need to set your site IP or domain as trustful intranet site in your client browser. For that; 1)Go to Browser settings -> Open proxy settings -> Security -> Local Intranet -> Sites -> Advanced
Why do we not have a username and password?
Also, lack of username prevents user-specific salting, which is a problem for password storage, as long as passwords are of sufficiently low entropy to be exhaustively scanned (see this answer for details on how password should be hashed, including salting). This happens even if the passwords are server-chosen (with enforced uniqueness).
What happens if passthrough authentication is blocked?
If your app is running outside of the LocalIntranet zone, passthrough authentication is blocked, always prompting for User/Password. Is “Enable Windows Integrated Authentication” selected in IE’s Internet Options?