Why is my browser (IE) prompting me for user credentials?
Symptoms: Internet Explorer is sending previously cached credentials.
Note: This Knowledge Base article references software which is not maintained or supported by Cisco. The information is provided as a courtesy for your convenience. For further assistance, please contact the software vendor.
Under certain circumstances, Internet Explorer may send previous credentials, instead of the current credentials. This will cause authentication to fail and IE will then prompt for credentials. This may occur when a user clicks on "remember my password" when they are prompted for user credentials. The credential information is stored on the system and remains cached even after a reboot.
It doesn't appear that Internet Explorer provides a method to clear this data using the UI. The profile can be temporarily changed by relocating directories under this path:
For Windows XP users:
C:\Documents and Settings\<USERNAME>\Application Data\Microsoft\Credentials