SharePoint - Users constantly get prompted for userid and password
Fix - Set your browser trusted sites to https://intranet.uillinois.edu and https://mysite.uillinois.edu
Issue - SharePoint users constantly get prompted for Userid and Password. This is a browser issue and not a SharePoint issue specifically.
Check to see if both url's are listed in your settings for Internet Explorer.
If sites are NOT listed, you can add them as follows:
Open Internet Explorer
Click Tools>>Internet Options
Click Security Tab
Click Local Intranet
Click Sites button