Recently I was facing an issue where my website is working fine
with other browsers but it fails on internet explorer. Getting deeper into that
issue I found like session values are lost
on every request on pages on internet explorer, this is because session id actually getting changes on every request on internet
explorer.
Reference: Muthukumar Nadar (http://nadarmuthukumar.blogspot.in)
http://forums.iis.net/post/1873244.aspx