Request.Servervariables("Logon_User") giving problem

[Amitava Bardhan]

Request.servervariables("Logon_user") returns and empty
string on one asp page but works perfectly well returning
the NT user id on the other asp page. Both the pages are
in the same directory. This directory has both Anonymous
Access and Integrated Authentication enabled at the IIS.

 

[Marina]

Try taking away the anonymous authentication.