Following a reboot of our web server this morning each visit to the server results in a new session being started, so session variables are not being retained.<BR><BR>Does anyone know how IIS knows that ‘this’ client request should get a new session. Is it down to the absence of an HTTP_COOKIE header in the request?<BR><BR>According to the administrator the server has a 20 minute timeout on sessions and has aspsessions enabled.<BR>