UPnP temporary internet files and security

From: David Shorthouse (davidshorthouse_at_shaw_no$pam_.ca)
Date: 05/09/03 

Date: Fri, 09 May 2003 16:57:55 GMT

Hey folks,

    I have a UPnP-capable router and am using MSN Messenger. I am supposed
to have an Internet Gateway Device icon in my network connections folder
with this router. It appears just fine with either a wired or wireless
connection in my laptop's network connections folder, but not for two of my
other wired desktops. I have a suspicion that this may be because of some
sort of security issue in XP Pro SP1 (on all machines), but don't know how
to verify this. Here's why I suspect this:

My laptop discovers the UPnP gateway device just fine and several xml files
get dumped into C:\WINDOWS\system32\config\systemprofile\Local
Settings\Temporary Internet Files\Content.IE5 as they should. However, on
the desktop computers that don't have the icon, these router-specific xml
files never appear in this folder. In addition to this, upon boot, the
laptop also gets a rootDesc.xml file in the user account temporary internet
files, but none of the problem desktop user account receive this file in
their temporary internet files folder.

Am I on the right track here and does anyone know how to resolve this issue?
I would like to be able to control and configure the UPnP-specific ports
using this tool in my desktops and not just the laptop, which is
infrequently connected to the router.

Thanks for any ideas,

Dave