Preventing login as 'NT AUTHORITY\ANONYMOUS LOGON'

I have an asp.net program that uses a connection string, using integrated
security to connect to a sql database. It runs fine on one server, but the
other server gives me the error that
"Login failed for user "NT AUTHORITY/ANONYMOUS LOGON". Why would this be?
There is no reason it should even be trying to login to using NT
Authority/Anonymous login. The IIS Server is set to turn off anonymous
logins, and use integrated security, and my program uses a connection string
with integrated security. And sometimes it does run, almost like there's a
contest between which logon the program is going to use and in about five
minutes it connects properly. But I have no idea why it would be losing the
connection string I have in the web.config. And as I mentioned, it works
fine on another server, the difference being the other server forces the
user to login first. I have one or two forms, with several user controls
that are loaded depending on what the user selects.

Thanks for any assistance you can send my way.




.

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