Problems with MS Proxy NTLM authenticati

I have two MS Proxy 2.0, sp1 servers. Both are set to require NT Authentication. Proxy server "1" works fine. Users with NT Domain accounts are not prompted for authentication every time they access the Web.

However, Proxy server "2", which has an identical setup to Proxy server "1", ignores the fact the I have setup NTLM authentication. It always asks the users for their username/password, etc. and then doesn't work. The only way I can get Proxy server 2 to work is to accept anonymous authentication.

Any ideas?

Tom Morris@indalex.com