We have a small network with two servers. One exists solely as a file and print server, the other is running Server 2003 as a Domain Controller, DNS server and Exchange server. We are looking at deploying ISA 2006 on this domain controller so I duplicated the PC into a virtual machine as well as duplicating a PC. The problem is that after installing ISA 2006 it blocks all access on the server. The server is unable to access Microsoft update even after configuring to allow access to the site according to MS technet, and the server appears offline via ping or DNS query no matter what roles are created. Am I setting something up wrong? (The rule was created by allowing access from internal to internal over DNS, HTTP, HTTPS, Domain controller. After this failed I also set to all protocols to no avail) I don't believe I am but theres obviously some issue there.
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