ISA SERVER – Event ID: 14147 – Address Ranges in Conflict

Client computers cannot access external resources, and event ID 14147 appears in the Application log in ISA Server 2004

Well, ran into this yesterday. Of course, wasn’t having the symptoms mentioned (client computers cannot access external resources) but was getting the 14147 errors as a firewall had a static route defined. Seems ISA, while it knows about it, doesn’t really know about it unless its defined within ISA itself.

Ok, boring stuff but leaving this as a note for myself in the future… ๐Ÿ™‚