Event ID - 21168

Event Id21168
SourceMicrosoft ISA Server Report Generator
DescriptionServer publishing rule [%1] failed. Publishing a server to the network it resides in requires that requests sent to the server appear is if they are sent from the ISA Server computer.
Event InformationAccording to Microsoft

Resolution:
In the console tree of ISA Server Management, click Firewall Policy. In the details pane, click the applicable rule. On the Tasks tab click Edit Selected Rule. On the To tab, select Requests appear to come from the ISA Server computer.
Reference LinksEvent Id:21168 Source Id:Microsoft ISA Server Report Generator

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