I have recently installed ISA Server 2004 on Windows SBS 2003 (along with the other service packs). Now, I get the following event:
Windows cannot access the file gpt.ini for GPO CN={31B2F340-016D-11D2-945F-00C04FB984F9},CN=Policies,CN=System,DC=server,DC=local. The file must be present at the location <\\server.local\sysvol\server.local\Policies\{31B2F340-016D-11D2-945F-00C04FB984F9}\gpt.ini>. (Configuration information could not be read from the domain controller, either because the machine is unavailable, or access has been denied. ). Group Policy processing aborted.
I also get a message in Group Policy Object Editor:
The Group policy snapin was unable to save your changes due to the following error:
Configuration information could not be read from the domain controller, either because the machine is unavailable, or access has been denied.
The server has two network cards (one for the internal network and one for the external network). I have set to allow LDAP(S) and RPC.