Somewhere along the line, upgrading from UAG SP1 RC to SP1 I’d managed to hose my laptop; the infrastructure tunnel was never coming up and IKE Main Mode negotiation was failing. Connecting the client to the LAN and refreshing Group Policy I ran into an error concerning TCP/IP. Looking at the GPRESULT output:
|Group Policy Infrastructure||Success||2/20/2011 4:22:04 PM|
|Registry||Success||2/17/2011 9:40:53 AM|
|Security||Success||2/17/2011 9:40:54 AM|
|TCPIP||Failed (no data)||2/20/2011 4:22:04 PM|
There was nothing in the Application Event Log. The System log, however, had an Event ID 1085 listed. The Details tab gave a clue:
It turns out the IP Helper service had been set to Disabled . Setting the service back to Automatic and rebooting the system, updating Group Policy and everything is back to normal.