- The hardware node is a Windows 2003 server.
- There is no network connectivity with the hardware node: no ping, no RDP connetion and no traffic with the node's IP address can be captured on the network interface.
- All ping requests get "Destination host unreachable" replies.
During the boot process, the following event gets into the System log:
The IPSec driver has entered Block mode. IPSec will discard all inbound and outbound TCP/IP network traffic that is not permitted by boot-time IPSec Policy exemptions. User Action: To restore full unsecured TCP/IP connectivity, disable the IPSec services, and then restart the computer.
- Network connectivity is working fine for containers on the node.
IPSec driver is broken on the hardware node.
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Localif it exists.
regsvr32 polstore.dllto recreate IPSec policies from scratch.