CMD - Event 4292

Event Type: Error
Event Source: IPSEC
Event Category: None
Event ID: 4292
Date:
Time:
User: N/A
Computer: COMPUTER_NAME
Description:
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.
Sometimes this solution http://support.microsoft.com/kb/912023 is working and I am also using this

net stop policyagent
regsvr32 polstore.dll
net start policyagent
+ reboot of server and it is working.