IPSEC Goes Into Block Mode After Driver Update

[chupparustam]

I am using SBS 2003 SP2 with 2 NIC. I have also updated the Promise TX 2300 BIOS and Windows driver to the latest version and restarted the server. When the server is rebooted then I am getting a 'Atleast one driver..' error message. There was no network and I have checked services and discovered that IPSEC that was not started. When I tried to start it I was getting the below error:

Event Type: Error
Event Source: IPSec
Event Category: None
Event ID: 4292
Date: 25/07/2008
Time: 12:06:38 PM
User: N/A
Computer:
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. User Action: To restore full unsecured TCP/IP connectivity, disable the IPSec services, and then restart the computer. For detailed troubleshooting information, review the events in the Security event log.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 00 00 00 00 01 00 54 00 ......T.
0008: 00 00 00 00 c4 10 00 c0 ....Ä..À
0010: 01 00 00 00 00 00 00 00 ........
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........

Now I have disabled IPSEC and restarted the server. I have also got the network back and was then able to enable and start IPSEC. Can anyone tell me how do I solve this issue? Thanks.

[anshusehgal]

It might be that you must have installed MS08-037? You can try to see the latest SBS team blog:

http://blogs.technet.com/sbs/archive...nd-951748.aspx

[chupparustam]

Yes, you are right, I have installed the KB951746 & 951748 and it seems to me that this might be the problem. The error only showed up after the restart for Promise TX3200 BIOS and driver updates.