I have a windows 2003 Enterprise Edition x32 that after restarting stops responding on the network.
It is a domain controller that is also running Exchange 2003 Standard and one Virtual server instance.
The exact error message is "The ipsec driver has entered a Block mode. IPSec will discard all inbound and outbound TCP/IP network traffic that is not permitted by boot-time IPSec Policy exemption."
One of the suggestions is to stop the IPSec services. However I have a SSL certificate installed.
In addition to the ipsec error message there are 3 others that appear during the restart process all relating to the KDC service.
To fix the problem I simply do another restart and the server starts responding again and the error message goes away.
What on earth could be causing this? Any suggestions would be appriciated.