Hello,
After installing Service Pack 1 on my Windows Server 2003, the server does not communicate anymore with the rest of my network. This server is a DC. Here's what happens:
During the startup process, the server is "pingable" for a short period of time. Then, there's a window that pops-up saying that "At least one service or driver failed during system startup. Use event viewer to examine the event log for details." At that point, the server acts like it's offline.
I checked the device manager and my network card status is ok. Windows even tells me that the card is connected to the network. Pinging 127.0.0.1 works.
After examining the event viewer, here's what I found:
Event ID: 4292
Source: IPSec
Type: Error
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 the restart the computer. For detailed troubleshooting information, review the events in the Security event log.
Event ID: 7023
Source: Service Control Manager
Type: Error
Description: The IPSEC Services service terminated with the following error: The system cannot find the file specified.
When I look in the services window, I see that the IPSEC Services is stopped. When I try to start it, I get a pop-up saying "Could not start the IPSEC Services service on Local Computer. Error 2: The system cannot find the file specified."
I don't want to disable the IPSec services as suggested in the first error description. I have another Windows Server 2003 SP1 (another DC), and the IPSec service is working fine.
I tried to remove the NIC from the device manager and I rebooted to reinstall it. I tried rebuilding the TCP/IP stack (netsh int ip reset). I tried repairing Winsock (netsh winsock reset). I tried scanning the Windows protected file (sfc /scannow). The only thing that kinda solved my problem was uninstalling SP1. Of course, that is not really an option...
Thanks for your help!
Syl