I've been getting this security error in the Event Viewer for a while, everytime I connect to the internet.  Can someone tell me what this means?

Event Type: Failure Audit
Event Source: Security
Event Category: Policy Change
Event ID: 615
Date:  7/18/2003
Time:  6:06:43 PM
User:  NT AUTHORITY\NETWORK SERVICE
Computer: [Removed]
Description:
IPSec Services:  IPSec Services failed to get the complete list of network interfaces on the machine. This can be a potential security hazard to the machine since some of the network interfaces may not get the protection as desired by the applied IPSec filters. Please run IPSec monitor snap-in to further diagnose the problem.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Also, I've been getting many, many errors like this, sometimes several in a minute.  Any ideas?

Event Type: Failure Audit
Event Source: Security
Event Category: Logon/Logoff
Event ID: 529
Date:  7/18/2003
Time:  6:23:12 PM
User:  NT AUTHORITY\SYSTEM
Computer: [Removed]
Description:
Logon Failure:
  Reason:  Unknown user name or bad password
  User Name: Administrator
  Domain:  ADDISON
  Logon Type: 3
  Logon Process: NtLmSsp
  Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
  Workstation Name: ADDISON

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Hi AkujinD, Welcome to the forum.

Have a look here and see if any apply, particularily the last one. If not please post back.

http://www.eventid.net/display.asp?eventid=529&source=