Question : Slow rebooting - 3 to 5 minutes "Applying Computer Setting"

In the past two weeks, we started to have problems with XP workstations.  It takes 3 to 5 min during a reboot to "Applying Computer Setting..'.  We have a SBS 2003 server with 15 XP SP 2 workstations setup as a domain.  The following errors were logged:

4/22/07 -- SERVER SYSTEM ERROR #1
The DHCP service has detected that it is running on a DC and has no credentials configured for use with Dynamic DNS registrations initiated by the DHCP service. This is not a recommended security configuration. Credentials for Dynamic DNS registrations may be configured using the command line "netsh dhcp server set dnscredentials" or via the DHCP Administrative tool.

4/22/07 -- SERVER SYSTEM ERROR #2
Dynamic registration or deletion of one or more DNS records associated with DNS domain 'clc.local.' failed. These records are used by other computers to locate this server as a domain controller (if the specified domain is an Active Directory domain) or as an LDAP server (if the specified domain is an application partition).

After reading many of the questions on this subject, I realized that I did not setup the domain properly using the wizards.  I did not added the XP workstations using the add computer wizard.  I added the workstation to the domain by changing the setting at the workstation from workgroup to domain.  However, the system has been working fine for the last 6 months with no problems.  I know that I need to re-setup the domain correctly, but would appreaciate if these error logs may indicate the problem and a quick fix.  This is actually a system for a non-profit organization where I volunteer, so I usually only have time on the weekends to work on the system.

Thanks for your help.

Answer : Slow rebooting - 3 to 5 minutes "Applying Computer Setting"

HI R_May

The problem is your DNS server should be your domain DNS server (assuming your SBS server is 192.168.1.105).
This should help as windows XP need the domain dns to register against as well as to see the server for authentication.
Cheers
Stu