Thanks for your post and Merv's input.
I agree that please first install the hotfix 961775 as Merv pointed out. In addition, KB884114 explains the meaning of Event 404 and 408 for your information:
DNS event messages 1 through 1614 in Windows Server 2003 http://support.microsoft.com/kb/884114
If the issue still occurs, let's temporarily disable all 3rd party anti-virus and firewall software on the SBS server for test purpose. Then test the issue again.
Hope this helps. Also, if you have any questions or concerns, please do not hesitate to let me know.
Microsoft Online Newsgroup Support
Please post your SBS 2008 related questions to the SBS newsgroup on Connect website: https://connect.microsoft.com/sbs08/...i/default.aspx
Please post your EBS related questions to the EBS newsgroup on Connect website: https://connect.microsoft.com/ebs08/...i/default.aspx
If you want to use a newsreader other than a web forum to access these newsgroups,
please refer to the following blog to apply NNTP password and configure a newsreader: http://msmvps.com/blogs/bradley/arch...ewsgroups.aspx
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
This posting is provided "AS IS" with no warranties, and confers no rights.