please see if your pc is pointing to the correct dns server and please disable the Firewall and Av and recheck it again http://www.virmansec.com/blogs/skhairuddin

Hello, to verify some settings plaese post an unedited ipconfig /all from the DC/DNS server and a client with that error.Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Check this similar thread. Thanks

Hi, Thank you for your post. Please make sure your DNS/DC not multihomed NIC, not installed RRAS role and DNS server service running normal. If there are more inquiries on this issue, please feel free to let us know. Regards,Rick Tan TechNet Community Support

my Windows XP clients keeps bringing the error message "the system could not log you on now because the domain <domain name> is not available" if you ping the DC from the client, the ping will be successful. What can I do to resolve this? The DC runs windows server 2008 Many Thanks.

please see if your pc is pointing to the correct dns server and please disable the Firewall and Av and recheck it again http://www.virmansec.com/blogs/skhairuddin