Hi We have a server which is facing Ip coonflict issue.. When i check this server in DHCP under address lease , it shows Mac adddress and name as 000. kits

Hi, Does the server has a static IP ? Have you a dedicated subnet for your servers ? Is there a DHCP reservation for you server ? Regards,

Hi Kits, Login into your system and use NBTSTAT command.Then check for the another host which having same IP. 1. Open CMD prompt. 2.Check for IP which is showing in ipconfig/all output. 3. NBTSTAT -A <IP Addr> then it will show the host names which is having smae IP address. After you have done all the above steps go to DHCP/DNS console and delete the host name which causing IP conflict.Regards, Ravikumar P

This is a dynamic IP under DHCP serverkits

Have you identified the another host which is having same IP across your network ? Regards, Ravikumar P

no.. the server has gone down and while running command it gives message no host name found.NSlookup to IP and name list only the same server kits

Hi We have a server which is facing Ip coonflict issue.. When i check this server in DHCP under address lease , it shows Mac adddress and name as 000. kits Since you have a conflict issue then there should be another computer in your network which is using this IP address. For this IP address, you can exclude it from your DHCP if it should be assigned as a static IP address to another host. More if you ask them here: http://social.technet.microsoft.com/Forums/en-US/winserverNIS/threads This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified Technology Specialist: Designing and Providing Volume Licensing Solutions to Large Organizations Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator Microsoft Certified Trainer

This is a dynamic IP under DHCP server kits As you said, if it is a dynamic IP, Server side:delete it from DHCP console and reboot the server. Hope it will take new IP rather than the OLD. Client side: perform 3 commands i.e. ipconfig/flushdns, ipconfig/release and ipconfig/renew.Regards, Ravikumar P

IN dhcp server, under adress leases it showing the machine name as 0oo, with the same Ip and mac address as 0 kits

Delete the entry from DHCP console and reboot it once. Regards, Ravikumar P

Hi Kits, As this thread has been quiet for a while, we assume that the issue has been resolved. At this time, we will mark it as Answered as the previous steps should be helpful for many similar scenarios. If the issue still persists, please feel free to reply this post directly so we will be notified to follow it up. You can also choose to unmark the answer as you wish. BTW, wed love to hear your feedback about the solution. By sharing your experience you can help other community members facing similar problems. Thanks for your understanding and efforts. Best Regards KevinTechNet Community Support

No the issue is still there.. We see that in Dns and dhcp host register itself as 00000000.vam.cng.com.Even after delting it multiple times from DHCp and dns entry this entry keeps coming. The IP address assigned to 000 host needs to be assigned to desktop but since this record keeps registering we are unable to do this.. Is there way to identify where we can find host 00000000.vam.cng.com?kits

Hello Kits, Thanks for posting again. Do this final try, remove the host(whose host name showing as 000000) from the domain and rejoin it.Regards, Ravikumar P

How can i remove it from domain as i'm not able to locate this Host? We have tried removing it from dns and dhcp but it keeps coming back? Apprecaite your suggesstions on thiskits

Remove in the sense, de-join it from domain (bring it to Work group), restart it once and then rejoin it to domain again.Regards, Ravikumar P