Solved

Duplicate Name exist on the network

Posted on 2013-06-21
7
474 Views
Last Modified: 2013-06-24
Hi guys!

I have an issue in my network!! I have around 10 windows 7 PCs and around 9 Windows Xp PCs..... since last week we have been getting on ONLY the XP machines (All of them) an error "Duplicate Name exist on the network" this happens every time any Windows XP machine is turn on or connected to our network. I have looked in the network to see if I find a duplicate machine but I didn't find anything!! I don't know what else it might be..... I have a Netgear firewall that is acting as a DHCP.... Do you think the firewall is the issue? Also, this is a network which is under a Domain network. What do yo think? do you have any other ideas on how to troubleshot this?



Thanks,
0
Comment
Question by:hugonieto
  • 4
  • 3
7 Comments
 
LVL 34

Expert Comment

by:Paul MacDonald
ID: 39266653
It seems likely there is a rogue DHCP server on the network, but it could be a WINS issue.  Do you run WINS?
0
 

Author Comment

by:hugonieto
ID: 39266698
Thanks Paulmacd.... Im sorry but how would I find out if Im running WINS? You mean in the server or in the Windows Xp clients?





Thanks,
0
 
LVL 34

Expert Comment

by:Paul MacDonald
ID: 39266735
It's a service - like DNS or DHCP - that is set up by a network administrator.  It's not used much any more, but that doesn't mean it isn't in use on your network.

Have you tried rebooting your Netgear firewall?  That might be worth a try as well.
0
Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

 

Author Comment

by:hugonieto
ID: 39266752
What I just noticed too is that in the server under the Reverse Lookup Zones I have duplicate PTR records! For example 5 of them have different IP addresses but all 5 have the same host name.... this doesn't look normal does it? do you think this has something to do with the issue?




Thanks,
0
 

Author Comment

by:hugonieto
ID: 39266758
Paulmacd,


Then I'm not running WINS.... I have not setup something like that here.... I did tried I few reboots on the firewall and I think It does stop for some hours but then it keeps coming back the problem....
0
 
LVL 34

Accepted Solution

by:
Paul MacDonald earned 500 total points
ID: 39266825
Yes, you can flush any duplicate records from DNS - both on the forward and reverse look up side - and see if that helps.  

You'll need to reboot the computer(s) or run ipconfig /renew to re-register the computer(s) in DNS.
0
 

Author Closing Comment

by:hugonieto
ID: 39273317
Thanks for the solution Paulmacd!!
0

Featured Post

Migrating Your Company's PCs

To keep pace with competitors, businesses must keep employees productive, and that means providing them with the latest technology. This document provides the tips and tricks you need to help you migrate an outdated PC fleet to new desktops, laptops, and tablets.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Port forwarding 14 151
Event ID: 1202 / Source: SceCli 6 107
What is this Task? 4 111
Cisco ASA LDAP Authentication for VPN and Management 8 34
Our Group Policy work started with Small Business Server in 2000. Microsoft gave us an excellent OU and GPO model in subsequent SBS editions that utilized WMI filters, OU linking, and VBS scripts. These are some of experiences plus our spending a lo…
You may have a outside contractor who comes in once a week or seasonal to do some work in your office but you only want to give him access to the programs and files he needs and keep privet all other documents and programs, can you do this on a loca…
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question