?
Solved

Incorrect DNS ip address entry in the Network Card properties

Posted on 2006-10-31
2
Medium Priority
?
346 Views
Last Modified: 2013-11-09
Here is the situation.  For a bout a month now 2 laptops and a PC in my network are showing the following simptoms, not all the time but every week or so this machines will boot and the user will call saying that their email is not working (Outlook-Exchange 2003), an ipconfig /all command shows that the NIC has the following values

100.10.10.50  IP
255.255.0.0  MASK
100.10.0.1  Gateway

192.168.1.1  DNS   (corect entry should be 100.10.0.9)

The DNS server entry is wrong, after I issue an ipconfig /release and /renew I get the correct DNS entry and email works just fine.  Then a few days latter it happens again.

my DHCP server is serving the correct values other PCs get the correct entries.

One more thing.  Yesterday, one of the 2 laptops would not let go of the DNS entry 192.168.1.1  an ipconfig /release /renew did not fix the problem.  The only way to get rid of the entry was to manually assign the correct value.

Any ideas or help is welcomed
0
Comment
Question by:stylmark
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 3

Accepted Solution

by:
KVR_Solutions earned 1500 total points
ID: 17843012
When you edit the properties of the NIC, there may be an additional entry for DNS in the advanced section. Click on the Local Area Connection Properties, then TCP/IP properties, then the Advanced button, then click the DNS tab. Do you see the 192.x.y.z listed in there? If so, remove that.

If that's still a problem, download a DHCP discovery tool, such as RoadKill's DHCP Find - http://www.roadkil.net/dhcpfind.html

This will tell you if in fact your DHCP server is handing out a bogus address - or perhaps you have a second DHCP server on the network.

Hope this helps,

Ira @ KVR
0
 

Author Comment

by:stylmark
ID: 17843753
Roadkill found the issue. ThanX
0

Featured Post

Ransomware Attacks Keeping You Up at Night?

Will your organization be ransomware's next victim?  The good news is that these attacks are predicable and therefore preventable. Learn more about how you can  stop a ransomware attacks before encryption takes place with our Ransomware Prevention Kit!

Question has a verified solution.

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

When it comes to security, there are always trade-offs between security and convenience/ease of administration. This article examines some of the main pros and cons of using key authentication vs password authentication for hosting an SFTP server.
This article will inform Clients about common and important expectations from the freelancers (Experts) who are looking at your Gig.
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…
Suggested Courses
Course of the Month12 days, 19 hours left to enroll

777 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