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
Solved

Network PC has lost connection to internet but not the network

Posted on 2011-03-24
8
300 Views
Last Modified: 2012-06-27
I've just setup a new Windows 7 Pro PC on our work network, and it has lost its internet connection completely, although it can see the rest of the network. I'm using DHCP -the network and sharing centre shows a connection form the PC to the network but a  between the network and internet. All other Win7 PCs are Ok. When I click on Diagnose it says ' A problem is preventing the troubleshooter from starting' The detail says "an error occurred while troubleshooting c:\windows\diagnostics\system\networking\.  Error code:Ox800B01DE.
I've tried - turning off IPv6 , doing a system restore back two days, rebooting, removing the network cable so it redetects the Ip.
Any ideas?
0
Comment
Question by:alanterrill
  • 5
  • 3
8 Comments
 
LVL 13

Expert Comment

by:lee555J5
ID: 35208685
"removing the network cable so it redetects the Ip"
That's not the way that works.

Type ipconfig in a cmd tool. Do you see an IP address/subnet mask in the expected range? Is the default gateway correct? Can you ping the gateway? Can you ping other boxes? Can other boxes ping this one?

Lee
0
 

Author Comment

by:alanterrill
ID: 35210358
I did that- it showed a correct IP and subnet and DNS but the default gateway showed twoa ddress -the top one was 0.0.0.0 and the bottom one the correct one. I tried putting a fixed address in and it then connected to the internet..
0
 
LVL 13

Expert Comment

by:lee555J5
ID: 35210983
Does the 0.0.0.0 gateway appear in the advanced network settings for this connection? Can you delete it?

Lee
0
What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

 

Author Comment

by:alanterrill
ID: 35230277
No there's nothing in the gateway filed in advanced settings. I've just tried filling that field in with the correct gateway IP and after a reboot IPCONFIG still shows 0.0.0.0 as the default gateway.
0
 
LVL 13

Expert Comment

by:lee555J5
ID: 35232147
Does this box have more than 1 network port? If so, is the cable in the correct one? Try swapping them.

It's been a few days, so let's refresh. In this network connection's properties, it is set to Obtain an IP address automatically. ipconfig shows 2 Default Gateways, with 0.0.0.0 on top; and the gateway section in advanced settings shows nothing. But, if you set the IP address, netmask, and gateway manually, everything works; and ipconfig shows your manually input settings correctly.
0
 

Author Comment

by:alanterrill
ID: 35232542
Its only got one network port. Yes your summary is correct.
I've just spent the morning resetting the PC to its factory settings then reloading all the software and checking the network setting after each install. It now seems to be OK.
0
 

Accepted Solution

by:
alanterrill earned 0 total points
ID: 35240240
Right, I've sorted it now. The very last program I installed was Adode CS3 studio. After a reboot the internet stopped working again. I uninstalled Adobe and the internet returned. So I read up on CS3 and although its compatible with Windows 7, it automatically installs Bonjour, which is the bit that causes the problem. Bonjour doesn't show up in MSconfig but can be seen running in Task manager as a process called mDNSResponder.exe. Stopping the process is not enough, it has to be removed altogether. Heres how:
From a command prompt type "C:\Program Files\mDNSResponder.exe" -remove
Then go to c:\program files\Bonjour . Find the file mdnsNSP.dll and rename it to .old
Restart the computer and delete the folder c:\program files\bonjour
Now the internet works and so does Dreamweaver
0
 

Author Closing Comment

by:alanterrill
ID: 35312551
It works
0

Featured Post

Simplifying Server Workload Migrations

This use case outlines the migration challenges that organizations face and how the Acronis AnyData Engine supports physical-to-physical (P2P), physical-to-virtual (P2V), virtual to physical (V2P), and cross-virtual (V2V) migration scenarios to address these challenges.

Question has a verified solution.

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

This article offers some helpful and general tips for safe browsing and online shopping. It offers simple and manageable procedures that help to ensure the safety of one's personal information and the security of any devices.
When you try to extract and to view the contents of a Microsoft Update Standalone Package (MSU) for Windows Vista, you cannot extract the files from the MSU. Here we are going to explain how to extract those hotfix details without using any third pa…
In this video, we discuss why the need for additional vertical screen space has become more important in recent years, namely, due to the transition in the marketplace of 4x3 computer screens to 16x9 and 16x10 screens (so-called widescreen format). …
This Micro Tutorial will teach you how to the overview of Microsoft Security Essentials. This is a free anti-virus software that guards your PC against viruses, spyware, worms, and other malicious software. This will be demonstrated using Windows…

792 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