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Windows 7: Once more: "No network access - unidentified network"

22 Jul 2009   #1
taurus7050

Win 7 RC
 
 
Once more: "No network access - unidentified network"

Hi all,

first of all please excuse my bad English. I'm writing from Germany. My question: Is it possible to delete all network settings in order to restore them automatically through Windows or manually? If yes, how to do this? Which registry keys and/or other settings must be deleted? Or do I have to reinstall Win7 RC completely?

The reason of my question: Since few days I'm confronted with the "No network access - Unidentified Network" problem on one of my three Win7RC-notebooks. It's the only network I can see and it's a wired connection. I didn't make any changes to Windows and on the router. The network diagnosis tells me that the IP-configuration is incorrect, but it doesn't say how and where to correct the settings. All necessary services are running, but it's impossible to create a new network connection. The router firmware is up to date and the router works fine for the two other Win7-laptops. They too have a LAN-connection to the network and the Internet.

I've tried the solutions suggested here in the forum, but unfortunately no one works. Reinstalling and updating the LAN cable driver also doesn't provide a solution. I have also imported the network and firewall settings from the two other notebooks, but it didn't solve the problem.

Many thanks for any help und kind regards

Taurus


My System SpecsSystem Spec
.

22 Jul 2009   #2
Dinesh

Windows® 8 Pro (64-bit)
 
 

Hi taurus and Welcome to the forums.
Lets fix this issue.
1: Click on Start and in the Start Search box, type ncpa.cpl and press Enter.
2: Right click on Local Area Connection and Click Properties.
3: Double Click Internet Protocol Version 4(TCP/IPv4).
4: Make sure you have Obtain IP address automatically and Obtain DNS server address automatically options checked(have a dot).

Let me know the results in order to proceed.
My System SpecsSystem Spec
22 Jul 2009   #3
taurus7050

Win 7 RC
 
 

Hi dinesh,

many thanks for the prompt reply. Both options were and are activated but unfortunately the problem persists.

Kind regards
Taurus
My System SpecsSystem Spec
.


22 Jul 2009   #4
Dinesh

Windows® 8 Pro (64-bit)
 
 

Alright, now at the bottom right side of the screen, right click on the network icon and click Troubleshoot problems. Let me know what results it brings.

-untitled.png


My System SpecsSystem Spec
22 Jul 2009   #5
srq2625

Win7 Ultimate, x64
 
 

Just a quick thought - this sounds a lot like what happens when the Bonjour service is installed and runs amuck.

To see if is installed/running take a look in "program files (x86)" for folder "Bonjour". If it's there, the following page might be of help....

Completly Uninstall and Remove Bonjour Service and Files (mDNSResponder.exe, mdnsNSP.dll) for Windows « Amarjeet Rai’s Blog
My System SpecsSystem Spec
22 Jul 2009   #6
Robert Cartman

Windows 7 RTM x64
 
 

Try to disable and then enable again the network adapter in the device manager.
I heard it somewhere, may be will help.
My System SpecsSystem Spec
22 Jul 2009   #7
srq2625

Win7 Ultimate, x64
 
 

Quote   Quote: Originally Posted by Robert Cartman View Post
Try to disable and then enable again the network adapter in the device manager.
I heard it somewhere, may be will help.
If that does work, that's a symptom diagnostic pointing to the Bonjour service.
My System SpecsSystem Spec
22 Jul 2009   #8
taurus7050

Win 7 RC
 
 

The results are:

LAN-connection has no valid IP-Configuration
The windows firewall is incorrectly configured
The HomeGroup Permissions are incorrect

(s. attachment; partly in German because of German Windows)


Attached Files
File Type: pdf network.pdf (151.5 KB, 2657 views)
My System SpecsSystem Spec
22 Jul 2009   #9
taurus7050

Win 7 RC
 
 

Quote   Quote: Originally Posted by srq2625 View Post
Just a quick thought - this sounds a lot like what happens when the Bonjour service is installed and runs amuck.

To see if is installed/running take a look in "program files (x86)" for folder "Bonjour". If it's there, the following page might be of help....

Completly Uninstall and Remove Bonjour Service and Files (mDNSResponder.exe, mdnsNSP.dll) for Windows « Amarjeet Rai’s Blog
Thanks, but there are no Bonjour files and folders on the laptop.
My System SpecsSystem Spec
22 Jul 2009   #10
Dinesh

Windows® 8 Pro (64-bit)
 
 

Quote   Quote: Originally Posted by taurus7050 View Post
The results are:

LAN-connection has no valid IP-Configuration
The windows firewall is incorrectly configured
The HomeGroup Permissions are incorrect

(s. attachment; partly in German because of German Windows)
click on the 1st result.
My System SpecsSystem Spec
Reply

 Once more: "No network access - unidentified network"




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