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Windows 7: LAN doesn't have a valid IP configuration! (ICS prob.)

05 Nov 2009   #1

Windows 7 Ultimate (64 bit)
 
 
LAN doesn't have a valid IP configuration! (ICS prob.)

I have instaled Windows 7 Ultimate 32bit on my new computer. (Dual boot with XP). On my old computer there was installed XP... so the problem is:
When i tryed to share Internet connection Windows 7 gave me an error:
"Local Area Connection" doesn't have a valid IP configuration
but files were shared and i could transfer files from one computer to the other... (only Internet didnt work)...
So i got back to win XP and tried to share connection ( XP vs XP ) and it worked great...
Then i thought: maybe windows 7 and windows XP cant share internet connection... and i installed windows 7 on the old computer (Windows 7 vs Windows 7)...
But then both computers came up with the same error ("Local Area Connection" doesn't have a valid IP configuration).

I tried winXP on the new comp and windows 7 on the old... and it worked great!!!
I figured out thet something is wrong with windows 7 on my new computer and i did a clean installation 3 times and the same error came up...

I tried all this things and nothing worked:

1)Disable/enable NIC
2)Install latest drivers for my NIC
3)Roll back the drivers
4)cmd -> ipconfig /refresh /release
5)Disabled ip v6
6) netsh winsock reset catalog
7)tried to manually enter IP
8)tried automatic IP
9)disabled Firewall
10)Bonjour is not instaled on my windows

I really dont know what else to do so somebody PLZ HELP!!!!

CPU: Intel Core2Duo E8400 (3.00 GHz) Motherboard: Asus P5Q SE Memory: 2GB Kingston DDR2 Graphics Card: GeForce 9800 GTNIC: Atheros AR8121/AR8113/AR8114 PCI-E Ethernet Controller
(i downloaded drivers for NIC at ASUSTeK Computer Inc.)I attached some screenshots and my IPCONFIG








Attached Images
   
Attached Files
File Type: txt IP CONFIG.txt (1.8 KB, 921 views)
My System SpecsSystem Spec
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05 Nov 2009   #2

7600.20510 x86
 
 

Not advisable to be posting that .txt online. It has your specific hardware info in it that can be abused by hackers. Especially because you connect directly to internet.

Try setting up static ip addresses for your machines and disable the mode/router's DHCP server.

Edit hosts file for each machine accordingly.
My System SpecsSystem Spec
05 Nov 2009   #3

Windows 7 Ultimate (64 bit)
 
 

i set up a stactic ip addresses on both computers (i used this guide Get A Static IP! How to set a static ip address for your computer (for p2p, web servers, bittorrent, etc) for Linux, Windows, and Mac.)...
but im not sure how to disable the ,,mode/router's DHCP server''.
My old computer is connected directly to new computer through NIC, and modem is connected to new computer through USB.
My System SpecsSystem Spec
.


05 Nov 2009   #4
aem

Windows 7 Ultimate 64Bit
 
 

Quote   Quote: Originally Posted by tonibgd View Post
i set up a stactic ip addresses on both computers (i used this guide Get A Static IP! How to set a static ip address for your computer (for p2p, web servers, bittorrent, etc) for Linux, Windows, and Mac.)...
but im not sure how to disable the ,,mode/router's DHCP server''
How exactly did you configured your static IPs? screenshot your ipv4/6.

As for changing auto DHCP to Static IP, your router's control panel has these setting which you should select.

But if you have applied static IP to your machine (ipv4/6), that setting is void, per machine that you have set it as static ip.
My System SpecsSystem Spec
05 Nov 2009   #5

Windows 7 Ultimate (64 bit)
 
 

file sharing still works great but ICS does not...
here are the screens...


Attached Images
  
My System SpecsSystem Spec
05 Nov 2009   #6
aem

Windows 7 Ultimate 64Bit
 
 

Your default is 192.168.1.1, why two same screens?
My System SpecsSystem Spec
06 Nov 2009   #7

Windows 7 Ultimate (64 bit)
 
 

Quote   Quote: Originally Posted by aem View Post
Your default is 192.168.1.1, why two same screens?
im confused right now...
i will appreciated it if you can you just post 2 screenshots of how should it look (one for IP for new and one for old computer)
My System SpecsSystem Spec
06 Nov 2009   #8

7600.20510 x86
 
 

Default gateway and dns server for both machines = 192.168.1.1

subnet mask for both machines = 255.255.255.0

Ip address of both machines = 192.168.1.xxx

Change xxx for each machine to something different.

Example:

COMPUTERA 192.168.1.120
COMPUTERB 192.168.1.121

(Disclaimer - xxx is not like 42nd street in the mid 80s)
My System SpecsSystem Spec
06 Nov 2009   #9

Windows 7 Ultimate (64 bit)
 
 

I did everything you said.
Now there is no more error but ICS still doesn't work.
File sharing still works great...

Any other ideas?


Attached Images
  
My System SpecsSystem Spec
06 Nov 2009   #10

7600.20510 x86
 
 

Start menu search box. Copy and paste services.msc to it. Hit enter. Look at Internet Connection Sharing (ICS) service. Set it to automatic and start it too.
My System SpecsSystem Spec
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 LAN doesn't have a valid IP configuration! (ICS prob.)





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