Internet not working after W7 upgrade.

Code:

Windows Network Diagnostics
Publisher details
Issues found
"Wireless Network Connection 2" doesn't have a valid IP configuration
"Wireless Network Connection 2" doesn't have a valid IP configuration
Not fixed

Investigate router or broadband modem issues

Failed


Reset the "Wireless Network Connection 2" adapter

Completed




Issues found
Detection details
5

"Wireless Network Connection 2" doesn't have a valid IP configuration

Not fixed






Investigate router or broadband modem issues

Failed





If you're connected to a hotspot or domain network, contact the network administrator. Otherwise: 1. Unplug or turn off the device. 2. After all the lights on the device are off, wait at least 10 seconds. 3. Turn the device on or plug it back into the power outlet. To restart a router or modem that has a built-in battery, press and quickly release the Reset button.



Reset the "Wireless Network Connection 2" adapter

Completed





This can sometimes resolve an intermittent problem.



Network Diagnostics Log


File Name: 

0326DCDE-5DD8-4E43-ADBB-B9261EEB87FF.Repair.1.etl









Detection details



Diagnostics Information (Network Adapter)
Details about network adapter diagnosis: 

Network adapter Wireless Network Connection 2 driver information:

   Description . . . . . . . . . . : Belkin Wireless G USB Network Adapter
   Manufacturer  . . . . . . . . . : Belkin International, Inc.
   Provider  . . . . . . . . . . . : Belkin International, Inc.
   Version   . . . . . . . . . . . : 2.2.0.27
   Inf File Name . . . . . . . . . : C:\Windows\INF\oem54.inf
   Inf File Date . . . . . . . . . : Monday, September 07, 2009  6:23:00 PM
   Section Name  . . . . . . . . . : ATHR_DEV_705C.ndi
   Hardware ID . . . . . . . . . . : usb\vid_050d&pid_705c
   Instance Status Flags . . . . . : 0x180600a
   Device Manager Status Code  . . : 0
   IfType  . . . . . . . . . . . . : 71
   Physical Media Type . . . . . . : 9





Diagnostics Information (Wireless Connectivity)
Details about wireless connectivity diagnosis: 

Information for connection being diagnosed
 Interface GUID: 5ed4e79b-679c-4aba-8070-f7b09d483c84
 Interface name: Belkin Wireless G USB Network Adapter #2
 Interface type: Native WiFi

Connection incident diagnosed
 Auto Configuration ID: 1
 Connection ID: 2

Connection status summary
 Connection started at: 2011-06-01 14:36:13-208
 Profile match: Success
 Pre-Association: Success
 Association: Success
 Security and Authentication: Success

List of visible access point(s): 3 item(s) total, 3 item(s) displayed
        BSSID        BSS Type PHY    Signal(dB)    Chnl/freq    SSID
-------------------------------------------------------------------------
00-18-3A-3E-26-0F    Infra     g    -88        6     (Unnamed Network)
00-12-0E-6C-B7-BD    Infra     g    -88        6     WEST1628
REPLACED NUMBERS HERE H Wifi Connection

Connection History

 Information for Auto Configuration ID 1

  List of visible networks: 3 item(s) total, 3 item(s) displayed
  BSS Type PHY    Security    Signal(RSSI)    Compatible    SSID
  ------------------------------------------------------------------------------
  Infra     g    Yes        24    Yes        (Unnamed Network)
  Infra     g    Yes        24    Yes        WEST1628
  Infra     g    Yes        50    Yes Wifi Connection

  List of preferred networks: 0 item(s)

 Information for Connection ID 2
 Connection started at: 2011-06-01 14:36:13-208
  Auto Configuration ID: 1
  Profile: H Wifi Connection
  SSID: H Wifi Connection
  SSID length: 27
  Connection mode: Infra
  Security: Yes
  Pre-Association and Association
   Connectivity settings provided by hardware manufacturer (IHV): No
   Security settings provided by hardware manufacturer (IHV): No
   Profile matches network requirements: Success
   Pre-association status: Success
   Association status: Success
    Last AP: 
  Security and Authentication
   Configured security type: Open
   Configured encryption type: WEP
   802.1X protocol: No
   Key exchange initiated: Yes
    Unicast key received: No
    Multicast key received: No
   Number of security packets received: 0
   Number of security packets sent: 0
   Security attempt status: Success
 Connectivity
   Packet statistics
    Ndis Rx: 0
    Ndis Tx: 0
    Unicast decrypt success: 0
    Multicast decrypt success: 0
    Unicast decrypt failure: 0
    Multicast decrypt failure: 0
    Rx success: 453
    Rx failure: 0
    Tx success: 33
    Tx failure: 0
    Tx retry: 0
    Tx multiple retry: 0
    Tx max lifetime exceeded: 0
    Tx ACK failure: 0
   Roaming history: 0 item(s)

 Information for Connection ID 1
 Connection started at: 2011-06-01 14:36:08-872
  Auto Configuration ID: 1
  Profile: Discovery connection
  SSID: Home Family Wifi Connection
  SSID length: 27
  Connection mode: Infra
  Security: Yes
  Pre-Association and Association
   Connectivity settings provided by hardware manufacturer (IHV): No
   Security settings provided by hardware manufacturer (IHV): No
   Profile matches network requirements: Success
   Pre-association status: Success
   Association status: Success
    Last AP:
  Security and Authentication
   Configured security type: Open
   Configured encryption type: WEP
   802.1X protocol: Yes
    Authentication mode: Invalid (5)
    Number of 802.1X restarts: 0
    Number of 802.1X failures: 0
   Key exchange initiated: No
   Number of security packets received: 0
   Number of security packets sent: 3
   Security attempt status: Fail 0x0004800f






Diagnostics Information (Wireless Connectivity)
Details about wireless connectivity diagnosis: 

For complete information about this session see the wireless connectivity information event.

Helper Class: Auto Configuration
 Initialize status: Success

Information for connection being diagnosed
 Interface GUID: 
 Interface name: Belkin Wireless G USB Network Adapter #2
 Interface type: Native WiFi

Result of diagnosis: There may be problem








Diagnostics Information (Wireless Network Adapter)
Details about wireless network adapter diagnosis: 

For complete information about this session see the wireless connectivity information event.

Helper Class: Native WiFi MSM
 Initialize status: Success

Information for connection being diagnosed
 Interface GUID: 5ed4e79b-679c-4aba-8070-f7b09d483c84
 Interface name: Belkin Wireless G USB Network Adapter #2
 Interface type: Native WiFi
 Profile: HWifi Connection
 SSID: HWifi Connection
 SSID length: 27
 Connection mode: Infra
 Security: Yes
 Connect even if network is not broadcasting: No

Result of diagnosis: There may be problem








Network Diagnostics Log
File Name: 

0326DCDE-5DD8-4E43-ADBB-B9261EEB87FF.Diagnose.0.etl





Other Networking Configuration and Logs
File Name: 

NetworkConfiguration.cab




Collection information
Computer Name: 
PC
Windows Version:
6.1
Architecture:
x86
Time:
Wednesday, June 01, 2011 2:37:43 PM
Publisher details


Windows Network Diagnostics
Detects problems with network connectivity.
Package Version:
1.0
Publisher:
Microsoft Windows

What Anti-Virus and firewall are you using? Have you flushed the DNS cache and reset Winsock?

I'd also suggest run an ipconfig /release and /renew

Follow this and then Post back with your results also please make sure you run the attached File at the end

Network Posting Tips

Here is a simpler method of collection ipconfig /all data. Also tests ping capability (DNS resolution):

Click on Start then Run and paste the following into the Run box, exactly as shown, including double quotes:

cmd /c "ipconfig /all > postme.txt & ping yahoo.com >> postme.txt & notepad postme.txt & del postme.txt"

and press ENTER.

A file will open in Notepad. Please copy and paste the contents here. Close the Notepad window and the file will be deleted and the Command Prompt window will also close.