Wifi doesn't have a valid IP configuration

I recently bought a windows 8 laptop which used to access the internet fine for a few weeks but after a couple of updates it has stopped accessing the internet. Now i am getting NO NETWORK ACCESS with the yellow exclamation mark 
When i tried troubleshooting, i got the response, "Wifi doesn't have a valid IP configuration". I have tried many of the suggestions that i have found on the forum like resetting TCP/IP stack with the netsh winsock reset catalog and netsh int ip reset reset.log hit  but this has not changed anything. please help me i am getting desperate here.
 
This is the Diagnostics Information Detection Details

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

Network adapter WiFi driver information:

   Description . . . . . . . . . . : Ralink RT3290 802.11bgn Wi-Fi Adapter
   Manufacturer  . . . . . . . . . : Ralink Technology, Corp.
   Provider  . . . . . . . . . . . : Microsoft
   Version   . . . . . . . . . . . : 4.0.0.200
   Inf File Name . . . . . . . . . : C:\Windows\INF\netr28x.inf
   Inf File Date . . . . . . . . . : 25 July 2012  20:37:13
   Section Name  . . . . . . . . . : NDIS61_RT3900E3.ndi
   Hardware ID . . . . . . . . . . : pci\ven_1814&dev_3290
   Instance Status Flags . . . . . : 0x180200a
   Device Manager Status Code  . . : 0
   IfType  . . . . . . . . . . . . : 71
   Physical Media Type . . . . . . : 9

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

Information for connection being diagnosed
 Interface GUID: be787534-2d3a-468d-a2cc-613d2ecbd914
 Interface name: Ralink RT3290 802.11bgn Wi-Fi Adapter
 Interface type: Native WiFi

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

Connection status summary
 Connection started at: 2013-07-23 23:21:52-678
 Profile match: Success
 Pre-Association: Success
 Association: Success
 Security and Authentication: Success

List of visible access point(s): 2 item(s) total, 2 item(s) displayed
        BSSID BSS Type PHY Signal(dB) Chnl/freq    SSID
-------------------------------------------------------------------------
00-1A-A9-61-1C-E8 Infra g -91 11 Vinu
28-C6-8E-3D-58-46 Infra <unknown> -74 1 NETGEAR81

Connection History

 Information for Auto Configuration ID 1

  List of visible networks: 2 item(s) total, 2 item(s) displayed
  BSS Type PHY Security Signal(RSSI) Compatible SSID
  ------------------------------------------------------------------------------
  Infra g Yes 18 Yes Vinu
  Infra <unknown> Yes 52 Yes NETGEAR81

  List of preferred networks: 6 item(s)
   Profile: Ashish
    SSID: Ashish
    SSID length: 6
    Connection mode: Infra
    Security: Yes
    Set by group policy: No
    Connect even if network is not broadcasting: No
    Connectable: No
     Reason: 0x00028003
   Profile: Vinu
    SSID: Vinu
    SSID length: 4
    Connection mode: Infra
    Security: Yes
    Set by group policy: No
    Connect even if network is not broadcasting: No
    Connectable: Yes
   Profile: NETGEAR81
    SSID: NETGEAR81
    SSID length: 9
    Connection mode: Infra
    Security: No
    Set by group policy: No
    Connect even if network is not broadcasting: No
    Connectable: No
     Reason: 0x00028003
   Profile: BSNL_AP
    SSID: BSNL_AP
    SSID length: 7
    Connection mode: Infra
    Security: Yes
    Set by group policy: No
    Connect even if network is not broadcasting: No
    Connectable: No
     Reason: 0x00028003
   Profile: SAINTGITS
    SSID: SAINTGITS
    SSID length: 9
    Connection mode: Infra
    Security: Yes
    Set by group policy: No
    Connect even if network is not broadcasting: No
    Connectable: No
     Reason: 0x00028003
   Profile: NETGEAR81 2
    SSID: NETGEAR81
    SSID length: 9
    Connection mode: Infra
    Security: Yes
    Set by group policy: No
    Connect even if network is not broadcasting: No
    Connectable: No
     Reason: 0x00028001

 Information for Connection ID 1
 Connection started at: 2013-07-23 23:21:52-678
  Auto Configuration ID: 1
  Profile: Vinu
  SSID: Vinu
  SSID length: 4
  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:  00-1a-a9-61-1c-e8
  Security and Authentication
   Configured security type: WPA2-PSK
   Configured encryption type: CCMP(AES)
   802.1X protocol: No
   Key exchange initiated: Yes
    Unicast key received: Yes
    Multicast key received: Yes
   Number of security packets received: 0
   Number of security packets sent: 0
   Security attempt status: Success
 Connectivity
   Packet statistics
    Ndis Rx: 1536
    Ndis Tx: 934
    Unicast decrypt success: 53
    Multicast decrypt success: 0
    Unicast decrypt failure: 0
    Multicast decrypt failure: 0
    Rx success: 2778
    Rx failure: 0
    Tx success: 315
    Tx failure: 0
    Tx retry: 0
    Tx multiple retry: 0
    Tx max lifetime exceeded: 0
    Tx ACK failure: 0
   Roaming history: 0 item(s)


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

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

Helper Class: Auto Configuration
 Initialise status: Success

Information for connection being diagnosed
 Interface GUID: be787534-2d3a-468d-a2cc-613d2ecbd914
 Interface name: Ralink RT3290 802.11bgn Wi-Fi Adapter
 Interface type: Native WiFi

Result of diagnosis: There may be problem




 
 
InformationalDiagnostics 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
 Initialise status: Success

Information for connection being diagnosed
 Interface GUID: be787534-2d3a-468d-a2cc-613d2ecbd914
 Interface name: Ralink RT3290 802.11bgn Wi-Fi Adapter
 Interface type: Native WiFi
 Profile: Vinu
 SSID: Vinu
 SSID length: 4
 Connection mode: Infra
 Security: Yes
 Connect even if network is not broadcasting: No

Result of diagnosis: There may be problem


 
 
Come on guys any help would be hugely appreciated
 
Question Info

Last updated August 19, 2018 Views 1,332,405 Applies to:
Answer

Hi Punnen,

I understand that you are facing issues with wireless network.

 

We appreciate your effort to resolve the issue. I suggest you to perform the following troubleshooting steps also and check if it helps.


The issue could be caused if there is a miss match in the IP address configuration.


Method 1:


Release and renew IP address for your computer:

a. Press Windows key + X and select “command prompt (admin)”.
b. Type ipconfig /release and hit Enter.
c. Then type ipconfig /renew and hit Enter.
d. Type Exit and hit Enter.


 

Method 2:


Follow the steps to manually assign IP address:

a. Open Network Connections by pressing Windows + X keys on the keyboard and select Control Panel. In the search box, type adapter, and then, under Network and Sharing Center, click View network connections.
b. Right-click the connection that you want to change, and then click Properties. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
c. Click the Networking tab. Under This connection uses the following items, click either Internet Protocol Version 4 (TCP/IPv4) or Internet Protocol Version 6 (TCP/IPv6), and then click Properties.
d. To specify IPv4 IP address settings, do one of the following:
• To specify an IP address, click Use the following IP address, and then, in the IP address, Subnet mask, andDefault gateway boxes, type the IP address settings.
e. To specify IPv6 IP address settings, do one of the following:
• To specify an IP address, click Use the following IPv6 address, and then, in the IPv6 address, Subnet prefix length, and Default gateway boxes, type the IP address settings.
f. To specify DNS server address settings, do one of the following:
• To specify a DNS server address, click Use the following DNS server addresses, and then, in the Preferred DNS server and Alternate DNS server boxes, type the addresses of the primary and secondary DNS servers.
g. To change advanced DNS, WINS, and IP settings, click Advanced.

 

Method 3:


An automated troubleshooter is a tool that can find and automatically fix some problems with your computer. These troubleshooters aren't designed to fix every problem, but they're a useful tool to try because they can often save you time and effort.

Run the Network Troubleshooter from the link:

 

Wired and wireless network problems:


http://windows.microsoft.com/en-us/windows/network-connection-problem-help#network-problems=windows-8&v1h=win8tab1&v2h=win7tab1&v3h=winvistatab1&v4h=winxptab1

 

This should resolve the issue.

 

If you face any issues related to Windows feel free to contact us and we will be happy to help you.


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