You provide a lot of irrelevant information in your diagnostics, and you forget the relevant part, and that is what IP-address you use for the DNS-server.
http://www.mediacollege.com/computer/network/dns.html tells how to find it in Windows XP. For other versions of Windows it's somewhat different.
So please tell more.
Kees
My laptop is acer aspire v5
The problem i am facing is that I cannot connect to the internet,all my browser says DNS lookup failed,but my wifi connection is perfectly fine.Is there anything I can do to fix this problem?(like changing ip address,dchp of my router or whatever?)
I have done a troubleshoot and this is the result.
Windows Network Diagnostics Publisher details
Issues found
Your computer appears to be correctly configured, but the device or resource (DNS server) is not respondingYour computer appears to be correctly configured, but the device or resource (DNS server) is not responding Detected
Contact your network administrator or Internet service provider (ISP) Completed
Issues found Detection details
6 Your computer appears to be correctly configured, but the device or resource (DNS server) is not responding Detected
Contact your network administrator or Internet service provider (ISP) Completed
Windows can't communicate with the device or resource (DNS server). The computer or service you are trying to reach might be temporarily unavailable.
Detection details
Diagnostics Information (Network Adapter)
Details about network adapter diagnosis:
Network adapter Wireless Network Connection driver information:
Description . . . . . . . . . . : 802.11n Wireless PCI Express Card LAN Adapter
Manufacturer . . . . . . . . . : Ralink Technology, Corp.
Provider . . . . . . . . . . . : Microsoft
Version . . . . . . . . . . . : 3.0.0.41
Inf File Name . . . . . . . . . : C:\Windows\INF\netr28x.inf
Inf File Date . . . . . . . . . : Monday, July 13, 2009 8:37:32 PM
Section Name . . . . . . . . . : OS61_Ralink_0781.ndi
Hardware ID . . . . . . . . . . : pci\ven_1814&dev_0781
Instance Status Flags . . . . . : 0x180200a
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: 3d8a88d5-8a1d-480e-ac17-9306b2048364
Interface name: 802.11n Wireless PCI Express Card LAN Adapter
Interface type: Native WiFi
Connection incident diagnosed
Auto Configuration ID: 1
Connection ID: 1
Connection status summary
Connection started at: 2013-06-10 05:19:03-444
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
-------------------------------------------------------------------------
E8-40-F2-4B-8F-FA Infra <unknown> -54 11 No one simply uses my internet
F8-D1-11-BE-42-16 Infra <unknown> -88 1 Eric Martin TP-Link
B0-E7-54-BE-A2-9A Infra <unknown> -86 3 SINGTEL-2434
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 <unknown> Yes 92 Yes No one simply uses my internet
Infra <unknown> Yes 24 Yes Eric Martin TP-Link
Infra <unknown> Yes 28 Yes SINGTEL-2434
List of preferred networks: 1 item(s)
Profile: No one simply uses my internet
SSID: No one simply uses my internet
SSID length: 30
Connection mode: Infra
Security: Yes
Set by group policy: No
Connect even if network is not broadcasting: No
Connectable: Yes
Information for Connection ID 1
Connection started at: 2013-06-10 05:19:03-444
Auto Configuration ID: 1
Profile: No one simply uses my internet
SSID: No one simply uses my internet
SSID length: 30
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: e8-40-f2-4b-8f-fa
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: 705
Ndis Tx: 1522
Unicast decrypt success: 109
Multicast decrypt success: 0
Unicast decrypt failure: 0
Multicast decrypt failure: 0
Rx success: 3060
Rx failure: 0
Tx success: 2523
Tx failure: 0
Tx retry: 0
Tx multiple retry: 0
Tx max lifetime exceeded: 0
Tx ACK failure: 0
Roaming history: 0 item(s)
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: 3d8a88d5-8a1d-480e-ac17-9306b2048364
Interface name: 802.11n Wireless PCI Express Card LAN Adapter
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: 3d8a88d5-8a1d-480e-ac17-9306b2048364
Interface name: 802.11n Wireless PCI Express Card LAN Adapter
Interface type: Native WiFi
Profile: No one simply uses my internet
SSID: No one simply uses my internet
SSID length: 30
Connection mode: Infra
Security: Yes
Connect even if network is not broadcasting: No
Result of diagnosis: There may be problem

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