Tunnel adapter Local Area Connection* 12: Media State : Media disconnected

Are you broadcasting your wireless network? What is the SSID? How are you attempting?

The output you listed indicates that this machine was able to receive a DHCP address from the gateway. So it isn't clear where the problem is at this point. Can you do the following from the device that works as well as one of the devices that doesn't work?

Ipconfig /all
Netstat -rn

Also what type of wireless router and wired router (if different) do you have?

The OP will correct me if I am wrong here, but I think the output the OP displayed is from the wired PC, not the wireless.

I agree more info is needed, I would like to make sure the OP does in fact have wireless, it's broadcasting, she's correctly attempting to connect etc... Before we get into many more details of more serious things. The reason for this is DHCP does seem to be working fine (as shown in the output) and maybe the OP confused a wired router for wireless, or another setting on the router is enabled the OP didn't know about etc...

Waiting for more info....

Also, the two tunneling adapters are IPv6-IPv4 (and vice versa) translators. They are used inconjuction with IPv6. Since most users don't use IPv6 then they either disable the IPv6 or the adapters. But, they do no harm and you don't need to worry about them. The one you need to worry about is IPv4 but by the ouput you have displayed, you're successfully connected to your network.

Provide the information asked by cajalat and myself and we can further assist you.

Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\sai konkala>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : NEERUVASUSAI
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) 82562V 10/100 Network Connection

Physical Address. . . . . . . . . : 00-1C-C0-3D-AD-7B
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::8560:351a:8af8:cd7e%9(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.178(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Wednesday, January 05, 2011 9:43:08 PM
Lease Expires . . . . . . . . . . : Thursday, January 06, 2011 9:43:07 PM
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 201333952
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-0F-9C-3F-1D-00-1C-C0-3D-AD-7B

DNS Servers . . . . . . . . . . . : 192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 6:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e76:241c:14c2:3f57:ff4d(Pref
Erred)
Link-local IPv6 Address . . . . . : fe80::241c:14c2:3f57:ff4d%8(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Local Area Connection* 12:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{9598DF1F-A033-45B6-ABC5-73C914709
E5D}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\sai konkala>netstat -rn
================================================== =========================
Interface List
9 ...00 1c c0 3d ad 7b ...... Intel(R) 82562V 10/100 Network Connection
1 ........................... Software Loopback Interface 1
8 ...02 00 54 55 4e 01 ...... Teredo Tunneling Pseudo-Interface
17 ...00 00 00 00 00 00 00 e0 isatap.{9598DF1F-A033-45B6-ABC5-73C914709E5D}
================================================== =========================

IPv4 Route Table
================================================== =========================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.0.1 192.168.0.178 20
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.0.0 255.255.255.0 On-link 192.168.0.178 276
192.168.0.178 255.255.255.255 On-link 192.168.0.178 276
192.168.0.255 255.255.255.255 On-link 192.168.0.178 276
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.0.178 276
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.0.178 276
================================================== =========================
Persistent Routes:
None

IPv6 Route Table
================================================== =========================
Active Routes:
If Metric Network Destination Gateway
8 18 ::/0 On-link
1 306 ::1/128 On-link
8 18 2001::/32 On-link
8 266 2001:0:4137:9e76:241c:14c2:3f57:ff4d/128
On-link
9 276 fe80::/64 On-link
8 266 fe80::/64 On-link
8 266 fe80::241c:14c2:3f57:ff4d/128
On-link
9 276 fe80::8560:351a:8af8:cd7e/128
On-link
1 306 ff00::/8 On-link
8 266 ff00::/8 On-link
9 276 ff00::/8 On-link
================================================== =========================
Persistent Routes:
Noi did what you asked and I'm not a girl......