Windows 7: internet connection

Hello
I have read many post in the forum but dont seem to find the solution yet. My issues is as follows
I am using dlink router for the net connection. Initially I had no issues connecting through wifi but recently I seem to have net connection issues. While running the trouble shoot, it shows I am connected to the router but there is no net connection and gets the message dns server not responding. After couple of disconnection and running troubleshoot, I get the connection back but again the problem surfaces after some time. Hence I ran the connection through LAN but still the problem persist
One thing I noticed is that the internet led on the router is not lit for a few seconds when I have this problem and when the light come back then only the connection is resumed. Does it mean the issue is with the router ?? Is there any way to rectify this as I have reset the router couple of time but still it the problem persist. I am using zone firewall if it helps .
Looking for your advice . thanks in advance

In the IP config , there is two DNS servers shown. Is that a problem ???


Windows IP Configuration

Host Name . . . . . . . . . . . . : ASUS-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : Home

Wireless LAN adapter Wireless Network Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : Home
Description . . . . . . . . . . . : Atheros AR9002WB-1NG Wireless Network Ada
pter #2
Physical Address. . . . . . . . . : 74-2F-68-AD-C5-AE
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : Home
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 14-DA-E9-A5-C4-77
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::c8d4:c5df:901d:96c9%10(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 25 March 2012 16:14:13
Lease Expires . . . . . . . . . . : 26 March 2012 16:14:13
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 236247785
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-F1-10-51-14-DA-E9-55-23-42

DNS Servers . . . . . . . . . . . : 192.168.1.1
192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.Home:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes



Tunnel adapter isatap.{BE4B4DA6-7DB3-4095-A2D6-4F134D22EFF2}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

It looks like you have a connection to the router here although the extra tunnel adaptors can cause problems.

How many more of the tunnel adaptors are showing up on this list?

Have you tried changing the wireless channel in your router's control panel?

There is no more tunnel adapter on the list.Regarding the wireless channel, I have not changed it from the default. The snap shot is enclosed to understand the info asked was the same. Just for your info , I also use netbook to connect to the router

I'm not sure why there is two default gateways showing up for your DNS server, there should only be one normally.

Have you tried to designate the DNS server in the routers set up page?

Using Google DNS usually works well, 8.8.8.8 and 8.8.4.4.


If the connection is still dropping out try using a different wireless channel, there could be channel overlap in your area which can cause this problem. Best to find a clear channel using the Xirrus wifi channel scanner, "link below".
Wi-Fi Inspector | Xirrus