Windows 7 DNS server not responding

I'm experiencing wireless connection problem right in the middle of browsing. Loading of page suddenly stops. The wireless connection seem fine cause I don't see any exclamation point appearing next to it. I tried to powercycle but it did not help. It comes and goes for couple of days. I troubleshoot the connection and receive this message: "Your computer seems to be correctly configured, but the device and resource (DNS server) not responding. Here is the ipconfig /all turn out:


Windows IP Configuration


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


Ethernet adapter Local Area Connection:


Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 78-84-3C-E4-F9-DA
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes


Wireless LAN adapter Wireless Network Connection:


Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Atheros AR9285 Wireless Network Adapter
Physical Address. . . . . . . . . : 90-00-4E-D5-67-2D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::d572:9345:407:9d78%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.100(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Saturday, April 07, 2012 10:36:45 PM
Lease Expires . . . . . . . . . . : Sunday, April 08, 2012 10:36:45 PM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 244318286
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-96-A1-F4-78-84-3C-E4-F9-DA


DNS Servers . . . . . . . . . . . : 124.106.5.2
124.106.6.2
NetBIOS over Tcpip. . . . . . . . : Enabled


Tunnel adapter isatap.{892743EA-C1C9-4DED-9706-51469157C58B}:


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.{CED935FE-D553-4E90-8133-829D68E47A19}:


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:


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
IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e76:2012:3edc:8f33:bfe(Prefe
rred)
Link-local IPv6 Address . . . . . : fe80::2012:3edc:8f33:bfe%14(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled