DNS server is not responding.

I have tried many fixes found here and around the web and I am coming up short. Could anyone help me out?

Issues:
After about an 5min-1hour, my internet browser stops being able to load webpages. Restarting the computer allows me to browse for a few minutes.
I am able to torrent/play online games with no issue beyond the 1 hour limit.
My computer is the only one having issues, 3 other computers on the home network and multiple gaming systems are unaffected by the problem.

System Specs:
Running a Windows 7 system.
Wired Cable Zoom Modem/Router.
Service is through Comcast.

Attempts to fix:
Ran Malwarebytes and Alvira multiple times - all threats removed
Reset the modem/router - no change
netsh winsock reset - no change
ipconfig/flushdns - no change
Entered the router and went into DHCP license renewal to 9999 min - no change
Went into TCP/IPv4 protocol and manually set DNS to 208.67.222.222 and secondary to 208.67.220.220 - no change

C:\Users\John>ipconfig/all

Windows IP Configuration

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

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 90-E6-BA-71-66-35
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::a5e4:bec0:60bb:3fd9%10(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.12(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Thursday, August 16, 2012 6:44:37 PM
Lease Expires . . . . . . . . . . : Thursday, August 16, 2012 9:31:16 PM
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 244377274
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-BF-F6-B8-90-E6-BA-71-66-35

DNS Servers . . . . . . . . . . . : 75.75.76.76
75.75.75.75
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter VirtualBox Host-Only Network:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : VirtualBox Host-Only Ethernet Adapter
Physical Address. . . . . . . . . : 08-00-27-00-38-05
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::79c2:8542:c820:a162%17(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.56.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 403177511
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-BF-F6-B8-90-E6-BA-71-66-35

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{73743D79-159E-4FD9-A21F-4B5B25776D49}:

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 Local Area Connection* 9:

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

Tunnel adapter isatap.{C2DA5771-3EA0-4EE9-806E-6A607D0974DC}:

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