Someone Smart With Computers Please Help

I've had this problem for so long and it's really starting to piss me off. My Xbox won't work because it says it's not being assigned an IP Address from my router. It says to enable DHCP, which I have done many times, by doing whatever they tell me. I even tried doing it through command lines by typing "netsh nap client set enforcement ID = 79617 ADMIN = "ENABLE"" That's what I've been told to do elsewhere online and by my ISP. But then afterwards, my Xbox still won't connect and when I open a command prompt and type "ipconfig/all", the following comes up (It says DHCP Enabled....: NO): Microsoft Windows [Version 6.1.7600] Copyright (c) 2009 Microsoft Corporation. All rights reserved. C:\Windows\system32>ipconfig/all Windows IP Configuration Host Name . . . . . . . . . . . . : Owner-PC Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : hsd1.il.comcast.net. Wireless LAN adapter Wireless Network Connection 2: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter Physical Address. . . . . . . . . : 0A-60-76-33-31-FE DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Wireless LAN adapter Wireless Network Connection: Connection-specific DNS Suffix . : hsd1.il.comcast.net. Description . . . . . . . . . . . : Atheros AR9285 802.11b/g/n WiFi Adapter Physical Address. . . . . . . . . : 0C-60-76-33-31-FE DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::41e0:5a61:2c8b:c035%13(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.103(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Thursday, August 25, 2011 11:41:59 AM Lease Expires . . . . . . . . . . : Friday, August 26, 2011 11:41:58 AM Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DHCPv6 IAID . . . . . . . . . . . : 319578230 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-66-D5-71-00-1F-16-ED-0D-29 DNS Servers . . . . . . . . . . . : 68.87.72.134 68.87.77.134 NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter Local Area Connection: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Realtek PCIe FE Family Controller Physical Address. . . . . . . . . : 00-1F-16-ED-0D-29 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.hsd1.il.comcast.net.: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : hsd1.il.comcast.net. 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* 11: 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. . . . . . . . . . . : 2001:0:4137:9e76:14d1:25ab:e7f3:46ba(Pref erred) Link-local IPv6 Address . . . . . : fe80::14d1:25ab:e7f3:46ba%15(Preferred) Default Gateway . . . . . . . . . : :: NetBIOS over Tcpip. . . . . . . . : Disabled C:\Windows\system32> PLEASE HELP