i need to add a computer to my router

i have a router and have a laptop hooked up to the internet as well as my desktop....but i have a 2nd desktop computer that i cant seem to get to connect to the internet with when i hook it to the router...i dont know much about this kinda stuff, can i get a little help please?
thanks in advance

 

Microsoft Windows [Version 6.0.6000]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\Owner>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. . . . . . : hosts.bc1.bresnan.net

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : hosts.bc1.bresnan.net
Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network Connection
Physical Address. . . . . . . . . : 00-19-D1-2A-CA-B1
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::6d5b:dbfd:502d:5d3f%8(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.100(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Thursday, June 28, 2007 2:41:42 AM
Lease Expires . . . . . . . . . . : Sunday, July 08, 2007 2:41:56 PM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 201333201
DNS Servers . . . . . . . . . . . : 69.145.248.50
69.145.232.4
69.145.248.4
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. . . . . . . . . . . : 2001:0:4136:e37c:8d1:3d04:3f57:fe9b(Prefe
rred)
Link-local IPv6 Address . . . . . : fe80::8d1:3d04:3f57:fe9b%9(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Local Area Connection* 7:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.hosts.bc1.bresnan.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 9:

Connection-specific DNS Suffix . : hosts.bc1.bresnan.net
Description . . . . . . . . . . . : isatap.hosts.bc1.bresnan.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::5efe:192.168.1.100%11(Preferred)
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 69.145.248.50
69.145.232.4
69.145.248.4
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Users\Owner>




this is what came up when i followed your directions

 

the problem with the other desktop pc is that when i unhook the cord from the laptop and hook it in to the "non working pc" i cant go onto the internet with that computer

 

and i dont know how i would get the info from the "non working pc" to this one so i could post it

 

im sorry, can you say that in simpler terms please, like what exactly do i need to do?

 

okay none of those options were available to me...amazingly...so i decided to write it all down and retype it in this message and here is what came up on the "non working pc"


Microsoft Windows 2000[Version 5.00.2195]
(C)Copyright 1985-2000 Microsoft Corp.
C:\Documents and Settings\linda.BSEDA>IPCONFIG /ALL

Windows 2000 IP Configuration
Host name......:LINDAPC
Primary DNS Suffix.....:BSEDA.local
Node Type......:Hybrid
IP Routing Enabled......:NO
WINS Proxy Enabled......:NO

Ethernet adapter Local Area Connection:
Media State......:Cable Disconnected
Description......:3Com3C920Integrated Fast

Controller(3C905C-TX Compatible)
Physical Address......:00-B0-D0-81-46-3C

C:\Documents and Settings\linda.BSEDA>0-81-46-3C
'0-81-46-3C' is not recognized as an internal or external command, operable program or batch file.



thats what i got....sorry it took me so long to reply with those specs, like i said i had to write it down and retype it on this pc and such

 

Is the Ethernet Port on the problem PC built in? Has the PC ever been rebuilt and drivers need reinstalling? Is the Local Area Connection disabled? (control panel>network connections - if it is right click and enable)

Also, try cabling up the PC simultaneously to the laptop. If you only have one cable, shut down the laptop, disconnect the cable and wire in the PC to a separate port, then boot the PC.