Here's my info:

- home hardwired network using Linksys BEFW11S4 router
- the new machine is running Vista
- 3 other machines are running XP

- the new machine has the following NICs:
Intel(R) PRO/100 VE Network Connection (on MB)
Linksys LNE100TX(v5) Fast Ethernet Adapter (in PCI slot)

Here's the output from an ipconfig on one of the working XP machines when connected to the router:

Windows IP Configuration

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

Ethernet adapter Network Bridge:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : MAC Bridge Miniport
Physical Address. . . . . . . . . : 02-05-9A-3C-78-00
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.23
Subnet Mask . . . . . . . . . . . : 255.255.255.192
Default Gateway . . . . . . . . . : 192.168.1.7
DHCP Server . . . . . . . . . . . : 192.168.1.7
DNS Servers . . . . . . . . . . . : 192.168.48.1
207.179.130.3
Lease Obtained. . . . . . . . . . : Saturday, December 15, 2007 5:37:58
PM
Lease Expires . . . . . . . . . . : Sunday, December 16, 2007 5:37:58 PM

Here's the ipconfig output from the new machine when connected to the router:

Windows IP Configuration

Host Name . . . . . . . . . . . . : Home-PC1
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Linksys LNE100TX(v5) Fast Ethernet Adapte
r
Physical Address. . . . . . . . . : 00-04-5A-76-BC-9F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network Connection
Physical Address. . . . . . . . . : 00-19-D1-1D-BC-34
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{ED409B91-7F44-4E3B-B658-9394F1682
696}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 7:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{AEA1E7AD-840A-498D-909F-5CDEE63B1
4B0}
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. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

---------------------------------------------------------------------

I bought this new machine to replace an older machine on the home network. The old machine was working fine with no problems connecting to the router. Taking the cable that was plugged into the old machine and plugging it into the new machine produced no connection. If I take the same cable from the router end and plug it directly into the modem, I get a connection with the new machine.

Obviously based on the ipconfig from the new machine that I pasted above the new machine is not even detecting an active cable when it is connected to the router. When the new machine is connected to the router there are no lights that show up next to the LAN port. When it is connected directly to the modem the lights show a connection and activity.

I installed the Linksys NIC while trying to debug this problem. The same thing as described above happens whether I use the NIC built into the MB or the Linksys NIC.

Is this an OS problem or a hardware problem? The lights next to the LAN port duplicate what I decribe above even when the machine is off, but I don't know enough about NICs to understand if I can eliminate the OS and OS settings as the problem.

Thanks in advance for your help.