Help with Lost DSL connection on network

[Guest]

I have two computers (both WinXPhome) on a home network going through a
D-Link Router and SBC - DSL connection. Last night I was on the primary
computer and it connected to the internet just fine. Today when I turned it
on, I got a message saying "Local Area Connection - A network cable is
unplugged". I check the cable connections and they were fine. I replaced
the cable with one I know is good and still the same problem. Network
Connections window tell me that a Network cable is unplugged from "Local Area
Connection". When I select Properties on my Local Area Connects, it lists a
SiS 900 Based PCI Fast Ethernet Adapter (which is part of the motherboard and
not an add on card) and says This device is working properly.
I tried my second computer and it can connect to the internet fine. I tried
reversing the cables on the router (put computer #1 cable into the router
plug for computer #2 and computer #2 cable into the router plug for #1.
Computer #1 still says there is a network cable unplugged and computer #2 can
connect to the internet.
This tells me there is no problem with the router.

So here are my questions:

1. If the router is OK and the cables are ok, it would seem that the
problem must be in my ethernet adapter, but my computer tells me that this
device is working properly.

2. Is there any other way I can check to see if the ethernet adapter is bad.

3. Do you have any other suggestions to fix this problem.

Thanks for your help.

 

[Hans-Georg Michna]

1. If the router is OK and the cables are ok, it would seem that the
problem must be in my ethernet adapter, but my computer tells me that this
device is working properly.

Mack,

it can still be broken. But the cause can also be related to the
network adapter driver. First thing I'd try is to remove the
network adapter in Device Manager, then reboot, let the computer
rediscover the adapter and reinstall the driver. Then check the
connection.

If that doesn't help, perhaps you could borrow a plug-in
Ethernet adapter and test with that. Or you could carry your
computer to the nearest good computer shop and let them test it
a little. They may have the spares and tools handy.

Hans-Georg