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I had cable internet installed recently, and received an Ethernet card to put in my computer, which I did. I hooked up the cable modem and connected it to the ethernet card via ethernet cable, installed the necessary drivers, and I got the message "A network cable is unplugged," even though everything is hooked up.
It is a Motorola Surfboard sb4100 modem, anyway, help is appreciated.
Biostar P4m800-m4
Pentium 4 Prescott @ 3GHz
1GB Corsair PC3200 RAM
Geforce 6200 AGP
2 80Gb Harddrives
XP Home SP2

From start>run type in "cmd" without the quotes, press enter key and at the command prompt, type in "ipconfig /all" without quotes and see if your getting an ip address. post the results if you dont understand them.
Silence is golden but duct tape is silver

Well the strange part is, the USB port works, but the ethernet port does not.
I did get an ip address and everything, and I can get internet with USB port.
Biostar P4m800-m4
Pentium 4 Prescott @ 3GHz
1GB Corsair PC3200 RAM
Geforce 6200 AGP
2 80Gb Harddrives
XP Home SP2

Then change Model/Manufacturer: irrelevant to something more specific. Who knows - with this missing info we may be able to discern where the problem lies.
i_Xp/VistaUser

It is irrelevant because my computer manufacturer has nothing to do with the ethernet port not working. No manufacturer made it anyway, its parts I put together on the computer. I said I have windows xp sp3, that should be all I needed to list in that section....
If you are talking about the model/manufacturer of the ethernet card, then how do I check to see what that is?
Biostar P4m800-m4
Pentium 4 Prescott @ 3GHz
1GB Corsair PC3200 RAM
Geforce 6200 AGP
2 80Gb Harddrives
XP Home SP2

The cable may be incorrect, defective. You have not tested to prove anything here. Use a known good crossover cable and a second computer (laptop would do) and try it. Could make a simple loopback to test also. One connector and a few wires.
"Best Practices", Event viewer, host file, perfmon, are in my top 10

"It is irrelevant because my computer manufacturer has nothing to do with the ethernet port not working. No manufacturer made it anyway, its parts I put together on the computer. I said I have windows xp sp3, that should be all I needed to list in that section...." No.. What you SHOULD list is the information requested. If you have a problem with that, you should PM a moderator. :)
Life's more painless for the brainless.

Go to device manager and check the manufacturer. While there, make sure there are no conflicts indicated and try updating the drivers for the NIC.

"No.. What you SHOULD list is the information requested. If you have a problem with that, you should PM a moderator. :)"
Look I don't want a flame war here, I asked a question that I would like positive input to, not irrelevant posts asking for irrelevant information. Tell me how "P4 3.0Ghz Prescott/1gb ram, and make/manufacturer" is going to solve my problem. Plus, it is below in my sig, so posting it again would be pointless I don't understand why this is even an issue. Also, I don't believe it says anywhere that one HAS to fill in the listed information or you are banned...
Anyway, I tried using a different ethernet cable and the same message came up. The card is a smc1255tx-1 ez-card 10/100mps Fast Ethernet pci Network Card.
It wouldn't be that the driver of the modem with the usb connection is interfering with the recognition of the network cable could it?
Biostar P4m800-m4
Pentium 4 Prescott @ 3GHz
1GB Corsair PC3200 RAM
Geforce 6200 AGP
2 80Gb Harddrives
XP Home SP2

Do you have both cables plugged in? If so, unplug the USB or just use that one if it works. You only need one physical connection.
Life's more painless for the brainless.

Is the ethernet connection not faster?
Biostar P4m800-m4
Pentium 4 Prescott @ 3GHz
1GB Corsair PC3200 RAM
Geforce 6200 AGP
2 80Gb Harddrives
XP Home SP2

The processor and RAM has nothing to do with the OP's problem. If you keep insisting that it's required, I'm going to PM Justin, end of discussion.
"Is the ethernet connection not faster?"
Not necessarily. USB has a rated throughput of about 480 mbps. Most NICs today can go around 1000 mbps (some only 100 mbps). The fastest speed of the internet today is approx. between 6 and 11 mbps, so therefore you're way under your NIC's maximum throughput.
Most modern motherboards have onboard ethernet. Is there an ethernet port on the back of the PC besides the card you installed?

Did you ping the loop-back address?
127.0.0.1
If you ping this and get no response / timed out, your card (card ethernet connection?) is cactus, or the slot it is placed in on the motherboard is faulty or it might need reseating.
If you get a response you can look at the cabling... then look at the switch... then look at the router.
As a process of elimination this is where I would start.

I will try those things tomorrow rayburn, but
I just had to get this straightened out, I know that those are not required, just some of the people above me are insisting I should put in all of the required fields, and I was saying that that stuff is NOT required, it is pointless to ask for it. Cpu/ram and model/manufacturer are irrelevant, and some people didn't believe that.
btk1w1, how would I do that?
Biostar P4m800-m4
Pentium 4 Prescott @ 3GHz
1GB Corsair PC3200 RAM
Geforce 6200 AGP
2 80Gb Harddrives
XP Home SP2

Yeah I might have sounded harsh but I just wanted to put a stop to it because it's not worth bickering over.

Click "start" > "Run"
Type in:
cmd
then hit enter to bring up a black box (command window)
Then type in:
ping 127.0.0.1
ping<space>127.0.0.1Hit enter.
If you get 4 x "reply" with times your NIC card is working.
If you don't get a reply, you can try the card in a different slot on your motherboard, or reseating it. Reseating is basically removing it then putting it back in and checking it is firmly in place.

Post the results of the ipconfig /all when just the ethernet is plugged in.
Silence is golden but duct tape is silver

Yeah it worked with just the ethernet plugged in and got "Reply from 127.0.0.1: bytes=32 time<1ms TTL=64" 4x and "ping statistics: 4 packets sent, 4 packets received, 0 lost"
Approximate round trip was all 0msBiostar P4m800-m4
Pentium 4 Prescott @ 3GHz
1GB Corsair PC3200 RAM
Geforce 6200 AGP
2 80Gb Harddrives
XP Home SP2

That indicates your network card is functioning normally.
The problem lies between your pc and router to connect to the internet via an ethernet connection.
Do as SysLock suggests above.
Again open the command window and instead of putting in ping 127.0.0.1, put in:
ipconfig /all
ipconfig<space>/all

Regarding your motherboard, do you mean the P4M80-M4 or P4M900-M4 ... there isn't a P4M800-M4 listed on BIOSTAR's website.
The other thing is, the integrated network adapter on the motherboard--whatever model it is--is that not working as well?

"The other thing is, the integrated network adapter on the motherboard--whatever model it is--is that not working as well?"
I was wondering the same thing!

Found the specs P4M80-M4 here and it does have a built on lan. Drivers are here. It would still be nice to know the ipconfig results.
Silence is golden but duct tape is silver

Oh and I did try it, the network adapter on the motherboard as well did not work, which led me to believe there was a software problem. I posted earlier about the ipconfig /all thing, I did get a ip address and everthing, but I cannot copy and paste from there. Anyway, no worries, I'll just use the USB port.
Thanks for everyones help anyway.
Biostar P4m800-m4
Pentium 4 Prescott @ 3GHz
1GB Corsair PC3200 RAM
Geforce 6200 AGP
2 80Gb Harddrives
XP Home SP2

Just because you got an ip doesnt mean it will work. Use redirecting from the command prompt to send the info to a txt file.
Start>run
type in cmd
command prompt type in
ipconfig /all > c:\ip.txtGo to C: drive an open ip.txt in notepad. You'll be able to copy contents from there.
Silence is golden but duct tape is silver

SysLock is absolutely right. Some, if not all NICs are sometimes assigned an IP address anyway even though it's not connected to a network.

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