Network Cable is Unplugged

Posted on 2003-03-27
Medium Priority
Last Modified: 2013-11-09
I have a Windows XP machine with two network cards installed. One network card goes into the cable modem the other network card is running out to my laptop which is a ibm thinkpad with a 3com pcmcia card installed via cross over cable. I have installed the latest drivers for both network cards, bought a crossover cable, checked the pinning of it, decided to make my own cable, made it and tried it but still the same problem. I have no link lights from either network card on the desktop or the laptop. I have tried turning off auto-nego. on both cards and tried them at all levels (10-half 10-full. etc without any luck. I have completely removed both cards in safe moved on both machines and reinstalled. I have also set the tcp ip on the desktop card to the ip of and the laptop to and both ping localhost. I plugged the cable modem in the second network card on the desktop and it worked, and it also worked on the laptop. PLEASE HELP!
Question by:arciles

Expert Comment

ID: 8222132
What's the objective here?  Are you trying to do ethernet without a hub?  While it can be done, you're better off going to the local computer store and buying a $40 hub or decent switch and save yourself time and aggrivation.  

If you really want to get fancy, get a 4 port broadband router.  Plug the cable modem into the wan port of the router, and plug the other two computers into the router as well.  That's it, setup IP addressing and you're done.

Expert Comment

ID: 8222205
Dumb question,  Have you tested both network cards on connections to the cable modem that you know is good?  Had to replace a network card in a system the other day for something similar.

Accepted Solution

Count_Onnet earned 152 total points
ID: 8222210
No link lights on either machine when they're hooked up to each other, but link lights when they're connected to the modem. It sounds for all the world like it's not really a crossover cable.  The pinout should be (from left to right when looking at the bottom of the plug):

White/orange, Orange, White/green, Blue, White/blue, Green, White/brown, Brown.

On the other end, the orange and green will be reversed, and the white/orange and white/green will be reversed.

White/green, Green, White/orange, Blue, White/blue, Orange, White/brown, Brown.

A regular Cat-5 will have the same pinout on each end.  (It should be one of the pinouts described above.  Only pins 1,2,3, and 6 are used for carrying data, so the blues and browns are pretty much left out of the story.)

If I'm wrong, (stranger things have happened), but the two computers communicate fine with the modem individually, consider using a router.  You can use straight Cat-5 cables, which seem to work fine for you, and you eliminate other potential problems with internet connection sharing.

Good luck!
SMB Security Just Got a Layer Stronger

WatchGuard acquires Percipient Networks to extend protection to the DNS layer, further increasing the value of Total Security Suite.  Learn more about what this means for you and how you can improve your security with WatchGuard today!


Assisted Solution

MCSE-2002 earned 148 total points
ID: 8228196
I bet your crossover cable is goofed. It seems like the only explanation.

I have made plenty of "expensive rope" while trying to make crossover cables.

try snipping both ends, and redoing them.

Good Luck!

Standard side

1. white orange
2. orange
3. white green
4. blue
5. white blue
6. green
7. white brown
8. brown

wacky, zany side

1. white green
2. green
3. white orange
4. white blue
5. blue
6. orange
7. white brown
8. brown

make sure when you put the caps on, the the nipple faces away from you,(the nipple is the little retaining clip)  and that wire 1 is on the left side.

Good luck!

Expert Comment

ID: 8232677
I'm curious about where we are on this one...is it a crossover cable?  Or are we looking for another answer?

Expert Comment

ID: 9152839
This old question needs to be finalized -- accept an answer, split points, or get a refund.  For information on your options, please click here-> http:/help/closing.jsp#1 
Post your closing recommendations!  No comment means you don't care.

Expert Comment

ID: 10088704
No comment has been added lately, so it's time to clean up this TA.
I will leave the following recommendation for this question in the Cleanup topic area:

Split: Count_Onnet {http:#8222210} & MCSE-2002 {http:#8228196}

Please leave any comments here within the next seven days.

Julian Crawford
EE Cleanup Volunteer

Featured Post

Evaluating UTMs? Here's what you need to know!

Evaluating a UTM appliance and vendor can prove to be an overwhelming exercise.  How can you make sure that you're getting the security that your organization needs without breaking the bank? Check out our UTM Buyer's Guide for more information on what you should be looking for!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Make the most of your online learning experience.
LinkedIn blogging is great for networking, building up an audience, and expanding your influence as well. However, if you want to achieve these results, you need to work really hard to make your post worth liking and sharing. Here are 4 tips that ca…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…

593 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question