10 Replies Latest reply: Jul 15, 2009 4:42 PM by Wailo RSS

Ethernet Connection

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I have an IBM ThinkPadR40 With Intel PRO/100 VE Network Connection - but every time I hook up with an ethernet cable - I get "A network Cable is unplugged" It tries to connect - but can never achieve anything more than "Limited Connectivity", and that usually only for a few seconds.

 

I tried getting a new ethernet cable - no change.

 

I have looked for updates: I downloaded the AllNetworkAdapterDrivers_13_5 file from Intel and clicked "autorun.exe,  chose "repair" and re-booted - to no avail. Then I tried "modify" instead of repair - but that didn't work either

 

I have tried to upgrade the drivers from my device manager - but it tells me that I have the latest.

 

Any suggestions?

  • 1. Re: Ethernet Connection
    Wailo Community Member
    Currently Being Moderated

    I have exactly the same problem, I am using Windows XP Home SP3, with Toshiba Satalite notebook A100, and the same network card.

     

    Nor the cable neither the router are defected, as I have tried with other laptop and it works.

     

    Hoping to get some help.

     

    Wailo

  • 2. Re: Ethernet Connection
    MARK HANNA Community Member
    Currently Being Moderated

    I am not sure what is causing the problem. Assuming there is not a physical problem on your system board, here is what I would try if the computer was mine:

     

    1. Intel(R) PROSet has diagnostics in the "Link" tab that can provide information about your cable, link partner, and hardware. Run the diagnostics to see if you get enough information to resolve the problem. Check the User Guide (It's in the root of the AllNetworkAdapterDrivers_13_5 file you downloaded. Click on index.htm) if you want information about running the diagnostics, settings, and troubleshooting tips.
    2. Make sure your speed and duplex settings match between your network connection and the setting on your switch or router. For example, try setting both to auto or try manual speed and duplex settings. Just make sure both ends match.
    3. Power the switch/router or whatever you are connected to off and on. A lot of home or small business routers and switches need this occasionally.
    4. Try plugging into a different port in case one of the ports went bad.
    5. Sometimes a firmware upgrade for the switch or router is available that can fix connectivity or other problems. If one is available, go ahead and upgrade.
    6. Check for BIOS updates to the computer. Update the BIOS if a newer one is available. The BIOS could easily affect built-in network components.
    7. Get the latest Ethernet software/driver download from the computer manufacturer's website. I would try this version instead of a newer version because I know that the version was tested with the system.
    8. Use Windows control panel to completely remove the Intel software including the drivers.
    9. Install the drivers from scratch using the packages you downloaded.

    You could try the newer drivers at this point, but you might end up with the same problem as before. If you don't need the diagnostics and other settings from Intel(R) PROSet and Advanced Network Services, then try unchecking those components when you do the install.

     

    I hope this helps.

  • 3. Re: Ethernet Connection
    kravlin Community Member
    Currently Being Moderated

    I've been having a similar problem, I'm running linux (i'm gonna try it in windows as soon as i have a chance). I run a lenovo X61 and for the last couple months I have been unable to connect with my Intel gigabit Pro ethernet connection. I plug the cable in, the computer sees the device but however, whenever I run dhcpcd (which simply polls for an address and accepts the lease). When I do, it connects like normal, polls for a lease and then disconnects, and repeats this until it times out. As soon as i have a chance, I'm going to reinstall windows, and see if it's a problem with the linux drivers, because i've run several distributions and all have had this problem.

  • 4. Re: Ethernet Connection
    Wailo Community Member
    Currently Being Moderated

    Dear Mark,

     

    Many thanks for your post, I find it very informative! I have gone through all the steps with no luck, except the step number one,

    Intel(R) PROSet has diagnostics in the "Link" tab that can provide
    information about your cable, link partner, and hardware. Run the
    diagnostics to see if you get enough information to resolve the
    problem. Check the User Guide (It's in the root of the
    AllNetworkAdapterDrivers_13_5 file you downloaded. Click on index.htm)
    if you want information about running the diagnostics, settings, and
    troubleshooting tips.

    I only found Intel PROSet/Wireless which control my wireless card only, tried looking for it in my PC with no luck, and a quick google wasn't helpful too   I would appreciate if you could pass more details.

     

    To give you a clearer explanation about the problem

     

    I am using Linksys product WRTP54G

     

    WRTPG.jpg

    and because I want to share internet connection from my PC to feed the router, I have to connect it to the router through the internet socket (blue , first left)

    WRTPG 01.jpg

     

    but, I will never establish a connection with it! while it will establish connection with any of the the ethernet sockets (yellow), only if the NIC speed was set to 10Mbps..


    this is not the case with other laptops I have, they all work fine and flawless with the linksys router, without even the need to adjust the card speed or anything.

     

    So, I am a bit confused here..

     

    Thanks in advance for your kind help!

    Wailo

  • 5. Re: Ethernet Connection
    Community Member
    Currently Being Moderated

    In my 100 base-T home network, I have found that the best performance comes from manually setting the link speed to 100Mb/s half-duplex not full duplex. It appears that the Intel may have swapped these settings in their driver. Relying upon Auto-Negotiate can be troublesome if you have Gigabit hardware and sub-standard network wiring (as I have).

     

    I find that using www.speedtest.net connecting to one of their recommender servers has been the best way to choose the optimum link speed.

  • 6. Re: Ethernet Connection
    MARK HANNA Community Member
    Currently Being Moderated

    PROSet for your wired Ethernet adds tabs to the network connection properties in Windows device manager. I run "devmgmt.msc" as a shortcut to open device manager. An Intel support article, Where is Intel® PROSet and what is it?, gives a little more information.

    As to why you can't get a connection on the Internet port of your Linksys router, I am not sure what is happening here. Perhaps using an Ethernet crossover cable would help. However, with most equipment these days, you don't need a crossover cable. Hopefully, running the diagnostics will give you some help figuring this out.

  • 7. Re: Ethernet Connection
    Wailo Community Member
    Currently Being Moderated

    Hello Mark, sorry for being a bit late, but I started to lose hope with my ethernet card...

     

    I went to the link you kindly posted, downloaded the driver with full package (Intel PROSet) but again... I ended up here

    http://communities.intel.com/thread/2786

  • 8. Re: Ethernet Connection
    Wailo Community Member
    Currently Being Moderated

    ok! a breakthrough!

    Managed to install the new driver with PROset software after unistalling the old driver through the registry (too bad that intel uninstall utilities didn't help).

    Ran the intel diagnostic with cable connected to the yellow hub and blue hub (my wrtp54g linksys router). it showed no problem with the yellow hubs (althoug it will only establish connection if the speed is set to 10Mbps), while ~"cable crossover dismatch"~ message showed with the blue socket. so it is clear that I have to change to the cable with crossover type. will try it and post feedback.

     

    I have question here:

    Perhaps using an Ethernet crossover cable would help. However, with most equipment these days, you don't need a crossover cable. Hopefully, running the diagnostics will give you some help figuring this out.

    My notebook is 2005/2006 model, shouldn't my Ethernet card has the auto switch [Automatic MDI/MDI-X] capability to work with all kind of cables? or it is too old for this technology?

     

    I am learning new thing! thanks people

  • 9. Re: Ethernet Connection
    MARK HANNA Community Member
    Currently Being Moderated

    I am happy you managed to make some progress. As to your question on the crossover cable, the automatic detection feature is not part of the standard when it comes to 10/100 Ethernet. Therefore, you never know if you will need the crossover cable or not. When you plug into normal switch or hub ports, a straight cable works fine as you found out.

  • 10. Re: Ethernet Connection
    Wailo Community Member
    Currently Being Moderated

    OK, I bought a crossover cable, pluged it to my router, and I am very happy that it is working! perfectly! 100Mbps!

     

    I can now use my VOIP with comfort, many thanks to you Mark, my issue is been fully resolved!

     

    Best Regards

    Wailo

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