Question about IBM ThinkPad T43 Notebook

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Intermittent loss of internet connection

I have a T43 TP 2668-C5U and it was working fine. Then one day all of a sudden I noticed that my internet connection goes out periodically. It happens when I'll be using the computer and then go away for a few minutes or hours and then come back to the computer. I had the modem checked as well as bought a new ethernet cord in case those were the causes and that did fix the problem. Another thing is that when this happens, the connect can be restored in any number of ways including, restarting the computer, restrating the modem, going to the network connection in control panel and "repairing connection," and sometimes just unplugging and replugging the ethernet cord from the computer. What is going on and how can I fix this? Is there some kind of diagnostic program I can run to determine the exact nature of the problem? Thanks!

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  • bjs77 Apr 05, 2008

    thanks TampaNative. It's a good thought, but the thing is, it didn't used to be like that, so that's why I'm wondering what's up. I'm hoping there isn't something wrong with my network adapter. Is there some kind of diagnostic I could run to see if that was an issue? thanks again!



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You may want to check how often the modem renews license.
I had a problem with my modem but when I added a router or hub and set up my computers with a static addresses I no longer had that problem(I had to add a router because my ISP would not let me alter the configuration on my modem)

My nextel modem renews every hour.

Posted on Apr 05, 2008


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It sounds to me like an inactivity time out, like dial up ISPs do. Check that your ISP (internet service provider) doesn't require activity within a period of time before severing your connection.
Just a thought, and Good luck.

Posted on Apr 05, 2008

  • Frank  Fernandez
    Frank Fernandez Apr 07, 2008

    You're Welcome.
    All or most of the corrective methods that you mention in your first post lead me to think it may be your ISP resetting your IP (as it's surely dynamic and not static unless you're paying for a Static IP?) so you are having to re acquire a new network address more frequently than you're used to. You should be able to prove or disprove this by clicking Start > Run > typing "ipconfig" > and clicking "OK" , in the dialog box that appears your IP will be displayed and after your next event and reconnection check again to see if it's changed?



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