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Laptop disconnects LAN periodically

Discussion in 'Networking' started by Nirit, Feb 20, 2008.

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  1. Nirit

    Nirit Thread Starter

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    I`ve recently got a Dell Inspiron 1525 laptop. I have an ADSL connection at home and an SMC 7004VBR router. Each time I connect the laptop to it, it disconnects every 15-20 minutes or so, disconnecting also the other PC on the same LAN at the same time (there`s always a notification on the PC that says a network cable is unplugged). After a minute everything is back to normal. When I hibernate or switch off the laptop with the ethernet plugged in, the next time I switch it on I have the same problem: both comps are disconnected from the Internet, and it needs some time to connect again. Could it be a hardware problem, or is it rather networking issue?

    I have Windows Vista Basic on the laptop, Marvell Yukon 88E8040 PCI-E Fast Ethernet controller, and I`ve set up a static IP. On the desktop that`s on the same network I have Windows XP Home. Thanks for all your help!
     
  2. TerryNet

    TerryNet Terry Moderator

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    Many will disagree that wireless interference can cause ethernet connected computers to disconnect, but since they both disconnect at the same time, that is my first suspicion. Especially from a 2.4Ghz cordless phone or another network on the same or close channel. Suggest try a different channel, 1 or whatever is the highest number in your region.
     
  3. Nirit

    Nirit Thread Starter

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    What do you mean by a different channel? And the thing is that when I connect my father`s laptop together with the desktop, they both work happily with no interruption... Also, when I search for a wireless network in range, can`t find any, so the problem must be something else :(
     
  4. JohnWill

    JohnWill Retired Moderator

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    Try disabling the wireless capability on the router. If that doesn't change the symptoms, then it's not wireless issues or interference. :)
     
  5. Nirit

    Nirit Thread Starter

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    Tried that, but unfortunately the problem still exists :confused:
     
  6. TerryNet

    TerryNet Terry Moderator

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    For the desktop and your laptop please show ...

    Start, Run, CMD, OK to open a command prompt:
    (For Vista type CMD in the Search box after Start)

    Type the following command:

    IPCONFIG /ALL

    Right click in the command window and choose Select All, then hit Enter.
    Paste the results in a message here.

    If necessary use a text file and removable media to copy the results to a computer with internet access.
     
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