Installed Windows and cant access the internet

By Christos
Sep 21, 2008
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  1. JudaZ

    JudaZ TechSpot Enthusiast Posts: 292

    kimsland
    I think it actually is as jobeard pointed out.
    Its quite common for ISP's to lock down the access on the computers MAC adress.
    Specially if you only want your costumers to be able to use one computer and pay more to connect more computers.

    Its easy to test, there are ways to change the MAC on you machine with programs like http://www.codeproject.com/KB/applications/MacIdChanger.aspx
    If you change you MAC, connect to the net, and it works
    you just have to buy a router, set it up with a cloned MAC
    (the mac adress that workes) and your fine.

    Dont forget to reset the mac of you computer back to the original.
  2. kimsland

    kimsland Ex-TechSpotter Posts: 18,353

    Limitted connectivity to the Modem, Not the Internet
    ie you can unplug the Internet wire and with the Network (ethernet) still plugged in, you will get 100% connectivity to the Modem

    I still say it needs manually configured IP settings (check from working computer)
  3. Christos

    Christos Newcomer, in training Topic Starter Posts: 23

    Its all sorted guys!

    When i tried it at my home modem it let me connect and setup an ip for me!
    It was the modem or maybe the ISP that only lets you assign one IP? As i couldnt connect it on the one modem i was running the good pc and once i went home it was all sorted!

    Thanks for all the help

    Christos
  4. kimsland

    kimsland Ex-TechSpotter Posts: 18,353

    Damn, you guys were right!

    Actually we don't get any "lock down" here from ISP's (that I'm aware of anyway)
    No doubt that'll be next, then how will I service computers on my account?
    Pay Pay Pay.
  5. jobeard

    jobeard TS Ambassador Posts: 13,270   +280

    For each ISP Account, you get ONE Dhcp assigned IP address
    (or one static address if that's what you purchased).

    This is why we need routers if we have more than one system at home :)
    The NAT feature maps multiple LAN addresses onto the public ISP controlled IP address.

    A switch or hub will NOT provide NAT and are only useful if connected to a router:
    Code:
     modem ---router --- switch 
    With this physical wiring, systems can then be attached to BOTH the router and the switch while only 'renting' on ISP connection.

    By the way: Hardware provisioning is frequently used by the ISP.
    Most home router venders understand this and is why the often provide a
    masquerading capability.

    In addition, the user can also exercise draconian control over connections by
    using the MAC Only list in many routers.
  6. LookinAround

    LookinAround TechSpot Chancellor Posts: 8,357   +167

    I can offer a post script (if it might pertain to a situation in the future)

    Certainly follow the advise and get a router... and use MAC Cloning. Always helps to give you the flexibiliyt

    BUT if you ever happen to be stuck in a hardware provisioning situation so you can't connect to your ISP:
    1. Disconnect whatever is your first device to your ISP
      • If a power switch, turn it off
      • Remove power cord next (whether has a switch or not)
      • Remove any cables
    2. Wait 15 minutes
    3. REcable, insert power plug, turn power on
      (for good measure you might want to power up, cycle each other device in line too)
    Seems in most cases the reset on that first device to your ISP (and wait the 15 minutes) will cause them to reset. and... btw... spent time (within the last 6 months) with someone on TechSpot who was at wit's end as couldn;t connect to Virgin media. He performed this step and he was in bliss to have his internet back.
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