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Thread: DHCP problem over suddenly

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    Default DHCP problem over suddenly

    My friend asked me to have a look at this laptop which over suddenly lost it's wifi internet connection.
    His laptop was working fine with IP assigned by DHCP (Netgear Bigpond cable modem router). Two days ago the internet stopped working on his laptop.
    Obviously I asked him what did he do before it stopped. He just connected his new Ipad via DHCP and that was it.
    This is what I found:
    1. He has four other devices (2 laptops, Boxee and Ipad) connecting fine via DHCP using wifi.
    2. I checked the router DHCP pool and it's configured for all IPs starting from 2 - 254.
    3. I restored system to the earlier day to no avail - stil limitted connection.
    4. Changed DHCP pool to 100 - 200
    5. Set his laptop to Static IP and entered Bigpond DNS servers - that fixed the connection to the internet problem.

    So even though I got him running, I couldn't achieve the result using DHCP and this bothers me.
    His laptop is Toshiba (two years old) running Vista.
    Could it be hardware problem with wireless adapter or software corrupted? What do you think?



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    was he using Unotelly DNS or another VPN/DNS by any chance ?
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    Quote Originally Posted by OSIRUS View Post
    was he using Unotelly DNS or another VPN/DNS by any chance ?
    Nothing special. All his PCs were connecting via Bigpond cable/router with Bigpond default DNSs.
    What was strange the problem laptop while on DHCP was assigned this 169.xxx.xxx.xxx IP even though WPA2 key was correct.

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    The 169.x.x.x address is the fall back auto-assign when it cannot get an address from a DHCP server.
    I guess you tried the repair/diagnose function on the connection.
    Also under DOS...ipconfig /release ...ipconfig /flushdns....ipconfig /renew.

    And check that the dhcp client (cannot remember the atual service name..been running Linux for too long...dclient?) is started and set to automatic start.

    Failing all of that remove and re-install the adapter.
    I'd rather have a bottle in front of me than a frontal lobotomy...

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    Thanks autotuner for the idea. I tried everything except checking the service startup settings. Will check it when I see my friend again.

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    Is it a limit tel$tra place on the system were as only a limited number of MAC addresses can NAT through the router????
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    Quote Originally Posted by porkop View Post
    Is it a limit tel$tra place on the system were as only a limited number of MAC addresses can NAT through the router????
    I never heard about such a limitation by Bigpond. Please give me more information. If such limitation exists, would it still allow static IP device to NAT through?

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