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  1. #1
    Senior Member Greven's Avatar
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    Default one user completely screws up network

    I've got a really strange problem where one PC doesn't like one particular domain user. When you log in as this user, it completely screws up networking on the PC even in standalone mode - it can't release the DHCP address even after rebooting & DNS doesn't work.

    I put a new network card in it, reinstalled windows & logged into the domain as a different user & everything worked fine, then I logged in as the problem user & everything screwed up again.

    This user works fine on other computers, so it isn't her profile causing the problem.

    Any ideas on what is causing the problem?

  2. #2
    Smiling Down On Youse SurferJoe46's Avatar
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    Default Re: one user completely screws up network

    ignore this...it wasn't correct after I thought it over.


    Warum werden wir so früh alt und klug so spät?

  3. #3
    Superanuitant Poppa John's Avatar
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    Default Re: one user completely screws up network

    Quote Originally Posted by SurferJoe46 View Post
    ignore this...it wasn't correct after I thought it over.
    OK Joe, I will. PJ Toothache
    Deafness.
    When I was younger I heard but didn't listen.
    Now I am older, I listen but cannot hear.

    If it is not broke, don't make it broker by trying to make it better. (This applies specifically to PJ)

  4. #4
    Debiant Myth's Avatar
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    Default Re: one user completely screws up network

    Networking, on what OS? (Linux or Windows)
    Weird chars in the name? Space in the name?
    (morganj): 0 is false and 1 is true, correct?
    (alec_eso): 1, morganj

  5. #5
    Computer Tech
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    Default Re: one user completely screws up network

    Roaming profiles?

  6. #6
    Senior Member Greven's Avatar
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    Default Re: one user completely screws up network

    win2k small business server. Winxp pro clients. no strange characters in the computer name - e followed by 5 numbers same as all the working PCs.

    I think they have roaming profiles.

    Even doing a windows repair hasn't fixed the network. I may have to do another clean install & this time not restore the old data.

  7. #7
    Pedant and proud of it
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    Default Re: one user completely screws up network

    Is the user name the same as the hostname on that computer (user "fred" on fred.mynet.co.nz? It shouldn't cause a problem, but this is a computer system. It's probably default that if you use just the hostname rather than the fully qualified host name it is assumed to be on the local network, so fred@joe expands to fred@joe.mynet.co.nz. So if there's an advanced feature in the software and "fred@fred" expands to "fred.mynet.co.nz@fred.mynet.co.nz" ...

    Anyway, you should be looking at any packets coming from that computer. It's certain to be something "silly" and simple, and obvious when you see the addresses in the packets. Seeing you using tcpdump or [/b]ethereal[/b] on a laptop will really impress people.

    This sort of problem should not require a reload of the OS.

  8. #8
    Network Engineer SolMiester's Avatar
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    Default Re: one user completely screws up network

    Is there a GPO on this user acc?
    HOME-LianLi PC-9F,ASRock P67Pro3, i5 2500k @4Ghz, 8Gb HyperX, ASUS GTX660 OC, Corsair Force 120 SSD, HP zIPS22", HOME SERVER HP ML110G6 HOST-Plex\Ubuntu\8

  9. #9
    Senior Member Greven's Avatar
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    Default Re: one user completely screws up network

    Quote Originally Posted by SolMiester View Post
    Is there a GPO on this user acc?
    I didn't look into that, but wouldn't a gpo affect any computer the user logs onto?

    the strangest thing about this is that the network is still screwed up when you log off & log in as a local user.

  10. #10
    Network Engineer SolMiester's Avatar
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    Default Re: one user completely screws up network

    ...
    HOME-LianLi PC-9F,ASRock P67Pro3, i5 2500k @4Ghz, 8Gb HyperX, ASUS GTX660 OC, Corsair Force 120 SSD, HP zIPS22", HOME SERVER HP ML110G6 HOST-Plex\Ubuntu\8

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