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Windows 7 Thread, Computer no longer likes 100MBs full-duplex! in Technical; Bought 28 desktops over hols (Fujitsu Win7 64 pro with realtek PCIe GBE on-board) and one of them just started ...
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    SimpleSi's Avatar
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    Computer no longer likes 100MBs full-duplex!

    Bought 28 desktops over hols (Fujitsu Win7 64 pro with realtek PCIe GBE on-board) and one of them just started disconecting and connecting 1/sec

    I shifted it from admin to curric network - same behaviour
    Booted it off my linux Redobackup CD and it found the network fine but back in windows I've had to tell it to run at 10Mbs to get it to ackle!

    I see some chatter on Google but not sure if is some sort of gloabl issue of not - anyone else had this?

    Or got a better "cure"

    Simon

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    FN-GM's Avatar
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    Reinstall drivers? If not i would just reimage will be quicker than messing about getting it working

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    SimpleSi's Avatar
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    Unfortunately it is the one machine I setup for the admin network with sims etc on it so its unique

    Once I got it working at 10mbs I told it do do a driver update which it did but still same issue

    Simon

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    FN-GM's Avatar
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    Well sims is a 2 min job, surely?

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    gshaw's Avatar
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    Realtek NICs are a pain, I'd say chuck an Intel Pro\1000 PCI card in there and be done with it

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    SimpleSi's Avatar
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    Realtek NICs are a pain
    I don't think a brand new computer should be unable to handle 100Mbs even if its a pain
    Simon

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    Michael's Avatar
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    What switch is it connected to? And I presume you've tried a different patch lead and port on the wall?

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    m25man's Avatar
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    Is the port PoE enabled? If so disable the PoE..

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    oxide54's Avatar
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    not completely off topic, but @m25man you're signature reminded of a post a whille back I think you made about a fluke tester, what was the model.

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    m25man's Avatar
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    Quote Originally Posted by oxide54 View Post
    not completely off topic, but @m25man you're signature reminded of a post a whille back I think you made about a fluke tester, what was the model.
    Which one? I have them all... The etherscope is still my favourite, but this has been replaced lately with the LinkRunner AT Ethernet Connectivity Tester | LinkRunner AT Network Auto-Tester | Fluke Networks as its a really quick frontline tool but for wireless the Aircheck is proving invaluable.

    Ive drawn the line at the Optiview, £20k for a field tester is nuts!

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    SimpleSi's Avatar
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    Just in case people missed the beginning
    Bought 28 desktops over hols (Fujitsu Win7 64 pro with realtek PCIe GBE on-board) and one of them just started disconecting and connecting 1/sec

    I shifted it from admin to curric network - same behaviour
    Simon

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    oxide54's Avatar
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    si

    you really should have all your machines re-imageable with virtuallly none to none interaction including this one;

    in all honesty you've got a few possible causes here.

    1. software problem / drivers
    2. hardware problem i,e, dodgy nic/mb
    3. dodgy cabling

    you know it can work because the other machines work, given this machine is unique - software/drivers is a possiblity,

    have you swapped out all the cabling

    have you tried the hard disk in one of the other machines which would tell you whether it was software / drivers problem.

    tbh its not rocked science,

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    SYNACK's Avatar
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    Smells like dodgy cabling to me, have had similar were the cable is just shocking, older cards sometimes worked better as they were designed to run with rubbish cable wired badly rather than proper stuff. Grab a basic tester and make sure it is wired properly, borrow a decent one and see if the cable itself is at fault. Try re-terminating the ends, that may help. They were probably wired be an electrician, hence are probably miswired and untwisted centimetres more than it needs to be.

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    twin--turbo's Avatar
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    Quote Originally Posted by gshaw View Post
    Realtek NICs are a pain, I'd say chuck an Intel Pro\1000 PCI card in there and be done with it
    Considering realteks massive massive volume they rarely give real issues.

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    SYNACK's Avatar
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    Quote Originally Posted by twin--turbo View Post
    Considering realteks massive massive volume they rarely give real issues.
    Their old ones did, some were almost as bad as the SiS 900 series. The drivers also have no wait state in them to solve these name resolution problems, they just report themselves as ready which is why they can sometimes suffer issues like this. If the driver includes a WaitForLink function it won't report that it is ready to Windows until it actually is preventing such problems.

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