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  1. #1
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    Usb host to host communication failure on WC7655

    We have a number of machines here all having the same problem: Usb host to host communication failure. Can anyone out there advise what could be done to resolve this issue. Thanks in advance
    Dgtal

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    Field Supervisor 500+ Posts knightfall's Avatar
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    Re: Usb host to host communication failure on WC7655

    Quote Originally Posted by adeyemi View Post
    We have a number of machines here all having the same problem: Usb host to host communication failure. Can anyone out there advise what could be done to resolve this issue. Thanks in advance
    it could be the firewire, the firewire interface cards on either end, the system software or the hdd.
    try swopping with a good firewire if that doesn't work the the system software then hdd. good luck.
    Get your facts first, and then you can distort them as much as you please.

  3. #3
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    Re: Usb host to host communication failure on WC7655

    It can also be controller power supply, machine memory, or software module. Connect the PWS to it and watch it boot it withe the Altboot tool and see which platform is failing to load. There should be 4 platforms loaded when it has fully booted up.

  4. #4
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    Re: Usb host to host communication failure on WC7655

    There is patch for host to host problem.

    There are 2 patches, one for Lexington and other for Patriot machines.

  5. #5
    Senior Tech 250+ Posts InterfaceP's Avatar
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    Re: Usb host to host communication failure on WC7655

    Host to host USB is a communication problem from the USB in the back of the UI (monitor) and the ESS (box on the back). Make sure they are properly connected. The USB should be connected to the bottom right port on the ESS.

    Otherwise a upgrade of SW may be necessary. A PWS will be needed.

    Good Luck

  6. #6
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    Re: Usb host to host communication failure on WC7655

    Quote Originally Posted by xcopytech View Post
    There is patch for host to host problem.

    There are 2 patches, one for Lexington and other for Patriot machines.
    These patches, how can i get them please. Could you kindly facilitate my getting them. Thanks a million.
    Dgtal

  7. #7
    Service Manager 1,000+ Posts
    Usb host to host communication failure on WC7655

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    Re: Usb host to host communication failure on WC7655

    What are the machines the software versions ?

  8. #8
    Field Supervisor 500+ Posts Exok's Avatar
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    Re: Usb host to host communication failure on WC7655

    I spoke to a tech friend who recently had this same problem. On his machine, it turned out to be caused by a bad controller cooling fan. Check to make sure your fans are working properly.

  9. #9
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    Re: Usb host to host communication failure on WC7655

    Ok i will thanks for the effort.
    Dgtal

  10. #10
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    Re: Usb host to host communication failure on WC7655

    Looks like you have plenty of help on this one, and I don't want to step on anyone's feet but..

    Curious to know why would you not install the latest SW version instead of worrying about patches?

    The fact that you have multiple units that are doing the same thing raises the question about the proper installation.

    I keep around 20-30 WC76XX in my inventory. Rarely do I see a USB to USB comm problem that's hardware related. That is

    usually reserved for the Firewire connection. Check the proper installation and load the latest version of SW.

    Do you have the USB connected to the back of the monitor?

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