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Failed to open COM 1 (Using Serial to USB connector)

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  1. Offline

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    Halo

    I bought a Serial to USB connector for a device that i want to connect with my laptop since my laptop does not have those Serial port that usually came with Desktops. So when i insert the cable and installed the driver, the program that i want the device to connect it with says :"Failed to open COM 1".

    Well i don't know what to do now. The driver is installed, the LED indicator that came with the device is blinking (for a while) but the program says otherwise.


    Help...
  2. Offline

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    Try the other USB ports?
  3. Offline

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    ^^
    i don't think thats the problem. the usb port is fine.

    owh btw, i'm running Vista.
  4. Online

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    Are you sure COM1 relates to that particular USB port?
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    (Original post by Mad Vlad)
    Are you sure COM1 relates to that particular USB port?

    Ok. Just now i checked under Device Manager -> Ports (COM & LPT) and it states there: Prolific USB-to-Serial COMM Port (COM27)

    So..do i need to change anything?
  6. Online

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    (Original post by newman24x)
    Ok. Just now i checked under Device Manager -> Ports (COM & LPT) and it states there: Prolific USB-to-Serial COMM Port (COM27)

    So..do i need to change anything?
    If it lists a COM Port 27, try that :p:
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    (Original post by Mad Vlad)
    If it lists a COM Port 27, try that :p:
    how lol
  8. Online

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    Open up hyperterminal and in the "Connect Using" drow down menu - see if it says COM27
  9. Offline

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    I think i figured it out already.
    Go to Device Property -> Your Serial to USB name, double clicking it, - Port Settings -> Advanced ->Select you port.

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