Why can't connect through a USB port?

When you use USB, I can't get my device is displayed in the preview of the device Panel and the iOS overview application does not display the preview image.


If you use Windows, iTunes must be installed on your PC to the USB of the preview to work.  Connectivity USB of Preview is based on the Apple USB driver installed by iTunes. iTunes is installed on Mac by default. To verify that the Apple USB driver works correctly, connect your device to your computer and verify that you can see your device in iTunes.  If you can see your device in iTunes and still can connect using Preview, then try to temporarily disable your firewall software and see if the preview can connect. If disabling your firewall allows Preview to work, go into the settings of your firewall and see if an extract is blocked.

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    Thank you!


    Hello served,

    Thank you for using communities of Apple Support.

    I understand that when you use the USB cable for your iPhone in your car with the audio CarPlay is mediocre. I know how it is important for you to hear your calls clearly. In a situation like this, I recommend the steps described in the following article to help solve the problem.

    Configure CarPlay to use with your iPhone

    Specifically the section to get help:

    Get help

    If CarPlay does not work as you expect, here's what you can check. After each step, try to use CarPlay again.

    1. Make sure that Siri is turned on.
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    3. If possible, connect your iPhone to a different USB port in your car.
    4. Try a different lightning to a USB cable. Make sure that the cable is certified.
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    See you soon

  • HP P1102W does not print and does not open when it is connected through the USB port on the road

    I bought this printer and I set it with a fixed IP address. After a few months, he has simply stopped working. So I decided to connect to the console and I wasn't able to do it either. I printed the test page and the ip address is I, then, tried to plug in the USB cable on my computer and the drive that contains the software, it does not appear. He is a second and then disappears.

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    The 1102W uses what is called USB wireless.  The installation of the printer is the only way to recover the printer on a network in this case.  There is no place to set the IP address without getting a DHCP address first, which is not the case here.

    First, retrieve the default network printer.

    Restore the default wireless settings.
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  • How can you stop safely remove hardware to appear when there is nothing connected to the USB ports?

    Orifginal title: Aggrevation

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    Hi ElginCarelock,

    You can try to restart the computer and check.

    Uninstall all USB device manager entries

    a. Click Start and typedevmgmt.msc and press ENTER.

    b. expand Bus USB controllers.

    Note: You will need to scroll down to find this point.

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  • I use a third party inf file when creating a network connection via my USB port. The USB connection will become inadmissible and also cause the laptop hang up.

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    Hi Paul,.

    ·         Why are you using a USB port to create a network connection instead of using an Ethernet connection?

    You can see the following article on how to set up a network.

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  • My laptop does not recognize that anything that is connected to the USB ports

    Help, please. My laptop does not recognize that anything that is connected to the USB ports.

    Moved from feedback

    Original title: problems with USB ports

    Hi Alba.

    1. who is the operating system installed on the computer?

    2. What is the brand and model of the computer?

    This issue may be caused if one of the following situations arises:

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    I suggest to connect the USB device to a different USB port and check.

    You can run the Fixit provided in the article and the Coachman.


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    Hope this information helps. Response with status so that we can help you.

  • I can't do all the USB ports work - Evesham Style II Mini Office in Windows XP

    I'm looking for the chipset & drivers for my grandaughters computer, AFAIK is drawn next to a reading Speccy.


    Windows XP Pro 32-Bit


    Intel Pentium 4 2.80 GHz


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    Model Southbridge - SB200

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    Model = P4SBA

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    Hi Graham,

    Thanks for posting your query in the Microsoft Community Forums.

    I understand from the description of the problem, the USB ports don't work on Windows 7 computer.

    I understand this must be frustrating, but don't worry, we're here to help and guide you in the right direction.

    Method 1

    Run this fix - it and check if it helps.

    Diagnose and automatically fix the Windows USB problems


    Method 2

    Reinstall the USB controllers.

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    (f) restart the computer and reinstall the USB controllers.

    (g) connect the removable USB storage device and perform a test to ensure that the problem is solved.

    I suggest you to contact the computer manufacturer and download the latest chipset drivers and check if it helps.

    It will be useful.

    Let us know if you encounter problems with Windows in the future. We will be happy to help you.

  • Service Pack 3 for Windows XP does not recognize that it is connected to the USB ports. I get a notice that something has been plugged, but Windows fails to recognize regardless of the question.

    Service Pack 3 for Windows XP does not recognize that it is connected to the USB ports. I get a notice that something has been plugged, but Windows fails to recognize regardless of the question.

    Disconnect all USB storage.

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  • Why can I connect course websites (https), but sites (http) not ordinary?

    Why can I connect on websites (https) course, but when I try to connect a site (http) regular I get the message that the internet explore cannot display the Web page.

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    Http and https use different ports.  Look at your firewall programs to determine if port 80 is blocked.  Temporarily disable the firewall programs, to see if this is the cause.

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  • Windows 7 does not recognize that a Canon canoscan 8000F is as a device when it is connected to the USB port.

    Windows 7 does not recognize that a Canon canoscan 8000F is as a device when it is connected to the USB port.  Tried unplugging, reboot & reconnect, in different orders, but the computer does not recognize there is.  Tried to install a European website for Canon driver: Scangear CS, 8000fvst8120a_xpen.exe, which is advertised as compatible with Windows 7.   But the installer does not work.

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    Hello Graboots,

    Thank you for your message.  You can plug your printer on another computer, in order to exclude the possibility that the problem lies in the printer?  You can try using a different cable, for this rule as well.  Since it is a question of recognition, we remove the external devices before software troubleshooting.  Do you get anything when you plug the printer (ie. a tinkle of connection)?  Please let us know, we are looking forward to hear back on your part.
    See you soon

    Engineer Jason Microsoft Support answers visit our Microsoft answers feedback Forum and let us know what you think.

  • Why can't connect using Apple Airport WIFI of my remote security cameras but can connect using the Xfinity WIFI Modem/Router open?

    Why can't connect using Apple Airport WIFI of my remote security cameras but can connect using the Xfinity WIFI Modem/Router open?

    Two possibilities:

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    A good wireless network name is...

    ... In short no more than 20 characters

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    Compact, without spaces in the name

    For example, a wireless network network name as... red .dfedoryk Apple wireless network... .is not what you want. Something like... .dfedorykwireless. .. masse are much more likely to connect to non-Apple devices.

    Same guidelines your password

    (2) Apple gives the same name to network 2.4 GHz and 5 GHz network that produces double router band.  Some non-Apple devices are confused by the present, you may need to use the option to assign a different name for the network of 5 GHz on the router from Apple. Then, 'point' your device to the network name specific to which you want to connect.

  • Aspire One D255E don't look for a printer connected to the USB port

    My D255E an Aspire don't look for a printer connected to the USB port.  I've never used a printer on this computer before.  Windows 7 Starter will support a printer?

    It should be.  Try these steps and results reports:

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    If the driver does not load type of devices and printers in the box to start the search, open it, check if printer is already displayed, right-click on it to open the properties, and try to print a Test page. If it does not print right click on printer again to solve problems.

    If the printer is not listed visit Support downloads of the printer Web page to download and install the base driver.  If a wireless printer, you will need the complete package to do it fully implemented.  If you want to be able to scan from the top of the printer to the PC, then you also need the full package.  Keep track of the configuration screens when you install the software.

    If you still have problems after return the exact error with photos if possible.

  • I have a printer HP (part of the package with the computer) which will connect via the USB port is no longer in my office. He has worked previously so, any ideas on how I can get it to work again?

    While I do not know there have been changes to the system (updates and so on), I don't know what modifications have been made or that one; If any, may be the cause of the problem. Compound that with, I can't get back far enough to get to the last time that I used this printer with this computer and it is a puzzle all around.

    Let me know what additional information as appropriate, you need, maybe the way to collect (if it is not something that I already know how to do) and we'll see if we can get these papers start college again.
    System: HP p6604y Windows 7 Home Premium 64-bit
    Processor: AMD Athlon II X 2 220 processor 2.80 GHz
    6,00 GB (5.75 GB usable) memory
    The printer is HP Deskjet 3000 J310.

    Hi Michael,

    1. What is the error you get all trying to connect to the printer?

    2. the printer works properly when connected to another computer?

    3 is. the computer able to recognize any other usb device?

    Follow these methods.

    Method 1.

    This tutorial is designed to help you identify and fix common printer problems in Windows, including print errors, print spooler errors, and other issues that could prevent you from printing.

    Solve printer problems: http://windows.microsoft.com/en-us/windows/printer-problems-in-windows-help#fix-printer-problems=windows-7&v1h=win8tab1&v2h=win7tab1&v3h=winvistatab1&v4h=winxptab1

    Method 2.

    Why can I not print? : http://windows.microsoft.com/en-us/windows7/why-cant-i-print

    Additional information.

    Find and install printer drivers in Windows 7: http://windows.microsoft.com/en-us/windows7/find-and-install-printer-drivers

    Install a printer: http://windows.microsoft.com/en-us/windows7/install-a-printer

    Let us know if you need assistance with any Windows problem. We will be happy to help you.

  • Devices not recognized unless it is connected through a USB expansion port

    Came to use a scanner that was not used for some time and unrecognized device.  Tried reloading drivers, but still no good. Bought the new scanner/printer combo, but not recognized after loading software.  Finally managed to make it work via WiFi. Thought, I'd better try another material... iPOD touch... "unrecognized ', Sony e-raeder..." not recognized '... panic!  Has finally got the devices to be recognized by the connection via an expansion Belkin 4 port hub.  Any ideas on how to solve the problem of USB ports not recognize my hardware when connected directly.

    Have you tried to update the drivers from the chipset manufacturer of PC or motherboard manufacturers websites?

  • USB devices connected through a USB 2.0 Hub Stop Responding and are not recognized after Hub reconnects

    Recently, I have this strange problem where if I connect an additional USB device to one of my USB hubs, some of my devices stop working (especially my keyboard and mouse).

    I have two hubs Generic USB connected to my motherboard. My motherboard is an ASUS Rampage II Extreme X 58 who and chips ICH10. It has 4 USB ports in the front and 6 ports on the rear panel (all USB 2.0). I also have a USB 3 controller card that is connected to one of the PCI-E card to the Board of Directors.  I have the following problems:

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    Now I'm confused what is the cause of this problem. I had the same computer since the release of the i7 and X 58 and never had this problem (although I don't remember if I used USB hubs right there).

    Why Windows to recognise the devices connected to the hub at the beginning, but not after the crash?

    Why USB devices stop working when I connect to another USB device on my computer?

    And how do I solve this problem?


    Just a thought by the way.  If the hubs are not powered you can cause the + 5V due to the excessive number of devices not powered up to a point where it causes accidents and able to resume.

    Reduce the number of UN powered can solve this problem,

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