Communication via a USB hub

Similar Questions

• Time machine on a usb hub

  Last summer, my iMac (running El Capitan) 2010 started hooking serious problems where the only solution would be to perform a reboot of the material.  After much experimentation and running on an external drive, I discovered that Time Machine was the culprit.  That is, when TM was off, the Mac has worked well, but if I turned back on, after 12-24 hours of TM, the Mac, would essentially become unusable and require a restart of hardware.  While I would certainly prefer to have current backups made via TM, there is nothing on this machine that had not been saved on other storage devices, so I was happy to let it go for several months.  Thinking maybe TM two disks, I had been using had been corrupted, I have them off and on again 5 TB (internal drive is 1 TB).  Once again, the same results.  Thinking maybe the USB hub was at fault, I replaced the hub last night.  This morning, everything seemed fine, but four hours later, after being in mode 'sleep' for most of the time, it was frozen again.  I have attached from the player to the USB port on the iMac Freedmen and will wait to see what happens.

  Now I read that Apple has recommendations for the use of TM and nowhere in there is a mention, a USB hub, for or against.  Anyone has any information (even if it's just anecdotal) regarding the use of the Time Machine disks via a USB hub?  For the record, the drive is a Seagate 5 to, USB 3.0, and I connected via USB 2 and 3 USB hubs with the same results (suspended).

  Anyone who can shed light on this aura of gratitude.  It has been confusing me for some time - especially since it seems that nothing of what I found to indicate that you can not or do not use a Time Machine drive via a USB hub.

  These hubs are externally powered? And what else is connected to them?

• Drive external hard connected via USB hub: icons not showing on desktop

  Hi... on an iMac 2015, using a USB hub 3.0 occasionally to connect an external hard drive (which stores these things as art assets)... but the external hard drive icon does not appear on the desktop... it IS in the sidebar of Finder, though...

  But on the icon the Finder sidebar, the small icon "eject" gray is missing, and the only way to eject is to right click and select "eject" or use the eject button in the Finder toolbar... it's okay...

  But is there a way to display the icon on the desktop, so I can always remember to eject the disks attached?

  (the desktop icon shows normally when connected directly via the USB ports at the rear)

  Thank you.

  Finder-> Preferences-> general, check the appropriate boxes under "show these items on the desktop".

  [My personal choice is them having all checked]

• drive external hard connected via usb hub powered Time Capsule guard fall...

  Hello.

  Try using a player external 3.5 "connected via USB hub powered to my Time Capsule to serve as a backup Time Machine secondary.

  When I connect the external hard drive, it turns out, and everything seems good (Yes it is correctly formatted). I see the external hard drive in my time machine preferences panel and also the desktop browser window, etc..

  After selecting the drive hard as the second backup TM, I start TM. After a few minutes the backup fruitbodies. Audit of airport utility, the drive no longer appears in the profile of Time Capsule. I can't turn back the drive without unplugging / plugging the USB cord. I went to HD (WD green 4to) and HGST 4to - deleted both.

  What is the speaker (the box is powered)? Can you have a USB hub between the external hard drive and time capsuls? Something else?

  Just seems like something somewhere that expire, causing it to drop the connection...

  Thanks for your useful suggestions to fix this!

  Is your TC the Gen5, model AC?

  I must say that your experience is not uncommon. I tested it myself recently and was disappointed in how the poor reliability has been... Although not as bad as yours... in fact cutting in a few minutes to start a backup is ridiculous.

  What is the speaker (the box is powered)?

  Quality of the envelope varies a lot... What is it??

  If this is the typical brand X... Plug it into your Mac. is it reliable?

  Go to your control panel and dig up the actual USB chip used... I don't know if we can help on type a lot. But it helps us determine the fleas are a problem.

  I found the hard drive in the finder to mount helped... not the sparsebundle that must be mounted by Time Machine... but the disk must be mounted in the finder so that you can copy files back to him.

  I start TM. After a few minutes the backup fruitbodies.

  Check in the finder, it has created the sparsebundle and works.

  Can you have a USB hub between the external hard drive and time capsuls?

  It's our usual recommendation... but he won't always help... especially if the USB hub is another brand X...

  Note that all societies are changing USB tokens at the drop of a hat... some seller of a rival company arrives and offers them 1 c off the coast of 1 million chips it is common to spend even in the middle of a race. Even the tenors have no satisfactory fixed hardware...

  The computer has loads of memory... and may contain drivers for hundreds of different USB tokens... but the TC is a very limited amount of space and with questions if the driver is not fair.

  I started a thread for a database just now... has not progressed much.

  https://discussions.Apple.com/thread/5912861?TSTART=0

• Yoga 2 Pro Ethernet via USB hub how?

  I bought a Toshiba Dynadock U3.0.

  After connecting my LAN on the HUB cable, how to do yoga to recognize the Internet connection?

  For now, only works with wireless?

  Everything else (connection USB 2.0 and 3.0 so that work very well HDMI output).

  Would appreciate some advice here!

  Thanks in advance.

  Taking the advice and ran an update of Windows.

  Of course, it updates had something to do with an Ethernet adapter.

  After installation and reset, no change.

  I opened the device in the control panel and low and behold, the USB Ethernet adapter was not on.

  When the USB hub was attached, Windows installed automatically the drivers.

  This time, I used the CD that came with the hub to install the set of drivers and guess what?

  Yep!

  I'm a fool.

  Lucky, but still a fool.

  After you have installed the drivers on the CD provided, I have now an Ethernet connection works.

  Let that be a lesson.

  Always check the installation!

  Thanks for the advice, he leads me finally to the right solution.

  

• External USB hub limit for Satellite Pro C650

  Is there a limit to how much you can connect via the Satellite Pro C650 of external usb ports?

  Provides four ports hub I, ports seem to work individually and all devices operate normally when plugged directly into the top of the Tower, but when all devices are plugged into the hub and combined high tower, there are future errors.

  Thank you
  Karyn

  Well, I think that this should not be a problem if the unique USB hubs provide clean power.
  The fact is that the only USB port provides common 500mA and if several devices would share the power of a USB port then it might be possible that the 500mA available would not be sufficient for all USB devices.

• Serial USB Hub error

  Hello

  I am currently using a USB-6009 case and another device connected via USB using a virtual COM port. These are connected to the computer via a powered external USB 4 port hub. Whenever I run VI I get the following error:

  Error 1073807343 has occurred to the property node

  (arg 1) visa set up a Serial Port (Instr) .vi.

  > Read MI3 Temp.vi-> SagDAQ.vi

  Possible reasons:

  VISA: Insufficient location information (Hex 0xBFFF0011) or

  the device or resource is not present in the system.

  After this error I have to disconnect and reconnect the device to use. I installed the drivers that came with the device and if I use the software supplied with the unit provided I have no problem with the device at all.

  I also noticed that if I do not use the USB hub there no problem either, however, I have to use the hub for this configuration that the ports are limited.

  I have this unit used in several parts of my VI, but everything works in series and all instances are completed by closing the VISA resource. If I open just one of the sub - VI which calls the device that I can run indefinitely without any problem on the hub, but for some reason when I use them in the main VI I get this error.

  Has anyone else had this kind of problem or knows how to handle?

  Thank you!

  Hello Jeff,.

  Josh has created a demand for service inside OR to ask for help, so after sent us his code, we noticed that he was using the configure serial port VISA 3 times one after the other, the third VISA configure serial port VI was so poping of the error settings in this VI were does not match the previuosly those configured. After leaving one set up VISA VI serial port in the code, the error disappears.

  Concerning

  Mart G.

• Can LabVIEW control a device series (RS232) via a USB port on a Mac?

  Using LabVIEW 6 and operation of G4 Mac OS 9, it was once possible to use a USB port for control and acquisition of data of a pH meter in our laboratory. Only, we used "Serial Port Init.vi" and wired to port #0, which referred to the USB port. We connected the connector DB9 to the pH meter to the Mac's USB port via a USB-to-DB9 adapter. LabVIEW 6 could then send commands to the pH meter and acquire pH values of him using the serial port, reading and writing icons. I try to do the same thing now using LabVIEW 8.6 on a Mac Pro OS 10.5.6 and leads nowhere. The simplicity of LabVIEW 6 is long gone, and it seems to be necessary to use VISA icons. When I write the vi using the icons series VISA, three potential serial ports appear to be available. However, the vi gives an error message, except when I choose a specific of these, ASRL2::INSTR, under the name of the resource, in which case the vi runs, but there is no communication with the pH meter. I can't understand what physical connector on the chassis Mac corresponds to ASRL2::INSTR, but it is does not seem to be the USB key. I tried to write the vi using the icons of VISA USB of LabVIEW, but which requires knowledge of USB communication protocols which is beyond the expertise of this chemist. So, I'm almost at a loss what to try next. I could buy a serial RS232 card to install in a PCI Express slot in the Mac, hoping that he will be recognized and can be resolved by using the icons series VISA. However, as it was once trivial to perform this task of communication via the Mac's USB port, it seems that it should not be necessary to buy another card. LabVIEW continues to become more and more complicated, and if she doesn't get any more improved, it may not work at all. I've been programming LabVIEW on Mac for almost ten years and she became gradually more frustrating. In any case, is - anyone out there fought USB / communication series battle on a new Mac and won? If now it is impossible, no matter which allowed to pass through a RS232 serial installed in a Mac Pro card? Any help will be appreciated. Thank you.

  Ken1,

  I don't have a chance to see the USB-serial last night.  I'll make a note to try it again tonight.

  Dennis is right.  You need to focus on the determination of what works or not in communications.  Look at the system information (Apple menu > about this Mac > more info...).  Then select the USB item in the list of the contents of the left column.  See if USB devices to look like they could be serial port emulators.  I don't remember exactly what they are called.  If the device doesn't appear like USB Raw, it probably means that no driver has been installed.  You can unplug the unit and see what are the changes.  This will tell you if the operating system sees the device.

  Lynn

• U2413, calibration solution Ultrasharp fails to connect to display via the USB port

  Dell U2413 SN: CN-0YCM0F-72872-48P-A81L REV A01 August 2014

  Try to run the ultrasharp Dell V1.5.3 on this monitor calibration solution, however, the software stops and displays "please connect the screen to your computer via a USB cable." I click the OK button after you have checked that the USB port on the computer is connected to the USB connection screen, but ultimately, this message appears:
  "Could not establish a connection to the screen. Please make sure that the USB cable is connected and try again. »

  Has tried this on two different computers, running Windows Pro 8.1. One was connected to the monitor cable HDMI to DVI (Thinkpad 10 via docking station), the other using the provided Dell Display Port printer for (Tablet Thinkpad X 230) mini display port cable.

  The USB ports on computers were connected the Dell supplied USB 3 cable to the monitor. Also tried this on a single computer by using a USB 2 port and a USB cable with the same result. The USB connections on the monitor seems to work ok when you plug a flash drive or the i1 Display Pro. Also, did a reset Monitor USB and verified that Windows has seen additional generic hubs when the USB Monitor is connected to the computer. There are 4 additional hubs when you use additional 2 usb hubs and USB 3 cable when using the USB 2 cable. In addition, power cycled the monitor several times (as recommended in the version that is known for this problem) without success.

  Before the attempt to make the calibration:
  A factory reset on the monitor.
  Ran the monitor self test and SUBMISSION. No problem found.
  Monitor purchased from Dell November 2014

  Same result with V1.5.7

  Any suggestions? Where should I go from here?

  I had success in the U2413 of profiling. I pulled out an old workhorse, a Thinkpad T43
  under Windows XP. Then installed the ultrasharp Dell V1.5.3 calibration solution and all
  updates available from Microsoft, but no other software - nothing of the Dell-supplied with
  the monitor. Used the DVI - connection DVI and USB 3 cable supplied with the monitor. The
  software Profiler has worked well with this configuration. When the program first took to the "Start
  Screen measure"(where the problem occurs already noted) Windows (message status bar)
  has reported that he accessed software Realtek 3.0. So I focused on research at the Realtek
  software on other systems.

  On the Thinkpad 10. There were two 1. "Realtek Card Reader" and 2. «Realtek USB 2.0 Card Reader» I have
  removed both and reinstalled the software Realtek for Dell monitor CD. Insert an SD card and
  a USB in the monitor and both were seen by Windows Explorer. There was also a Realtek USB
  3.0 card reader to showing in Manager devices under USB controllers. Using the connections between the T10 to monitor previously described the Profiler software, then ran normally.

  X 230 - I removed the "Realtek Card Reader" (V6.2.9600.30168) software and tried to start the
  Software Profiler and it does not at the same point as before. Then I installed the Realtek USB 2.0
  Software for the Dell card reader. However, there was still no Realtek USB 3.0 card reader
  display in the Manager of devices under USB controllers. Software Profiler is not like before. I then
  inserted an SD card in the monitor and the "Realtek USB Card Reader 3.0" appeared in the device
  Manager. Software Profiler, then ran normally.

  So now my two systems Windows 8.1 software profiling will not work if the 'Realtek USB 3.0 Card '.
  Reader"is not listed in Device Manager. To do this the software must be installed (for example
  starting from the Dell CD) AND an SD card must be inserted into the SD slot on the monitor. Remove the SD card
  Card and the device disappears and profiling software will not run. Insert an SD card and the
  Software Profiler works normally.

  How can I get the "Realtek USB 3.0 card reader ' to automatically load before running the Profiler software?

• Windows Update driver Fresco Logic USB Hub rot caused the pilot to read device status: the drivers for this device are not installed. (Code 28).

  Windows Update driver Fresco Logic USB Hub rot caused the pilot to read device status: the drivers for this device are not installed. (Code 28). The Roll Back button is not active. Where can I get the previous driver that came with my system. ASUS N53S Windows 7. Thank you very much.

  Hello

  Thanks for posting in the Microsoft Community.

  I understand your annoyance that you cannot update the driver hub USB rot. Please follow the steps below to help you to solve the problem.

  I would like to inform you that a Code 28 error is caused by a driver missing for that piece of hardware.

  There are all sorts of reasons that a driver could not be installed for a device, but your troubleshooting the problem will be the same regardless of the root cause.

  • Remove or reconfigure newly installed unit.
  • Restore the version before your driver update.
  • Use system restore to undo recent changes in Device Manager.

  Step 1: Roll back the driver to the version before your update.

  If you are having problems with your computer or device after upgrading sound driver, you can restore to an earlier device driver. If you are having problems with your computer or device after upgrading sound driver, you can restore to an earlier device driver. If you are having problems with your computer or device after upgrading sound driver, you can restore to an earlier device driver. If you are having problems with your computer or device after upgrading sound driver, you can restore to an earlier device driver. Check out the link below to make back the driver:

  http://Windows.Microsoft.com/en-in/Windows/restore-driver-previous-version#1TC=Windows-7

  When Windows 7 starts up again, it will load with the device driver of this material that you had previously installed.

  I suggest you to uninstall the driver from hub to rot Fresco Logic USB Device Manager and install the most recent on the manufacturer's Web site.

  Tips for solving common driver problems:

  http://Windows.Microsoft.com/en-us/Windows7/tips-for-fixing-common-driver-problems

   

   

  Hope this information is useful. Feel free to get back to us for further questions or problems related to the Windows operating system.

  Thank you.

• USB HUBs in Windows 7 has stopped working

  All devices connected to a USB 2 HUB worked until today on Windows 7 Pro System.  Uninstall and re install installs the device in the field "Other devices" without a pilot.  When I select Generic USB hub to the installation, it is not recommended.  Installation in any way will result in failure: Code 31.

  Hi John,.

  Thanks for posting your question on the forum of the Microsoft community.

  I would like to know some information about the problem so that we can help you better.

  What was the reason to uninstall and reinstall the USB hub?

  I would suggest trying the following methods and check if it helps.

  Method 1:
  Run this Microsoft fixit and check if that helps.
  Reference:
  Hardware devices do not work or are not detected in Windows
  http://support.Microsoft.com/mats/hardware_device_problems

  If this does not help, then use method 2.

  Method 2:
  I suggest you uninstall and reinstall the USB controllers and check the issue.

  Use Device Manager to uninstall and reinstall all USB controllers. This allows controllers to recover the port USB of his condition does not respond. USB controllers represent the USB ports in Device Manager.

  To uninstall and reinstall the USB controllers, follow these steps:

  a. Click Start, type Manager of devices in the search box of start and press ENTER.

  b. develop a 'USB Bus controllers'.

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

  c. right-click on the first controller USB under "In Bus USB controllers" and then click "Uninstall" to remove it.

  d. repeat the above steps for each USB controller that is listed under 'USB Bus controllers'.

  e. restart the computer. After the computer starts, Windows will automatically check for changes on the hardware and reinstall all USB controllers that you uninstalled.

  Now, check the USB device to see if it works.

  I hope this information helps.

  Please let us know if you need more help.

  Thank you

• D - Link USB Hub DUB - H7 works do not correctly with Windows 8

  I am also having the same problems.

  Very recently, I went from 7 to 8.1 and with the operation of the steam, the sound of connect/disconnect repeats about every 10 seconds. If I disconnect the D - Link DUB - H7 sound no longer appears.

  I could live with it for the time being cut just sounds system, but unfortunately the problems don't stop there.

  If I have my USB DAC (sound card) connected via the hub, pilots always crashes in a few minutes in Spotify or any multimedia player. It means that I actually listen to music at all.

  Hardware troubleshooting does not detect any problems at all. For now I'll connect my USB DAC separately and cut system sounds, but it is not a solution. Never had any problems with this hub in Windows 7 and I don't really feel like buying another usb hub since it fits my needs perfectly.

  Separated from -.

  http://answers.Microsoft.com/en-us/Windows/Forum/windows_8-hardware/d-link-USB-hub-dub-H7-not-working-properly-with/1158a3bc-487d-40C1-b3d0-2419ace3ef2e?page=2

  Hello

  Answer the next question to learn more on the subject, that you are facing.

  What is the brand and model of the computer?

  Install the chipset drivers by downloading from the website of the manufacturer of the computer and check the status of the issue.

  I also suggest you run the Fixit from the link next and if it helps fix the problem.

  Hardware devices do not work or are not detected in Windows,.

  http://support.Microsoft.com/mats/hardware_device_problems/

  Please let us know if you need assistance.

• Problem connecting to HP DJ5900 via the USB port on the router

  HP DeskJet 5940, MacBook Pro, OS x 10.6.8.

  I want to connect the DJ5940 through my router (Speedport W723V) via the USB port.

  I see that the printer is connected to the USB port of routers and adding a printer on the MBP works.

  However, when I try to print, printing dialoge sas is printing (full % increases), but nothing is displayed and the status of the printer finally chnges for "printer paused".

  Is what I'm trying to do possible?

  Dean,

  Thanks for your help, but I went in a different direction: the Speedport router is EXTREAMELY oriented Windows, to the extent that it has nothing in the documentation to do anything with a Mac, so I've dug a former print USB/Ethernet of Axis Communications Server. At least 7 years old and no documentation, but connect to its IP address allowed me to set it up, and Macs connected to it directly.

• iPhone 7 will not play audio via the USB port on the car.

  When I plug my iPhone USB port 7 more in my car (15 Jeep Grand Cherokee), the artist/song/podcast information appears on the screen, but the sound plays through the speakers of the phone.  I have confirmed that my settings are all the same as they were on my 6s, who played without any problems via the USB connection.  Bluetooth streaming works fine - no problems at all.  Any ideas, or is this a problem similar to that people have with CarPlay?

  Welcome to Apple Support communities, kevo.mac!

  Congratulations on your new iPhone 7 more! I see that you connect with your Jeep Grand Cherokee using the USB port. Everything seems to work fine, except that the music plays through the phone instead. I'll be happy to help you to get this working.

  Help to connect your iPhone, iPad or iPod touch with your car radio

  If you are using USB playback

  Restart your iOS device and your car.
  Connect your iOS device to another stereo USB port (if you have one).
  Try another USB cable.
  Update your iOS device.
  Install the updates to the firmware of your car radio.
  Test of audio playback from a different application. If you can not play audio from a specific third party application, contact the developer of the app for help.
  If you can not play audio from an app Apple, contact Apple technical support.

  Enjoy your weekend!

• A powered USB hub will support Ethernet / USB?

  Wifi in my office is uneven, so I need to wire a Macbook Pro (if that's the term). Because the Macbook Pro is not an ethernet port, I get an ethernet cable / USB. I also get a USB hub with an AC adapter.

  I know that you should not the ethernet cable / USB in a hub that is normal because it won't have enough power. But a powered hub will provide enough power for thin ethernet connection? (This laptop gets transported frequently, so I want to minimize the number of items that need to be plugged in every time.)

  Thank you-

  Christine

  I wouldn't use a usb to Ethernet port, I would use the port of Thounderbolt ter http://www.apple.com/shop/product/MD463LL/A/thunderbolt-to-gigabit-ethernet-adap