My connection of Sprint U760 USB card stop working and get error 1721.

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  When my printer stopped working because of error messages about "printer cannot communicate with the computer" (from "twisted into the USB pins?), I tried to change to 2nd USB port without success. I tried a new cable; that did not help.

  Then I uninstalled and reinstalled my Lexmark printer and changed the error message. Now, the printer does not work because "the USB device is not recognized."

  I tried to update the chips; Use 1 USB port; and using the old cable, all this without success. I checked the connections of the cable to the printer and the PC and turn on the printer and goes off; I'm out of ideas. Any other suggestions?

  Hi ChristineKrause,
   

  Here are some links that might help you:

  Peripheral USB is not recognized when you attach it immediately after that your Windows XP computer comes out of standby or hibernation

  Advanced troubleshooting tips for General USB for Windows XP problems

  Try the steps listed in the items mentioned above and see if that helps you solve the problem.

• Keyboard and USB mouse stops working and kicking in and out.

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  Hello

  If you have a USB mouse wired and keyboard connected to your computer, and that they do not work properly, please check following things:

  1. Firstly, plug the USB into a different port on your computer. If they still do not work...

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  2 and if it's OK with another computer, which would be something wrong with your computer, and it could be from a hardware or software.

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  Hi WillisPop,

  ·         Since when are you facing this problem?

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  Use Device Manager to disable and re-enable all the USB controllers

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  3. right click on the first USB controller under Bus USB controllersand then click Uninstall to remove it.

  4. repeat the above steps for each controller USB is listed under Bus USB controllers.

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

  6. check the USB device to see if it works.

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  http://Windows.Microsoft.com/en-in/Windows-Vista/tips-for-solving-problems-with-USB-devices

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  2nd = after the computer has restarted, disable any programs and applications.

  3rd = download / SAVE (do NOT EXECUTE) the TomTom Home Application right on your desktop.

  4th = right click on the TomTom Home Application on your desktop and select "Run as Administrator". This will launch the program and start the installation process.

  5th = when the box shows where your program will be saved on your computer, change the URL to:
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• All USB ports stopped working Windows 7

  Windows 7 Pro. All USB ports stopped working.  When I plug a usb card, windows makes the sound as it connects and the card gets power (light).  I see the map appear in disk drives in Device Manager.  The player does not display in windows Explorer or disk management.  In Device Manager, it has an exclamation point and says that the device cannot start.

  Strangely, I have a USB keyboard and mouse and they work very well.

  It's just the USB drives and chips and SD cards that are not displayed.

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• Network card stops working

  After a storm, the network card stops working.
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  It connects to the network, but it does not send or receive packets of data.
  The MAC address has been changed by the windows hardware Manager and the orange card light is constantly on, even if I remove the network cable.

  Hello

  > MAC address has been changed by the windows hardware Manager
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  You said something about storm for me that this is a reason why the network adapter does not work correctly.
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• SQosmio G50 - 10 H - one of the usb ports stopped working

  Hello forum,.

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  Every now and then to stop it from ports and of course all the parts a unregcognised, not found.
  I get error messages saying unregognised device or usb device stopped working or windows stopped device etc.

  Unplug the hub and repluging it ususally actually come back to life.

  any ideas?

  Stafford

  Hello

  Have you tried to connect devices directly to the USB port?
  Try this and see if the USB device is disconnected, as you mentioned that using the external USB hub.

  Generally speaking, it is difficult to say what might cause this
  You could try updating the chipset driver.
  Of course, you should also check the USB port settings, and power management options for economy.

  In device manager-> USB root & hub-> properties you could disable for unique energy saving USB ports.
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• Satellite P850 - right USB ports stopped working

  I have a new P850 Satellite, after a short period, that the two right usb ports stopped working, I had only a wireless mouse connected to them at the time. Is there a reset for these ports, I tried to uninstall and reinstall, no change.

  Anyone has any ideas.

  > I tried to uninstall and reinstall, no change.
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• Laptop Dell Studio 1537, my "WLAN card stopped working properly.

  I'm not savvy material even when it comes to computers. The last few weeks I had a weak wifi signal and pages were loading very slow and not all the way, etc. I was not able to download anything really, either because of the connection. Earlier I had a pop up of Problem Reports and Solutions, saying "your WLAN card stopped working properly. There is a network adapter that allows your computer to connect to a wireless network. To find out if a version update of your wireless network card is available, contact the manufacturer of your device or computer. »

  My laptop is a 2008 Dell Studio 1537 is no longer under warranty now (I had to pay almost $ 200 for a crack small cover courtesy of my dad dog last year so I'm not a joke). How would I go about fixing that would not cost a fortune? I read something about some people fixed by re-installing the drivers of some sort, but as I said, I'm not too savvy material etc. with comps so I'm a little confuzzled.

  Thanks for any help in advance to all who tackle it. XX

  Hello

  Did you change your computer?

  Windows wireless and wired network connection problems

  http://Windows.Microsoft.com/en-us/Windows/help/wired-and-wireless-network-connection-problems-in-Windows

  Network connection problems

  http://Windows.Microsoft.com/en-us/Windows-Vista/troubleshoot-network-connection-problems

  I also suggest you to see link and check.

  http://support.Dell.com/support/eDOCS/network/p269072/en/R295495/trouble.htm

  I would also ask you to contact the support technology guide.

  http://support.Dell.com/support/index.aspx?c=us&CS=19&l=en&s=DHS& ~ CK = mn

• "Wireless network connector of your WLAN card stopped working.

  I get this message when I turn on my computer: "wireless network connector of your WLAN card stopped working.  I called DELL when I got this message before, thinking that it was the wireless network card does not not, but now I think maybe that the map is not the problem.

  Clues or ideas you can share would be much appreciated!

  Hi CozyB,

  ·         Are you able to connect to wireless internet?

  If you are able to connect to wireless internet, then probably it is just a mistake to start because of some party 3 program or service interfering with the process of starting Windows.

  If this is the case, I you suggest trying to set up the machine in a clean boot state and then install the update.  Follow the given article to set up the machine in a clean boot state.

  http://support.Microsoft.com/kb/929135

  Note: Please make sure that the computer is configured to start as usual according to step 7 of the article: how to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7: http://support.microsoft.com/kb/929135.

  Hope the helps of information. Please post back and we do know.

• Receive the error "Windows Media Center Receiver Service stopped working and was closed" after the video card replaced

  I have a HP computer with Windows Vista Home Premium (32-bit) Service Pack 2.  He has a VISX PureTV tuner card and already had an NVidia GeForce 8400 graphics card.  This Setup has worked well for 2.5 years until what the graphics card died last week.  It has been replaced with an ATI Radeon HD3450 and both all Windows updates have made current.  Since that time, the TV tuner did not work.

  When you sign in to an account, it gives the error message "Windows Media Center Receiver Service stopped working and was closed".  I can use Media Center to watch the recorded video before, but if I try to watch live TV he hangs up and close Media Center.  If I try to configure the TV connection in Media Center it tells me that there is no tuner card.

  I looked at the map and see no problem and I tried it back in place.  He has the most up to date drivers (so does the new Radeon graphics btw).  I tried "Uninstall" in the Manager of devices and then put it back, but it was not good.

  "Windows Media Center Receiver Service Stopped Working and was closed" I tried all the fixes I've seen this error.

  I tried all the things I saw here and elsewhere related to this issue.  I did a "clean boot" with all non-Windows services and the disabled startup process.  He always did the same thing and gave the same mistakes.  It seems to be linked to a Windows service, and I hesitate to begin deactivation to track down.

  I ran 'sfc' in mode 'cmd' and he found no problem and none of the files to be fixed or could not fix.

  In the list of services, I changed the login for "Windows Media Center Receiver Service" to "Local System account", Local Service, Network Service and individual accounts, but no permits.

  I'm afraid I'm at the point of having to reload the Vista, but I don't know how to do this and want to avoid at all costs.  I don't have the recovery disks and software.  Is this enough?  Can I reinstall from the recovery disks without wiping everything aft of the configuratiion with which it was delivered?  I guess personal files will be OK (although I don't know this for sure), but I'm afraid I'll have to reinstall other applications, my family has developed over time and perhaps lose the media protected by DRM licenses.

  Someone has encountered anything like this or have any suggestions?

  Well, I finally stumbled into the solution.  It was caused by a conflict with another application.

  A few weeks before the card failure I had installed a program called video capture Replay Video Capture that I had bought a few months ago and never used.  However, at this time where everything including the TV tuner and Media Center worked well that's why I associate the problem with this software.  The problem comes after the system is rebooted the first time after installation.  In my case, it has not been rebooted until a few weeks later as part of the recovery of the fault of the graphics card.  Suddenly, the TV tuner did not work and I get the error messages mentioned in this title of the thread.

  I was at the end of my rope with this and was just to clean your system to do a reformat and reinstallation.  I uninstalled the Replay Videa Capture program to move it to another computer, and when you restart the computer I noticed that the error message disappeared.  Of course I went to the Media Center and could set up my TV tuner card and watch television.

  Looking for some info on this conflict, I found the following. (http://forum.applian.com//showthread.php?847-Conflicts-between-RVC-and-XP-Media-Center-OS&s=c0aec9897b51d550c47b919e73e59bfc)  It is difficult to say who is at fault in the present.  I'm sure that Microsoft accuses Applian for the encoder to mpeg (mcm2ve.ax) used in Replay Video Capture, while Applian says that the problem is a Windows process (ehrec.exe) that works all the time, hogging the tuner on the system device.  According to Applian other products similar to theirs have this conflict as well due to the process of Windows.

  Fortunately, there is a solution in this case.  Applian has released a new version of Replay Video Capture (version 4.2) that uses a different mpeg encoder and eliminates the problem.  Given the surprising lack of info about it on the Microsoft Web site, I wonder how many other people with this unresolved issue dealing with the same thing as me.  If you're like me and you don't usually need to reboot your PC for a few weeks at a time, you may never know to associate the problem with the application.  What a waste countless hours trying to diagnose, and most disconcerting, that's what I was about to go through a reformat and reinstall because of this.

  Thought I'd post here my problem resolution in the hope that it might help someone else.

• USB keyboard stops working

  I have a similar problem - USB keyboard stops working, although device manager says it's working properly. Sometimes have disconnected and reconnected it helps, sometimes not. Trackball USB stops working.  Sometimes the USB keyboard is also dead after hibernation.

  This is a new problem happened after I installed Windows 7.  (I am running XP before that.)

  I apologize for the late response. Thank you for any assistance.  Problem is solved!

  I don't have test Gerry Cornell suggestion to plug directly into the USB port, because this problem occurs during labor when I use the keyboard and the trackball with a hub (which is connected to one of the 2 USB ports in the back of the computer via an extension through a wall to the computer cable - I access the computer in 2 different rooms). But he suggested a possible solution. I bought an inexpensive motor hub, and the problem has stopped completely.  It has not occurred during the months spent at all.

  Although this problem of keyboard disappears permanently started immediately after the transition from XP to Win7, there is a hardware solution.  My guess is that with the extension and a hub not powered, there were seeds of signal, and the XP driver was better at handling what driver Win7.

  BTW, the XP to Win7 upgrade has been done by installing (but does not) Vista and then install Win7 on that, as advised by Darek emulators.com.  WinXP ran SoftMac pretty badly but Win7 it runs like a champ. OS 8.1 boots in 10 seconds approximately.