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Yoga 920 USB-C ports stopped working suddenly

Q: Yoga 920 USB-C ports stopped working suddenly

Yesterday evening, the USB-C ports of my Lenovo Yoga 920 stopped working suddenly. While working with the computer, the connected external monitor and the laptop screen both went dark and I couldn't revive them by disconnecting/reconnecting any cables or by pressing any keys on the laptop. In the end, I had to force a hard restart of the Yoga 920 by pressing the power button on the right. After rebooting the laptop, I noticed that it completely failed to communicate with any devices connected to the USB-C port, including my external monitor, keyboard, mouse and Ethernet network. First suspecting an issue with the connected USB-C hub (Kensington USB-C Universal Dock 60W (SD4600P)), I performed a full power recycle, including detaching/attaching cables, of all involved components. This had no result. I noticed then in the Windows 10 Device Manager (devmgmt.msc), that the USB device "UCSI USB Connector Manager" was marked as not working (yellow exclamation mark). The status of the device was:This device cannot start. (Code 10) STATUS_DEVICE_POWER_FAILURE Disabling/removing/reinstalling this device in Windows 10 had no effect on the issue. Then I noticed that the laptop didn't charge while connected to the power supply from Lenovo, which was delivered with the laptop. There are two USB-C ports on the left side of the laptop. The one towards the back is marked as the one to use for charging. It didn't work any more. I had to connect the USB-C cable from the power supply to the USB-C port towards the front to make charging work at all. This also applies when the computer is completely shut down (no sleep/hibernation mode). I can see that the white charge light on the Yoga 920, next to the USB-C ports, doesn't turn on when the back USB-C port is connected. It does turn on when the fron port is connected however. Unless someone has some other suggestions, this indicates to me that this is a hardware issue on the Lenovo Yoga 920. No BIOS/driver/OS updates were installed during the past week. In November (a few weeks back), I did install all of the latest BIOS/driver/software updates from Lenovo for Yoga 920 using the Lenovo Companion application. Performing a recheck in Lenovo Companion of available updates after the issue occurred produced nothing new to install. Any other tips or tricks that you would recommend, other than returning the laptop to Lenovo for repairs?Does the Novo key/button exist on the Yoga 920, allowing me to access BIOS settings?

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Preferred Solution: Yoga 920 USB-C ports stopped working suddenly

I recommend downloading and running DAP. It can help sort out any driver and firmware related issues on your system

It's worked out well for many of us in the past.

You can download it direct from this link http://downloaddap.org. (This link will open the download page of DAP so you can save a copy to your computer.)


That day suddenly my PC's USB ports stopped working. I tried all USB ports with deferent kinds of drives(pendirve, mobile, modem) but computer is not responding. I tried reinstalling my windows 7 but remains same. I also tried Ubuntu, Mint, Hirens Boot CD etc but no OS finds my any kind of USB disc. On windows 7 I tried uninstalling and installing USB drives manually but don't work. In the mean time today at dawn one of my USB modem started working(on Win7) but after some seconds it became like before.

Can anyone figure out which problem I'm facing? Is it related to my hardware?

A:Suddenly all USB ports stopped working on win 7

First place I would start would be update all primary drivers for your PC, what ever flavor you have, desktop/laptop. Go to that vendors website and download and install all the latest drivers. If you have add on specific hardware go to that vendors site for drivers.

The next thing I would do is to rule out any Virus's, malware, spyware and adware that my be lurking about your system. It's known that some of these nasties can and do corrupt system software and hardware.

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I have a Compaq Presario CQ62-215DX, running Norton Internet Security and firewall through Windows 7. I sucessfully installed new Wireless LAN and Lightscribe system software several days ago, along with the Live Essentials, Realtek and Windows 7 Updates.

Everything was operating correctly yesterday, but when I booted up my computer today my wireless mouse refused to work. After trying a fix involving a USB stick, I realized that none of my USB ports work. The ports light up when I restart, until Windows 7 finishes logging in, and once it begins the drivers refuse to work. Is it because of the recent updates? Because I cleaned up my back-up copies? Any help will be apprecited!

A:USB Ports Have suddenly stopped working...

Have you tried disabling and re-enabling all of your USB controllers and ports in Device Manager?

If you don't know how to do get there...
Start menu > Right click on Computer > Manage > Device Manager

Moreover, to disable USB ports, go to the Universal Serial Bus Controllers button in the Device Manager. Right click each individual one and click disable. For each one. Then after each one is disabled, start from the top and do the same thing but click Enable this time. There are some dependencies in there sometimes that will disable more than one individual device, so be aware of that.

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All the USB Ports were working just fine (two still are, the one with this keyboard and mouse plugged into it.. but I haven't UNPLUGGED them since this problem started so I'm NOT going to do that now, JUST IN CASE, those ports stop working too and then I have absolutely NO ACCESS to my computer at that point. ) and everything was how it normally was.  I had just plugged in a flash drive and removed data from that drive, unplugged it thru the eject button and I also had an external drive plugged in later and it worked and ejected just fine) and then OUT OF NOWHERE now it the USB ports REFUSE to work!
I'll plug in the device, I'll hear the NOISE on the computer that lets you know it's plugged in but then NOTHING happens and it does NOT get recognized in the My Computer/Devices folder!  I have tried ALL the available ports and NONE of them work!  I tried my devices on another computer and they work perfectly fine.  It's THIS computer!  And it's only a year and half old!!! And I bought it BRAND NEW!  
I NEED THESE PORTS TO WORK!!  It is how I TRANSFER my Family's Pictures from the camera and then I BACK THEM UP on an EXTERNAL DRIVE.  I was just about to DO THAT when everything went wonky.    This computer is like the HEART of the media for our Family and I can't have this happening!    I'm sooo UPSET right now!
I have restarted and rebooted and I have even unplugged the power source from the PC for ... Read more

A:The USB Ports *SUDDENLY* Stopped Working in my De...

Welcome to the Lenovo Community !
I am assuming that the two USB ports that are working are on the back of the computer.  That the two other back ones along with the front ones are not working.  Possibly there is a conflict with the hardware information stored in the CMOS which is preventing all the USB ports from working.  I would suggest you try clearing the CMOS to see if that will correct the problem you are having.  On page #26 of your model's Hardware Maintenance Manual show the location of the coin cell CMOS battery.  The battery's socket will either have a little tab to eject the battery or a slot in which you can use a small screw driver to lightly pry up the edge the battery.  With the machine unplugged remove the battery and press the power button for 15 seconds.  Then reinstall the battery, plug and then boot up the computer to see if the problem is resolved.  It is normal after clearing the CMOS to have to enter the time & date when the computer is booted  up.
The link below is for your model's Hardware Maintenance Manual. When working inside your system please follow all precautions and recommendations that are noted in the manual.

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On a previously fine PC, I noticed the usb cable for my Palm Pilot had fallen out (so that's why I couldn't connect to it!)

So, I foolishly plugged the usb cable in. The screen froze, had to press reset to reboot.

On rebooting my ISDN adaptor had a cross on it, indicating it wasn't enabled, it was IMPOSSIBLE to restart it. So I deleted it in device manager......it wouldn't delete "the device has failed to respond in a timely fashion".

Then I realised all USB connected peripherals were not responding, ie isdn adaptor & printer! Everything I've tried has failed, switched ports, cables, nothing is detected when a usb cable is plugged in. So I was stuck with no internet connection, until I reinstalled my old PCI modem. Please guys, any advice would be much appreciated. I'm concerned something I did plugging that cable in has fried all my usb ports on my mobo


A:All USB ports suddenly stopped working!

XP 1900+
Win XP
512 Mb RAM
100G W Digital HD
4 usb ports on ASUS A7V 266E Mobo

PS system restore hasn't helped, all usb still kaput!

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Hello all,

A Few days ago my laptop stopped reading my 2 USB 2.0 Ports (I am using a Compaq Pressario v6000 Laptop with Vista Home Premium 32bit). I went to the Device Manager and updated, uninstalled, reinstalled, prayed to god yada yada the drivers with no luck. I also went back to a old restore point and no luck with that. My computer is fully updated and I have no other idea's what to do. I have read something about INF files but I am somewhat computer literate (enough to get me in trouble) but not enough to know about INF'S and what to do. Any help would be greatly appreciated, and thanks in advanced for your time.

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Lately every time I try to connect a known working USB device, like digital camera, thumb drive, web cam, etc. I get a pop up window that says the device is not recognized. I have a printer plugged into a USB port, and it works, although I did have to reinstall the driver for it recently, because it too get the same error.
Is there a driver or drivers I should reload? What should I do to determine if it's really a hardware (port) problem? Devices will work on other computers, just not this Compaq desktop, 1.6Ghz, 2GB RAM, roughly 3 years old, XP SP3

A:USB Ports suddenly stopped working

Try these ideas; http://support.microsoft.com/kb/871233

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My main desktop which has been going through a bit of a patch at the moment now has all USB ports acting very strangely in that plug something in and the insert sound goes off but nothing shows up in Computer and even Kaspersky does not ask if I want to scan it.

The machine has the usual back and front ports and also a card reader (Icy Box with 2x3.0 and 4x2.0 and SD etc slots)

Now I have tried chkdsk /f /r sfc MBAM SAS ADW full Kaspersky scan and tried the sticks and drive sin my other machines and all are good. Have installed all the drivers etc etc but still no go.

Any ideas please before I run a rescue disk and memtest as I seem to be running out of options. Boards about three years old now - Asus P8Z77-V

A:USB ports suddenly stopped working

Try unplugging all the power and let it sit overnight. Then plug in and try again in the morning. I've seen this work on occasion when all the USB ports suddenly don't work. For that matter, if simply unplugging AC doesn't work, might be worth pulling out any CMOS battery too.

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just few days ago my printer and webcam and iPod connected and worked perfectly fine. Suddenly non of them work anymore!

When i turn on my printer a msg pops up syaing "Unknown Device Not Recognized", same thing happens when i attempt using my webcam and plug in my iPod. But the thing is, my camera works! When i connected my Sony Digital camera to uploaded pictres, it worked! and it still works.

So why is it that my camera's the only device that will conenct to my computer?

Windows XP

A:USB ports suddenly stopped working!!

Tell us the brand and model of computer, whether a desktop or a laptop, and the location of the usb ports... whether front or back, or whether we are talking about a powered external hub, or a multimedia box in the middle of the computer which has a 9 in 1, 15 in 1, or similar memory card reader with USB ports.
Are the USB ports built into the case, or on a pci card slot on the back of the computer.
Generally, USB ports do not fail. There are a few times when they do because any electronics made with chips, thyristors, and printed circuits can fail. But USB ports are among the most rare of failures... except when you are using multiports.
On inexpensive USB connections, they all share one connector... If you have four or five ports on one connector to the motherboard, then those in use will reduce the power that is accessible on lower quality units.

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Last night I was doing my usual gaming on my PC when I started getting popups about USB drives malfunctioning. I didn't think much of them at the time. Later on during the night, my USB mouse stopped working. I didn't think much of it and I switched it to a free port. It started working again. Then trouble started.

I plugged my headset into another free port (it had been plugged into my Xbox 360, it was working fine beforehand) and started to watch an episode of a TV show. The sound was horrendous. It wasn't the file and it was not my headset, as I tested it again on my Xbox and was working fine. I switched USB ports. It didn't work. Then my mouse stopped working, and my keyboard. Funnily enough, my USB phone charger still showed it was charging my phone, and it still does right now.

I restarted my computer, and at the POST screen it said a keyboard error had occurred or one was not connected. When I start my computer with the keyboard plugged in, the lights flash and the backlight comes on (it is an illuminated keyboard, so the blue lights beneath the keys work for some reason) but none of the keys registered. I had to dig out an old PS2 keyboard to get my computer to even get past the POST screen.

I did some reading around and saw a simple fix of turning off your computer and unplugging it from all power sources, so I left it unplugged for 10 hours while I was at work with the CMOS battery removed. I got home and plugged it back in with just the keybo... Read more

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I have an older Dell Inspiron 5100 that's been rock solid since day one.

I recently transferred all my music from my PC to my Seagate FreeAgent GoFlex so I could organize my files while I was out of town on business. When I got to my hotel and plugged the Seagate into the USB port the laptop would not recognize it.
There's two USB ports, one of the USB ports does nothing at all when I plug the drive in (not even a 'Ding-Dong' sound). The other port at least responds but still not recognized. By "responds" I mean Windows responds with a "Dunn..." sound; not the happy two tone sound of a device actually being recognized and available, just a "Dunn..."

I've used this drive before on this laptop on several occasions so I know it's compatible. I also came home and plugged to drive back into the PC to see if the drive itself responds. It does, and all files are there and happy.

Also, when plugged into the non-responsive USB slot the light on the drive blinks a couple times, the platters spool up for 15 or so seconds then goes out.
When plugged into the other USB slot (the one that goes "Dunn...") the light comes on and stays on and the platters spin untill I unplug the device. But it's still not recognized.

Nothing shows up under the Disc Management tool either.

Normal USB thumb drives work normal still.

A:Both USB ports on laptop suddenly stopped working

This procedure USB Selective Suspend - Turn On or Off has helped others with issues similar to yours.
Try it and see if it helps. You would want to turn the feature OFF, or disable.

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There is some problem with my font USB ports. All was fine until yesterday when they stopped working. I havent made any hardware change. Installed windows 8 but that was last week.

I connect my Logitech Gamepad, the LED switches on but it doesnt show up in the control panel, works when connected to the rear USB port.

Please help..

A:Front USB ports suddenly stopped working

You might have to open up your case, trace back the cable, and re-plug it. It could be detached, or the USB controller on the front ports could be fried somehow too.

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the usb 3.0 stopped was working fine but last week both stopped working. i have checked drivers, but that dosent seem to be the problem. they can charge my phone but dosent decect it or anything else. the usb 2.0 port works fine as usual

A:Lenovo Y50-70 USB 3.0 ports stopped working suddenly

hi haemming,
Welcome to the Forums.
Can you try the following:
1. Boot into the BIOS by continuously tapping F2 on boot-up. Once in the BIOS, hit F9 to load factory default settings then hit F10 to save and exit (this reloads the hardware configuration of the machine). Once inside Windows, uninstall the USB 3,0 driver (Device Manager > Universal Serial Bus Controllers) then scan for hardware changes.
When the USB device comes back, try to test your phone or any USB device (e.g., USB mouse, flashdrive, etc.) and observe.
2. If same problem, try to power down the machine > press the OneKey Recovery button > select System Recovery and test if the mouse will work on the USB 3.0 port
 - Sample image
Alternatively, you can also hold the Shift key then restart Windows and observe if the USB mouse will work on the Windows 8 Advanced Options.
If none of the above method works then I recommend you contact the lenovo helpdesk and report your findings as the USB 3.0 port is definitely malfunctioning and requires service.
Support phone list
Let me know how it goes..

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I have a 32GB USB 3.0 pqi flash drive and it used to work on USB 2.0 ports just fine. I don't know why but it suddenly decided to stop working on USB 2.0 ports (still works on USB 3.0).

USB 3.0 port is not faulty.
USB 2.0 port is not faulty.

How do I get it to work with USB 2.0 again?

A:USB 3.0 pqi flash drive suddenly stopped working on USB 2.0 ports

I would copy the data off and store it someplace if possible. I would take USB 2.0 not working as a warning something may be breaking down in the drive. It might only effect USB 2.0 but it's difficult to be sure.

I'm not a hardware guy so I'm not sure if you can test them with a multi-meter.

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okay so 4 days ago i had downloaded some music, synced it to my device (absolutely no problem at this point), unplugged device, realized i wanted to add another song, then replugged,trying all of my 4 usb ports to find out they were receiving power but were not recgnized by my computer (they didn't show up in "My Computer" folder, but say i had my mp3 player still plugged in and it was charging so I knew there was power getting to the device my computer was just not recognizing it. so after reading for hours on various websites, including tech help forums and pages with people claiming to know everything about everything, clearly they DO NOT, and i visited the microsoft support page, running all of those "fix it" programs that microsoft offers.

I began to think my firmware needed updating as well as my BIOS (once again not the issue). I even did the whole turn your computer off and unplug it for a few mins to reset the mother board or whatever, once again NADA!

So i found myself frustrated all weekend long trying to figure this out even being on the verge of calling the computer repair place and taking it in so i didn't have to deal with this mess anymore because in my opinion having some professional fix it in like 20 mins versus my 4 day affair with the damn thing seemed more reasonable even if it would cost me money it wouldn't cost my sanity! so i had my brother (who knows more about computers than i do) look at it and he immediately... Read more

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This morning, I found that my USB ports are not working. Any ideas on what is wrong? In the Device Manager I see USB drivers for the bluetooth and camera, but nothing for the ports - should there be? This only out of ordinary thing to occur was that I left the PC on and unplugged last night, and the batteries ran out. Help, I cant connect my iPhone!

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I have a Yoga 900 13ISK2Yesterday my usb ports stopped working (the charger still works) I updated the BIOS and they worked again for about 4 hours, then stopped again. Can you help?

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So, as the title suggests, all the ports on my Lenovo Yoga 900 have stopped reading any outside device. I went into device manager and the usb ports don't show up anymore under the Universal Serial Bus controller tree. The only device that stills works, thankfully, is the charger which plugs into the special usb port. If anyone knows a solution i would be grateful, thank you.

Btw sorry for the quick post i am writing this on my phone. I can provide more specs for the computer if needed, also i am running Windows 10.

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I unplugged the cable to move my ultrabook, plugged it back in and now the connection with the external monitor is completely dead and won't come back, any chance its something other than the USB C port being broken? It worked fine for 48 hours.

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All drivers are fine. I have tried disabling and enabling & reinstalling HID touch screen drivers but it didnot work. I have also reset the PC . But i didn't fix. I dont think its a hardware problem. Any solution??   

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The title says it all. I'm very frustrated with this problem since I really need to connect my laptop to an external monitor for work. I've read and tried all relative topics in this and intel forums (e. g: https://forums.lenovo.com/t5/Lenovo-Yoga-Series-Notebooks/Yoga-920-can-t-connect-to-any-external-mon...), have done all steps mentioned (including firmware, bios and windows update, windows reset, ...) but the problem still persists. Apparently, most users that had faced the same problem been able to get it worked after installing "Type C Firmware for Windows 10 (64-bit)" or the BIOS update provided by Lenovo. I installed them successfully but nothing changed. I am sure it is a software issue since there is no sign of any hardware one (all devices are fine as device manager shows and diagnostics app found no problem). It was just working fine until suddenly stopped working (probably after some recent windows update). I would greatly appreciate any help.

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Vista Ultimate 64-bit, ASUS Rampage Formula motherboard, USB mouse and keyboard connected in back ports.

Two things happened: Avira antivirus warned me of some threats which I either ignored or deleted. Windows Update had some updates ready (although I'm not sure if it updated).

I turned off my PC for a couple of hours, turned it back on and realized that my USB keyboard was not working on the password screen.

I eventually unplugged it from the back and plugged it into the front, where it worked. However, my USB mouse did not work when plugged into the second front port, nor did it work when plugged into the front port in which the keyboard worked.

I accessed System Restore using my keyboard and restored to one day previously. When it finished, both keyboard and mouse worked, although I got a pop-up message alerting me that the "drivers for your device could not be installed." When I clicked "OK," the mouse stopped working again.

I have checked BIOS and both mouse and keyboard are recognized, so it does not appear to be a hardware issue.

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My Yoga 11e will suddenly not connect to any monitors (including the one it's been connected to for a year). The display settings consistently show "Didn't detect another display".YES I HAVE ALREADY GONE THOUGH ALL THE SIMILAR POSTS ON THE FORUM. * Yes, I have already tested the monitors and cables to verify they work.* Yes, I have already tested it with different monitors.* Yes, I have updated all my drivers.* Yes, I have used the Lenovo update software.* Yes, I have already removed the graphics driver and reinstalled it.* Yes, I have already done Windows troubleshooting - including reinstalling Windows. Based on the Lenovo website, there seems to be no way to actually speak to any sort of tech support, so I'm stuck resorting to this. Is there anything else I can try BESIDES THE ABOVE that might work, or should I just chuck this computer in the garbage?

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I dont know why but my external hard drive isnt showing up when connected.. Windows makes the connection noise when I plug it in but it dont show up in disk management, device manager or anywhere else... If I plug it into a regular usb port it works fine... And its a usb 3.0 capable drive it worked before....any thoughts guys?" I tried the new hardware wizard in device manager and didnt see anything... drivers all look fine....

A:usb 3.o ports suddenly not working

Originally Posted by vafangool

I dont know why but my external hard drive isnt showing up when connected.. Windows makes the connection noise when I plug it in but it dont show up in disk management, device manager or anywhere else... If I plug it into a regular usb port it works fine... And its a usb 3.0 capable drive it worked before....any thoughts guys?" I tried the new hardware wizard in device manager and didnt see anything... drivers all look fine....

I would go to Device manager and determine which USB 3.0 driver you have installed? Win 8 has a native USB 3.0 driver, if your on win 7 download the latest driver from the vendor. Then Uninstall the USB 3.0 Host driver. Reboot and install the latest driver you downloaded or If Win 8 the driver should auto install to the default.

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Good morning. Suddenly, all usb ports stopped working. The first indication was the mouse not working. Changed the batteries, no change. Tried all other usb ports, still not working. Mouse worked on another laptop just fine. Tried flash drive, didn't work on any port.

Running Vista Home Premium on a Toshiba Qosmio.

Like I said...SUDDENLY.

Anyone have a clue?

A:USB ports suddenly not working

hi and welcome to TSF can you go to device manager and check for any yellow ! or red x thats from start control panel and in classic view device manager then to universal serialbus controllers click on the little + to expand the view

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After an automatic windows update my computer (running Windows 8.1 64-bit) suddenly lost connection to my external monitor. I tried connecting to the tv with another cable and it didn't work either.I uninstalled the latest update and it didn't work. I tried doing a system restore to a few days earlier and it didn't work. Then I updated the BIOS and it suddenly started connecting again.The problem is the next day it stopped connecting to the monitor again. This time I couldn't update the BIOS because I already had the latest version. And even if I could I shouldn't be having to do that.What can I do?

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Recently, I tried to connect something to a USB port, but they suddenly stopped working. I thought it was just the front 2 that were the problem, but then I tried to use my printer and since it's plugged in the back I thought the 2 USB ports in the back would work, but there was not connection to the printer. Now all 4 USB ports don't work. The wierd part is that when I try to plug in a USB jump drive, a light does blink on the jump drive for a split second so it seems like there's still power. I've uninstalled the USB stuff in device manager and rebooted, the computer does recognize the ports and said they were working properly, but the devices I plug in still don't work. Is there anything else that can be done about this problem? I know my jump drive and printer still work.

A:USB Ports Suddenly Stop Working

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On the last few days , my PC was still able to open the ports after I forwarded them through the Modem Settings in Chrome browser.
I was able to enable UPnP for the purpose of the VPN program called Tunngle . Everything just worked fine , I had no problem since the first day of Year 2015.

I didn't touch my PC for few days until today , all of my forwarded ports suddenly don't work . Every ports are still enabled in my Modem Settings and the IP Address is still correct as I use a static IP ( But when I tried to test the port , it says failed.
Even the UPnP doesn't seemed to be working too as the Tunngle now indicates an error saying there's problem with the UPnP.

I got frustrated about all of the sudden that the ports don't work anymore.
I've searched for solution from day to night but nothing solved because my problem seems to be a little more strange.

[ Information ] :
- Only my PC are connected to Modem through cable , and other one such as Mini Ipad is connected through Wireless.
- DMZ = Disabled
- My Modem Model : D-Link DSL-2750E
- Using Static IP :
- Windows 7 Ultimate 64x
- Using Norton 360 Antivirus

[ Things I had done but no luck ] :
- Disabled Smart Firewall and the Antivirus Protection on Norton 360 Antivirus
- Added rules for ports in both Inbound and Outbound Rules inside Firewall Advanced Settings.
- Did the CMD stuff such as " ipconfig /release , /renew , /flushdns , /registerdns , netsh winsock , etc. &q... Read more

A:Forwarded Ports suddenly Not Working

Is the UPnP service running? Not exactly sure which ones but I guess you can check UPnP and SSDP.

How to enable UPnP in Windows.

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Hi guys,

My NEW PC's two front USB 2.0 ports suddenly don't work. It was OK when i first installed Win 8 on it, but since window update, the front ones just don't work anymore. I couldn't charge my phone using USB & the external HHD just keep flashing & beeping (no power source apparently upon googling). What happened? I didn't think i changed anything? Why suddenly stop working then? How can i troubleshoot? Would hate to bring the whole PC down to the local shop due to such minor issue. Appreciate your input. Thanks!

A:front USB 2.0 ports suddenly stop working

since it happened right after an update lets try to bring the computer back in time when it did work, please follow this guide: http://www.bleepingcomputer.com/tutorials/windows-8-system-restore-guide/

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So one day I was using a laptop wirelessly when the internet just suddenly turned off. I checked my modem and it was working fine but when I checked my router, the lights were on but not blinking. it was just a steady light. when I checked for a wireless network the name of the network I usually use didnt show up.

I tried unplugging everything and plugging everything back in again and I tried pressing the reset button on the back of the router. Can anyone help?

Thanks so much

P.S. my router is a linksys WRT300N Wireless-N Broadband router

A:Wireless router suddenly stopped working (Lights still working though)

what devices do you have connected the router anything else wireless
make and model of the pc

does the PC work if you connect to the router by a cable ?
if not
try connecting directly to the modem and see if that works OK

we need to see some details, which will mean you need to copy to a working PC
{run Xirrus Wi-Fi Inspector} Download and install
If you cannot access the internet with this PC, then you will need to copy the program across to the faulty PC

Direct link to the program is here http://www.xirrus.com/library/wifi_download_redirect.php
Then run and install the program
if you get an error - You need NET Framework installed for the WiFi Inspector to function.

Run the program

post a screen shot of the program running - if there are a lot of networks showing can you click on "networks" top lefthand area - so we can see all the network information, and also post which network "Adapter Name" (1st column) is yours on the list

To post a screen shot of the active window, hold the Alt key and press the PrtScn key. Open the Windows PAINT application and Paste the screen shot. You can then use PAINT to trim to suit, and save it as a JPG format file.
To upload it to the forum, open the full reply window and use the Manage Attachments button to upload it here.
----------------------------------------------------------------------... Read more

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Hi everybody, I was updating my drivers on my xp desktop, suddenly the devices attaced to ports stopped working. I assume I was downloading a usb port driver ets I cannot remember. Now none of my ports are working (4back and 2 front) I have done the usual device manager check which shows two standard openHCD USB Host Controllers and two usb root hubs, I have tried to uninstall them and reboot (after turning off system restore) no use my pc does not recognise any device connected to the usbs. Checked BIOS nothing obvious. I am considering downloading a new motherboard driver install. Can anybody help me please. Thanks.

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I have a new Dell Dimension E521

It runs on windows vista. Last week all of the usb ports stopped working, including front and back. I've never had this problem before i have no idea what it would be. Can anyone help me?

A:USB Ports Stopped Working

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My front and rear USB 3 ports stopped working. The rear USB 2 ports still work. When I plug an external HDD into the front USB 3 ports it powers up the drive, but it isn't recognized in Windows Explorer. My USB card reader doesn't light up. Device Manager doesn't show any USB 3 devices, and nothing is showing a yellow x in Device Manager.

Any ideas? The last time I used the front ports was a few weeks ago at most. There have been Windows 10 updates since then, but I don't know specifically when they stopped working.

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Nothing I plug into any of my usb2.0 ports will work.

I get the message 'USB Device Not Recognized - One of the usb devices attached to this computer has malfunctioned, and Windows does not recognize it. for assistence in solving this problem click this message'

Clicking this message inevitably didnt help.

This has only happened today, and I only noticed it after installing Daemon Tools v4.0 which I have now uninstalled which hasnt solved the problem. This could of course be a coincidence.

Can anyone suggest anything I can try? Let me know any information you need and I will post it.

Thanks in advance


A:USB Ports stopped working

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my notebook 15 USB port stopped working but they still providing power that i can use for charging. how can i fix the problem?

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I am running Windows XP SP3 on a HP Compaq NX6325.

A month ago I got all 3 of my USB ports stopped working. Device Manager shows each USB Host Controller and the corresponding USB Root Hub as working correctly.

I can uninstall the USB Root Hubs, but the 3 Host Controllers will not allow me to interact at all, i.e. I when I try to update the driver, disable it or delete it then the window freezes until I stop the process.

I have updated the BIOS to the latest from the HP website and made sure that USB is enabled.

Searching the web I have tried a few driver check programs, all of which says nothing about upgrading the USB.

One thing to mention.... from the MS website it states that USB usualy uses IRQ 9 whereas my USB Controllers are on IRQ 19.

Any help gratefully received

A:3 x USB Ports Stopped working

You cannot update...USB controller drivers, those are installed by Windows. If they are damaged, updating won't necessarily overcome that.

Go to Device Manager...ignore the hubs, uninstall each controller...reboot.

FWIW: General USB Problems in Windows XP - http://support.microsoft.com/kb/310575

You might also try Microsoft Fix it Center Online - http://fixitcenter.support.microsoft.com/Portal .


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I have a Dell 8700 and during a session loading music from iTunes, all USB 2.0 and 3.0 ports stopped working.  I tried rebooting and powering down and pulling power to no avail.  When I boot the computer, the lights on the Logitech keyboard/mouse wireless controller go on but as Windows 10 starts, they go off.

I can work with the computer because I have TeamViewer running.

I have a Dell 8700 running Windows 10 (Creators update). While transferring music to my ipad all USB ports suddenly stopped working, USB 2.0 and 3.0. I tried rebooting, shutting down and unplugging power for an hour but no help. I have a wireless Logitech mouse/keyboard. When powering up, the lights go on on the wireless controller until Windows 10 starts booting and then they go off. Any ideas on what the problem is? No yellow dots next to any of the USB items in the device manager.

I have a Dell 8700 running Windows 10 (Creators update). While transferring music to my ipad all USB ports suddenly stopped working, USB 2.0 and 3.0. I tried rebooting, shutting down and unplugging power for an hour but no help. I have a wireless Logitech mouse/keyboard. When powering up, the lights go on on the wireless controller until Windows 10 starts booting and then they go off. Any ideas on what the problem is? No yellow dots next to any of the USB items in the device manager.

I have a Dell 8700 running Windows 10 (Creators update). While transferring music to my ipad all USB ports ... Read more

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I have the HP envy 23 all in one touch screen, the USB ports stopped working a few days ago. Everything worked fine last week. Anytime something was plugged into the USB port it was installed like it should with whatever pop-up came up, and it was disconnected properly as well. Does anyone know what I can do to get this issue fixed? I remember having to go through this before around 5 months ago and it seems like the support team deleted the USB list and then it added back when I restarted the computer.Any help is appreciated.Thank you!

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The USB ports on my friend's laptop (HP Pavilion DV6000 running XP Home) randomly stopped working about a week ago. He hasn't made any changes to the system in some time. When you plug in a USB device, it gets power, but the computer doesn't recognize it. Here's what I've tried so far:

- Uninstalled all USB drivers from the device manager
- Unchecked the "allow computer to turn off this device" option under power management
- Installed newest version of the nVidia cihpset
- Made sure that USB is enabled in the BIOS
- Tried a registry fix found here - http://forums.techguy.org/hardware/673766-usb-ports-suddenly-stop-working.html

Unfortunately, nothing has worked. What worries me is that I also tried using an Ubuntu live cd, and no USB devices were recognized there either. I'm thinking that this might be a hardware problem which can't be fixed, but does anyone have any ideas on what to try before I declare this problem unfixable?

A:USB Ports Stopped Working


have a look here: http://forums.techguy.org/hardware/689550-usb2-problem-win-xp.html

I also tried a live Linux cd (Puppy)

Hope this helps


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The port that doubles as the powercord port does allow my battery to be charged, but it does not power any other devices that use USB connections.  Does anyone have any suggestions? solutions? 

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I have a E1-570. Today when i turned on the pc, something weird happened. Two of my usb ports stopped working. I tried to update the drivers but everything was up to date. Is there a way to fix the problem? they worked until this morning. 

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I have a problem with my desktop PC. The USB ports are not working so I can't use my keyboard or mouse.

I'm not sure if it has any connection with this, but today I tried installing a SSD to my system with no luck. While doing that, I set the BIOS to AHCI as I read that would be the most optimal. Well, I kept getting errors trying to install Win7 to the SSD so I decided to save it for a later time. Then I turned off my PC, unplugged the SSD and plugged my HDD back in. On boot up, I entered BIOS and set settings to default. After this my USB ports stopped working..

I have tried turning off my system, unplugging the powercord and the CMOS battery for at least 15 minutes with no luck. I have also tried plugging my keyboard into every single USB port my PC has. I can't even enter BIOS or press F8 to enter safe mode now. Any suggestions? I'm using WinXP and my motherboard is a Gigabyte GA-870A-UD3.

A:USB ports stopped working

Borrow or purchase a ps2 kb. Enter BIOS and enable USB KB/Mouse. I'm not sure it is called exactly that, but it is something similar that you will be able to find. I too have a Gigabyte motherboard (older than yours even) and have had problems with it liking USB kb inputs until I explicitly set that in the BIOS. What is weird is sometimes USB will work if that isn't set, or sometimes it will half-*** work, as in I could get into the BIOS or force the boot selection menu, but then the kb wouldn't work.

So bottom line is, I know what you are describing, but I don't know of a good fix, outside of just acquiring a ps2 kb which will get you out of this situation 100% of the time.

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This morning ALL of my USB ports stopped working. If I plug something into them I get an error message saying "One of the USB devices attached to this computer has fmalfunctioned, and Windows does not recognize it." I have gone into device manager and now exclaimation points or anything. When nothing is plugged in the Root hubs show working correctly. When I plug something in and check it I see Unknown Device- then click properties and get "No drivers are installed for this device"

Why would my drivers disappear. I have tried my wireless mouse, my printer and my iPod. nothings works. I did a system restore, that didn't help.

Hope someone can help!

My computer is a laptop- Acer Aspire 9300 Using Windows XP

A:USB ports have stopped working

Well, for now the problem is solved- I shut the computer down, UNPLUGGED it, waited about 10 seconds then plugged it back in and rebooted! Works perfectly now!!

Hope this helps someone else!! I just spend 4 hours trying to figure it out!!

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Hello I'm new to this so I'll try my best to explain the problem. I have a wireless mouse that stopped working, the problem is when i plugged the wireless receiver in the USB port, the computer says "found new hardware" and hardware is installed and ready to use. The mouse works for a couple seconds but then after that they stopped moving, after I restarted the computer, the mouse still stands in the center on the screen, so I tried a different port the same thing happens and if I use the the USB port already the mouse won't even move for a few seconds. Its not the mouse's fault because I asked my neighbor to borrow his mouse(which is USB plug mouse) and the same thing happens just like my mouse. I tried to to see if its the USB devices' problems but I use my flash drive and it works so its not USB device's problem so I'm wondering if some one could help me with this problem.

A:Usb ports stopped working

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I plugged an old USB TV tuner stick into my new laprtop to see if the TV tuner was still working. There was no response from a previously working USB port in the laptop so I took it out and put it into the neighbouring port. Now both ports do not respond to anything.Are there fuses built into laptop USB ports that could have blown? When I go to Device manager and do the usual diagnostics and try to uninstall the bus controllers, the uninstall `in progress` window pops up, but then nothing happens.I have to ctrl/Alt Del to get my laptop back.Does uninstalling bust controllers take a long time??

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