Lenovo T400 / T500 :: T420s (4170-CTO) Windows Unable To Recognize Network Controller
Jul 19, 2013
I have been running ubuntu on my T420s for about 2 years now. Needed a Windows box to work from home so I installed Windows 7 Home Premium - Service Pack 1 on it. Installation went smooth but Windows did not recognize my wireless card, preventing me from connecting to the internet to download and install the rest of my drivers. I tried to manually install the Intel Wireless Lan (bg, abg, abgn) for Windows (64-bit) Centrino Advanced-N 6205 which is what I thought was installed on my machine to no avail.
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Feb 14, 2013
I installed Windows 8 x64 recently and installed all the drivers. I was pretty sure that all the devices were installed.I was having a hardware power management problem before installing Windows 8 that I was hoping was a software issue that reinstalling the OS would fix. Turns out it wasn't software, but had to have the main board replaced under warranty. Even after the main board replacement, I was still pretty sure I saw all the device drivers were installed under device manager.
I'm noticing an "unknown device" listed that doesn't have a driver installed. I know often these can be the TPM or other system device, but I have the TPM installed as well as the chipset software and power management driver. But there is still this unknown device.The only clue I have as to what the device could be is under details, the "hardware ids" property value is "rootsscbfs_storlib_bus3". A Google search brings up nothing for this string. "STORLIB" makes it seem like it has something to do with storage, but I have the Intel RST driver (11.7 from Intel) as well as the card reader driver installed. I can confirm the card reader is functioning fine too.
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Jan 3, 2012
I want to run a Virtual PC in VirtualBox and get the message, that I need to enable VT-x. I have updated to the newest bios (1.31) but i still don't have the option to enable "Intel Virtualization Technology" under the Config --> CPU menu.
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Nov 16, 2013
We installed a Kinston 240 GB SSD in the Ultrabay, and it is not fully recognizing the SSD - it does not show up as a device, though we know the machine knows it is there, and we could use Linux and ghost to it..
We then ghosted to it with no issues. We then put it in the main bay, but it would not boot.
We looked at it from the USB port of another computer, and the files looked fine. Are we missing a driver?
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May 29, 2012
Lenovo T420s is randomly crashing. There is nothing special in the Event Viewer. Only that the PC was not turned off properly. Not exactly BSOD.
Error video on YouTube
Usually happening under some load (eg. game) but I have seen the same running only MS Office. No Macros or special calculations.
I would say this happens due to overheating. This is my second T420s I have same problem with. I work as 2nd. lvl IT so I know other colleagues are experiencing the same.
Frequency decreased once performance settings in power management were switched to balanced mode. Not solved though.
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Mar 30, 2008
Does the Microsoft Window's 7 installation CD automatically recognize the mSATA and the Optimus in conjunction with the Intel HD 4000 as well as the fingerprint reader for login? Or do I have to download the drivers and install ExpressCache separately off of Lenovo's website... trying to stay clear of Lenovo drivers that might conflict with Intel's and NVIDIA's.
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Jun 7, 2013
I have a T420s that I bought a couple weeks earlier, it's a used one, so there's no warranty with it, I used it several days without any issue, I don't use it very frequently as I use my corporate one most of the time.
Someday when I wanted to turn it on, it stacks on a black screen and it beeps one beep then two other, nothing showing on the screen not even the thinkpad logo at startup, I thought it was a RAM related issue so I put the one from my corporate PC but without any luck, so I wanted to see if its graphic controller issue, I plug the VGA cable on the laptop and my TV and here I can see the thinkpad startup logo but after that I see a message on the screen telling :
"Real Time Clock Error - Check Date and Time settings. Press Esc to continue or F1 to enter setup" and when I press either one nothing happen at all, still stacks there.
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Aug 2, 2014
I have a t420s and so far I'm happy with it.Recently I purchased a MC7700 card from ebay with lenovo FRU. Everything looks smooth except that I found there is no way to turn on the mobile broadband switch.i believe I have a whitelist-removed bios otherwise it won't boot. The driver downloaded from lenovo website is installed fine, I can see the card working in device manager. I could read the iccid in windows network settings. Everything looks good, but I just can't turn mobile broadband on.
My laptop runs windows 8.1, I heard there is a thinkvantage connectivity tool that might work for windows 7 but not windows 8. I have quite a few files on my laptop and going back to windows 7 is the last option I would like to try.
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Dec 10, 2013
I need to do a recovery on a T420s. I want to recover to same state as out of the box. I already backed up all the data. I am using the disc provided by Lenovo but cannot seem get the disc to start the process. I think I set the DVD as the first boot device but it goes right past it and into the normal start up process.
Is there a way to start the process besides from boot up?
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Aug 21, 2014
My 5 months old SSD crashed and I replaced it with a Macrium created mirror. Everything seems to work except the computer no longer recognizes USB drives. The USB drives are good (checked on other devices), I've removed and reinstalled all USB hubs and drivers - the chip drivers and bios are up to date and the USBs are enabled in the BIOS AND I've done several virus scans (online and local) in safe mode (Malwarebytes, Spybot, ESET, Defender, AVG, Housecall). The USBs are recognized on boot but once Win7 boots the USB for storage devices no longer work.... however, the USB recognize keyboards and the mouse. Guessing a new OS install will fix it, however, I would rather not reinstall everything.
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May 26, 2011
I bought a Roline DP to HDMI cable hoping to be able to watch HD content in my livingroom and not having to plug an extra audio cable as DP should carry sound too.
When I do the same as on the youtube video, I get the following settings in the control panels: [URL] ....
But there's no sound coming out of the TV. I've tried it on my SyncMaster PC/TV Screen and on my Samsung TV in the living room. On the TV in the living room, the windows audio manager shows the device, but it cannot be selected as show above. It stays grey.
I've got a T420s with discrete nVidia Optimus graphics (Quadro NVS4200M). Driver version is 1.2.19.0 for nVidia HD-Audio and 8.17.12.6696 for NVS 4200M. This information comes from the device manager. I installed my system from scratch and used ThinkVantage System Update 4.
Where the problem comes from? I could only imagine that the cable isn't capable of carrying audio, but that seems rather illogic, does it?
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Nov 28, 2011
Is there a small/free application for download (preferably one that doesn't require going through installation process) that shows how each Windows applications accesses the internet, transfer rates and amounts of data being transferred?
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Jun 13, 2008
Audio stutters when using bluetooth connection to my BOSE speaker (from Spotify). Has started lately. Cable works perfect. I use Thinkpad BLuetooth 3.0 version. Conexant 20672 Smartaudio HD.
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Dec 18, 2014
I have a Lenovo t420s with dualboot win7 and Ubuntu. I never had any problems until now and could switch on/off my wireless and bluetooth connections via the Hardware Switch (right bottom left of the notebook) or via FN + F5.
However, without any specific reason the wireless and bluetooth was switched off and the the system tells me that I have to switch on WIFI via the Wireless Radio Switch. However, although I can move it, it doesn't make any difference for the Switch.
I tried to reset the BIOS to Default and changed the network settings, and also rebooted several times. I won't work with any of the two systems.
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Aug 20, 2009
I have just installed Windows 8 onto my T510i but I am unable to control the Bluetooth Radio. It seems to be constantly on.
If I press FN+F5 nothing happens (not even flight mode)
I have downloaded and installed all the drivers and software that I can from the Lenovo support website. Is there any thing I can do so that I can turn the Bluetooth radio on and off....
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Feb 13, 2013
I just bought ThinkPad T430 and optical bay adapter IB-AC642 [URL] for my ssd 128 OCZ VERTEX 4. I put ssd into optical bay but thinkpad doesn't recognize it. I try with different disc but I have the same problem.
My optical bay adapter with this sdd OCZ VERTEX 4 is working in my another laptop so the problem is only with thinkpad. I tried to change bios settings but it didn't work.
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Jan 31, 2015
my new T440p with built-in WWAN Ericsson N5321gw doesn't recognize the SIM-Card. I'm running Win7 64 Bit and in the device manager, I can see the Ericsson device showing up without any errors. Once I launche Access Connections, I receive the error message there's no SIM card inserted and I should insert the SIM and try again. The SIM is inserted as shown next to the slot (although I tried other ways, too). I tried two different SIM-cards just to be safe, both SIM-cards are working in my phone.
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Oct 25, 2014
I've got a ThinkPad T520 and I just bought a Netgear N600 Dual-band Cable Modem Router but my laptop isn't seeing the 5GHz wireless network? Is it even capable of doing so?
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Aug 6, 2014
Realtek 2x2 11b/g/n wireless LAN M.2 adapter does not detect my home 5ghz network. Driver (version 2012.10.224.2014) is up to date. 2ghz band works fine. Could it be that 5ghz is not supported by this $2k laptop?
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Jun 8, 2014
I have a brand new T440 which I am populating and customising.I created a new partition on the HDD using MiniTool Partition Wizzard. That may have created the problem - I can't create the recovery media. I get a message that the files are not there. I should have done it before partitioning - too late now.
However, using the Partition Wizzard, I can assign a drive letter to the Recovery partition, and it becomes visible in Windows Explorer (File manager). I can copy the content on an external HD drive.
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Feb 26, 2013
My new T440s sees my home networks yet won't connect with passwords that absolutely are correct. Running Windows 7 (64-bit) Pro, everything is updated.
Also, it won't even connect to an open network.
This is bizarre...and makes the machine nearly useless.
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Mar 22, 2009
I have turned on full screen magnifier via Fn+Spacebar. But doing the same again does NOT turn it off. Is there a workaround?
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Dec 19, 2010
I have a problem with my microphone mute button on my T410. It does not mute the microphone when pressed. I verified this by opening the Sound settings in Control Panel and the fact that the amber light doesn't come on to indicate it is muted. When I mute the microphone through the Control Panel Sound option, the light does not come on either.
This started happening after a reinstall of Windows. I made sure to install all the software and driver updates using the Lenovo Driver and Software update tool. I also individually downloaded and installed the Conexant drivers, too.
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Jun 14, 2014
I recently bought a reconditioned Lenovo T410 and have to perform certain actions to get myself set up. One of these was to create factory recovery discs using Rescue and Recovery.
As this wasn't already installed on the machine, I have downloaded it (tvtvrnr4.52_005en.exe) but it won't install. I am getting the message 'Error 25014 There was an error installing the Rescue and Recovery boot manager. Return code: 6'. How to resolve it or an alternative way or creating recovery discs?
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Feb 14, 2014
I just got a new Thinkpad 540p but it can't consistently connect to my home wireless network. Since a day of getting it, it was able to connect on 3 separate occasions. One being the one during the initial set up which was fine. But after that it will resort to a limited access state after a few minutes as well as with the other instances that I was able to connect. The same thing happens if I try to restart it right away after connecting. It goes to limited access. If I disconnect and try to reconnect, it won't allow me to. It prompts me to a troubleshooting step which did not work at all. I've been trying all day and night to look up solutions but with no clear one ....
This one runs on Windows 7 btw.... The wireless adapter is just a 2x2 11b/g/n wireless lan m.2 adapter... updated drivers and everything. Also, none of our other devices such as mobile phones and an HP desktop have problems connecting.
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Aug 21, 2013
I bought this laptop for my son to use and like many, he didn't care for Windows 8. So, I downloaded the drivers for the laptop and then did a clean install of Windows 7 Professional. I have been unable to find a driver that will work for the Network Controller. The drivers you can download on the Lenovo site do not work. This computer is useless to him unless we can get the wireless working.
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Oct 26, 2014
I can't adjust my screen brightness using the Power Manager. Updating to the latest release of the ThinkVantage Communications Utility did not solve the issue. I can't make the screen either brighter or dimmer.
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Aug 7, 2014
I bought a ThinkPad 540p that comes with preloaded Windows 8.1. As I want to dual boot the machine I tried to select the Legacy Boot option in the BIOS/Startup tab, but I can't do anything as the option UEFI/Legacy Book is greyed out and locked in "UEFI Only". Below it there is an option called: -CSM Support that is also greyed out and selected as [No]. (below these options there is a little note with an asterisk saying "Unselectable for Secure Boot").
How can I enable the UEFI/Legacy Boot option again in order to dual boot the computer? I want to be able to boot from USB or from the CD Drive.
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Jul 7, 2014
I have purchased hp pavilion d107tx with DOS and now I am unable to find Network Controller Drivers because of which I am unable to use Wi-fi on my laptop. How to find the right drivers for my laptop.
Product - hp pavilion d107tx
O/S - Windows 7 Service Pack 1 64 Bit
Device Hardware-
PCIVEN_168C&DEV_0036&SUBSYS_217F103C&REV_01PCIVEN_168C&DEV_0036&SUBSYS_217F103CPCIVEN_168C
&DEV_0036&CC_028000PCIVEN_168C&DEV_0036&CC_0280
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Jan 26, 2012
I have tried to make a fresh Windows 7 installation, but after installing updates via Lenovo System Update the system gets corrupt.I replaced the hard drive on an T400 and loaded a image that I had on to the drive. After a installing a few updates and program I noticed strange system beaver. So I did a system file check and it came back that files was corrupt and cold not be repaired.So I did a new fresh Windows install. But it to became corrupt after just running Windows Update and Lenovo System Update.So I ran some hard drive and memory diagnostic without find and problems.
Then I did a new Windows 7 install again. After I installed all recommended updates from Windows Update I did a system file check, all OK. The I installed Lenovo System Update and all its recommended updates and did a new system file check, Windows system files corrupt. What Lenovo update is destroying the system?
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