Lenovo T400 / T500 :: T440s Windows 7 Pro Loses WiFi Connection After Sleep 7260AC
Feb 6, 2010
I keep having issues waking up from sleep with my T440s. It WILL NOT connect to wifi and the wireless adapter under windows adapter settings disappears. Only thing that fixes this is a reboot. I have removed "allow windows to turn this device off" under wireless settings.
Driver: 17.12.0.4
Dated: 28/08/2014
Software: Lenovo Access Connections
I do not use windows to connect to WIFI. I have dedicated profiles for each of my wifi networks at home and work.
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Jan 19, 2014
I got a new T440s about 2 weeks ago and sometimes it doesn't wake up after it goes into sleep mode. It gets stuck on a black screen and the mouse cursor is visible, but moving the mouse or pressing keys on the keyboard fails to wake it up. When this happens, I have to restart the computer by holding down the power button for 10 seconds. I am running Windows 7 Professional 64 bit and hybrid sleep is off. I'm just really confused because sometimes it wakes up perfectly and sometimes it doesn't.
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Oct 30, 2014
Some times when I resume laptop from SLEEP, wireless are not working...
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Jun 19, 2014
I have owned a T440S since late 2013.
Relevant Details:
T440S
Model : 20AQCTO1WW
OS : Windows 7 professional (original installation by Lenovo)
Latest Drivers installed as of June 2014 - including HotKey and Power Management
HotKey ver : 8.30
Power Managment : 6.65.1
Since receiving this laptop, OSD birightness control has always failed to work, i.e. does not appear on the screen when using the Fn+F5/F6 key combination nor does it control actual screen brightness AFTER FIRST resuming from sleep mode.
Sequence of steps that demonstrates the above symptom:
1. OSD brightness works fine after reboot
2. Putting the machine to sleep (I do not use hibernate) for a duration longer than a few minutes
3. Open lid the first time, hit Fn to resume machine
4. Pressing Fn+F5/F6 key combo does not display the brightness slider nor does it control brightness
5. Closing the lid and opening it again, causes OSD brightness slider to flash briefly and is now fully functional using Fn+F5/F6 keys
Your tech department should easily be able to re-create this issue on any stock T440S/Win7pro machine, as I have seen others comment about this very issue across other T440/OS variants.
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Feb 26, 2014
I'm not sure if any other user has experience this issue. I did a lenovo update couple weeks back and since then my wireless adapter would not work after waking up from sleep mode. It shows that the wireless adapter is connected to wireless network but the internet would not work. The only way i can make it work is by disabling the wifi adapter by putting the laptop in airplane mode and then bringing it back out from it. Disabling and enabling the wireless adapter does a quick fix and does allow me to use the internet without any issue for the time being. i have also uninstalled and reinstalled fresh drivers from lenovo website, still having the same problem.
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Sep 24, 2014
When I connect the USB 3.0 dock to my T440s, I then cannot get the second LCD monitor to be recognised by Windows via the USB3.0.
The monitor is not being recognised as it is is not seen as one of the optional displays in the 'Intel HD Graphics control panel' window.
The driver however for the second monitor is fully up to date and it works fine when I connect the LCD to the VGA port directly on my computer. Also the second monitor is being recognised partly by the windows OS as it comes up as a second screen under the 'screen resolution' window.
My set up is shown below. I am thinking that perhaps there is an issue with either the NVIDIA or Intel HD graphics chip. I read somewhere that windows uses one or the other depending on the load. I am worried that there is some problem with that mechanism. All driver are up to date.
System Unit
Nvidia GT730M Graphics without docking connector
Processor
4th Gen Intel Core i7-4600U Processor (4MB Cache, up to 3.30GHz)
Display Panel
14.0" FHD IPS With WWAN
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Mar 15, 2014
When I move my finger across the touchscreen on my brand new T440s Windows 8 machine, a skinny dark line about one inch long follows my finger--whereever I move it.
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Nov 20, 2013
I installed clean install windows 8.1 (iso directly from Microsoft) and I was thinking, that Lenovo System Update will install all necessary drivers and tools for me.Even newest bios wasn't offered for install. However, on lenovo's website all drivers was available.
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Jan 27, 2013
This is a brand new TP T440p and I installed a fresh copy of Windows 8.1 Pro on it (licenced). I've applied all Windows updates and installed all drivers/BIOS updates from Lenovo System Update.
The computer works fine, but when I put it to sleep and wake it back up, the external monitor is almost always flickering (there is a 1mm movement to left and right, line by line - I'll shoot a video, if the camera will be able to capture the movement, because it's very "fine"). Sometimes it stops after a few minutes, but most of the time I need to re-boot the computer.
Also, not always, but many times the WiFi connection is lost and I can't reconnect unless I reboot the computer.
[URL]
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Dec 27, 2011
A new T440s makes multiple times problems after start or sleep mode. Windows 7 comes up but instead of login screen a black screen appears. Just the F7 wireless control gives response. When it happens after wake a programs are runing in background but the screen is black.
I did already all updates, just not my BIOS, it is 2.11 but now 2.19 is available. I hesitate BIOS updates.
I could return the laptop since it is within the 2 week return garantie.
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May 23, 2014
I was looking for the software to disable the touchpad. I saw a video that had the option but it was windows 8 and I have been unable to find the same options for 7. The thinkpad tab in the screen shot is not showing up in 7.
Link to image
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Jun 25, 2014
I am running 2 external displays through the ultradock on my t440s. The built in display looks nice and crisp. My second monitor is 1440x2560. The task bar is sharp and the title of most windows looks good. All programs looks terrible. Firefox is a blurry mess.
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Aug 17, 2014
I have a T440s and have an issue with the camera. It seems to turn on (little green light comes on) when I access the Windows 8 camera app or any other app (like skype), but I do not see anything out of the camera except for a gray screen with a camera icon that has a bar through it. It looks like the camera needs to be activated somewhere but where to look. I have checked the driver and it seems to be fine (no yellow warning icon), I even unistalled and reinstalled the latest camera driver from the support website but that does not change anything.
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Oct 20, 2013
My Thinkpad T520, Windows 7 Pro takes over a minute to load any webpage after waking from sleep. The wifi icon shows that the network has connected to the internet after about 10 seconds from wake up. But if I attempt to use a browser to load any webpage, I must wait nearly a minute before the page will load. After that, pages load quickly.
This problem occurs in multiple browsers (FF, IE, Chrome). I am using Intel Centrino Advanced N-6205 wireless adapter. I've updated the wireless driver and BIOS. I've cleaned out my registry using CCleaner, and I've defragmented.
One bit of advice I've read that I've tried from these forums does NOT work: Uncheck from Device Manager under the Power Management tab for my wireless adapater the option to Allow the Computer to Turn Off This Device to Save Power. Unchecking that option (which would seem to keep the driver on) makes the problem worse because the wifi will not reconnect at all.
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Aug 17, 2014
On my T540p, I configured the rapid start technology according to [URL] ....
Since I have performed a BIOS update to 2.14 and an update of the Intel Wifi driver to 17.0.5, I experience the problem of battery drain when the computer is in S4 sleep state, at a rate of approximately 0.125% per hour (on the 56Wh battery).
This was not the case before these updates. There was no noticable power drain in S4 sleep state, even not over multiple days. I'm using Win7, I set all the WoL capabilities both in BIOS and in the Intel driver to disabled, according to [URL] ....
External device USB charge settings are also fully disabled in BIOS and Power Manager. The problem does not occur when the system is fully shut down, but in S4 Sleep state, which should be a zero-power state too, as it was before the updates. In the details of the BIOS update it is stated " Fixed an issue where the computer might fail to enter sleep state". Could the power drain be a side effect of this fix? Or is it an issue with the (new) Wifi driver, as it was the case for the Y410P?
How could this battery drain be avoided?
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Oct 30, 2014
Windows 8.1, 64bit, all drivers up to date, Nvidia 730m, intel 4600. Fairly new issue (couple of months), laptop wakes from sleep but display does not function, everything seems to be working normally during, just no display. Forced to hard restart.
Just avoiding using sleep mode for now. Seems to be a software issue, upgraded to 8.1 when purchased almost a year ago, worked fine until recently.
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Sep 25, 2014
I just bought a T440s and I have multiple USB 2.0 devices that I would like to use with it. What sort of adapter do I need since the T440s has only USB 3.0 ports.
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Dec 16, 2014
When I connect second display via regular VGA cable I can set the maximum resolution to 1920x1080, although native resolution for my external screen is 1920x1200.
I could just find posts related to similar problems when using docking station - tried some of the solutions, but none seemed to work.
Found this [URL] ... on dpreview - suggests using miniDP to DP 2-link converter (screen has just VGA/DP ports).
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Nov 14, 2013
I am just entering some numerial data and found out that there is no num lock key on the new designed keyboard. There is also no description about this in the manual. Do I need to set something to use?
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Jul 16, 2014
I was wondering if it is possible to upgrade the built in 4gb on the T440s, Not a big deal if i cant, just wondering because I can actaully get 2 8gb sticks. how to access the built in stick.I only have the built in right now, adding the one 8( hopefully both) later this week.
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Jul 10, 2014
I own a T440s that comes with a SSD hard drive of 258 GB, and I was wondering wether it is possible to add additional space, like a 1TB HD drive?
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Oct 8, 2014
I have a T440s lenovo laptop whose motherboard was replaced a few months ago.
Today I wanted to make a clean installation (windows 8) using the recover USB key I created before the motherboard replacement (note that I already used it and it was working before changing the board).
It goes through the different steps, deleting files and creating the partitions, but when it is done the computer is not able to boot on the hardrive. I have the following messages :
Intel (R) Boot agent Ge v1.5.43 copyring (C) 1997-2013 , Intel corporation
............. initializing and establishing link...
PXE-E61 - Media test failure, check cable
PXE-M0F - Exiting intel boot agent
(so looks like it is trying to boot on the pci lan)
Then it comes back to the boot menu where I have a choice between :
ATA HDD0
PCI LAN
If I select the first one nothing happens, and the the PCI LAN gives the above error message.
I tried to reset the bios parameters to default but it did not work. So I am wondering if it has something to do with some change in the motherboard ID, bios version....
I also launched the lenovo quick storage device test to check the hard drive and all was ok. I had to change a bios option to UEFI (the new motherboard was set by default to Legacy, messing up all the recovery process)
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Nov 16, 2013
New T440s doesn't seem to be entering 30-day standby mode.
I did upgrade the RAM and SSD after purchase. RAM is now 12GB and SSD was cloned directly from the factory drive. In Disk Manager, I do see a 12GB partition that I presume is the sleep partition? Computer is running Windows 8.1, all updates applied, as far as I can tell everything relevant is up to date. Power Manager is not installed (not installed from the factory). Rapid Start is enabled in the BIOS and set to 1 Minute for testing.
I did find that in the Windows power plan selected from the factory that Hybrid Sleep was not enabled (nor was Hibernate). I've enabled Hybrid Sleep.
Still, the computer never enters deep sleep mode. Nothing connected to the computer and no significant changes made to the configuration other than updating to Windows 8.1 and installing some software.
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Dec 1, 2014
proper sequence of steps to successfully clone my existing HDD to the 850 Pro SSD.
I am most curious as to what bios settings needed to be made before, during, or after the cloning process (AHCI?)
I purchased a USB 3.0 to SATA cable to work with the process but don't know if I take the old drive out first and connect it to the cable, or connect the SSD to the cable and start the process.
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Apr 26, 2013
In case of new ThinkPads the fingerprint sensor can't be used to authenticate at power on?
Looks bit strange to me, that Lenovo will remove this function.
Link to picture ...........
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May 31, 2014
My LAN port seems to be unstable. I insert the cable and hear the clicking sound but no LED turns on. I have to push the cable further to get the indicator on. It may also disconnect if the cable moves.
Is this a faulty port? And, if so, what does it take to fix it? (i.e. what do they replace/fix?)
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Oct 30, 2013
I did not find any settings to have wireless on and bluetooth off when the OS starts. I always have to press Fn+F5 and switch it. How to do it?
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Dec 21, 2013
Every time I open one of the Lenovo apps like like Support or Companion, I get the message "Enhanced functions for this application are available". I click the message, a browser opens up, I download "dependecypackage.exe", I install, setup asks for a restart and I let it, and the process repeats again and again. I keep getting this "Enhanced functions..." message. It is driving me crazy. How do I end this cycle?
T440s
i5-4300U
4GB RAM
256GB SSD
Factory Win 8 upgraded to Win 8.1
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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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Nov 21, 2013
I just recently received my first lenovo laptop, the T440s. The overall built quality is excellent and performance is great. However, I realized there is a dead pixel on the screen. I am stilI within the 21 days return limit. I am wondering if I am able to get an exchange for one without such defect and not subject to the restocking fee?l
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