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Moos
What's DOS?
Posts: 2
Registered: ‎11-04-2014
Location: Nederland
Views: 736
Message 1 of 6

Lenovo W540 randomly loses Wifi connections and its trackpad/touchpad often doesn't work

Good evening,

 

Every now and then, after using the laptop for a while, or getting it from sleep mode, the touchpad simply quits working as it should. Clicking by simply tapping the pad stops working, and clicking by really pushing in the trackpad itself will only activate either right or left click. Sometimes it even quits working at all. After rebooting the device the issues will be over, which makes me think it is some sort of a software issue.

 

Also every now and then, while working in my student room, my laptop loses its internet connection. While there are many Wi-Fi signals in my student room-complex, it can't detect any of them. Then, after waiting for some time and rebooting the device once or twice, the connection will get restored, and all the other signals are back as well.

 

Both issues aren't very huge, yet very annoying when working on a paper or so. Especially since I bought the laptop a little longer then two months ago, assuming due to it's price and the ThinkPad’s reputation (being able to stop a bullet and yet still work) this is a huge disappointment

 

Anyone who has a solution for me for either one of these problems?

Thanks!

 

 

pete_123
Punch Card
Posts: 29
Registered: ‎07-09-2014
Location: United Kingdom
Views: 696
Message 2 of 6

Re: Lenovo W540 randomly loses Wifi connections and its trackpad/touchpad often doesn't work

I have also noticed some wifi problems on the W540. I have the Intel AC7260, and occassionally, it stops working - reporting a driver problem. When this happens, it is not working at all and cannot scan for available wifi networks - exactly like you report. However, if I do a quick uninstall and scan for hardware changes within device manager, normal operation is restored, without having to reboot repeatedly. After a while, it will stop working again - this is not too frequent, however. I assume it is a dirver problem.
Guru
Posts: 754
Registered: ‎04-13-2012
Location: IS
Views: 682
Message 3 of 6

Re: Lenovo W540 randomly loses Wifi connections and its trackpad/touchpad often doesn't work

Hello.

 

Check this thread here for possible solutions. I was experiencing this myself on my W540, and just downgrading the driver fixed it completely for me; (as well as turning off the power saving feature in Power Management for the adapter.)

 

There are links to the drivers I'm currently using, as well as later ones if you wish to experiment.

 

X1-Carbon Wireless Issues.

 

@Moos - Which OS are your running?

 

Cheers!

ThinkStation P500 - Xeon E5-1650v3/32GB // ThinkPad P70 - Xeon E3-1505M/32GB
ThinkPad W540 (20BG) - i7-4800MQ/32GB // ThinkPad W520 (4282-W4Q) - i7-2720QM/32GB
ThinkPad T450s (20BW) - i7-5600U/12GB // Yoga 900 - i7-6500U/8GB
ThinkPad T61 (7665-CTO) - T7700/4GB // ThinkPad T60p (8741-C2G) - T7400/4GB
pete_123
Punch Card
Posts: 29
Registered: ‎07-09-2014
Location: United Kingdom
Views: 672
Message 4 of 6

Re: Lenovo W540 randomly loses Wifi connections and its trackpad/touchpad often doesn't work

I'm running Windows 8.1.  I have noted that I have lost the wifi both on battery and while pulgged in.  Will try downgrading the drivers and see what happens.  Thanks for the help!  

Moos
What's DOS?
Posts: 2
Registered: ‎11-04-2014
Location: Nederland
Views: 668
Message 5 of 6

Re: Lenovo W540 randomly loses Wifi connections and its trackpad/touchpad often doesn't work

I too use Windows 8.1.  Thanks for your responce, I'll check the link when I get home from my Excel VBA exam 

Guru
Posts: 754
Registered: ‎04-13-2012
Location: IS
Views: 654
Message 6 of 6

Re: Lenovo W540 randomly loses Wifi connections and its trackpad/touchpad often doesn't work

Alright.

 

@Moos, for your TrackPad issues, I'm guessing you got the latest Ultranav drivers installed, if not, install them:

 

SYNAPTICS THINKPAD ULTRANAV DRIVER

Then try the following: Open up the Charms - Change PC Settings - PC and Devices - Mouse and Touchpad and change the delay on the Touchpad to Short Delay. (No Delay - Always On for testing purposes if Short Delay doesn't fix it).

 

I set mine to Short Delay and it makes a world of difference.

ThinkStation P500 - Xeon E5-1650v3/32GB // ThinkPad P70 - Xeon E3-1505M/32GB
ThinkPad W540 (20BG) - i7-4800MQ/32GB // ThinkPad W520 (4282-W4Q) - i7-2720QM/32GB
ThinkPad T450s (20BW) - i7-5600U/12GB // Yoga 900 - i7-6500U/8GB
ThinkPad T61 (7665-CTO) - T7700/4GB // ThinkPad T60p (8741-C2G) - T7400/4GB

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