07-22-2017 05:59 PM
I bought a brand new Lenovo Yoga 910 series laptop, costing a fortune.
Its not even 20 days since I bought this laptop, I am seeing the wifi adaptor losing the connection within 5 mins of usage. Whats worse, it causing my wifi router to jam as well, and all of my other devices loses connection. I have few other devices, including a lenovo thinkpad, where i never faced any issues till date.
After some research I found out that the wifi adaptor in the lenovo yoga is Qualcomm Atheros QCA61x4a and it has lots of issues on Windows 10 and people are complaining on multiple forums about it since couple of years. Suprising that Lenovo nor Microsoft nor Qualcomm has not fixed it yet or I couldnt find a proper solution till now.
It is such a bad customer experience, that such a basic thing like wifi connectivity is not working properly on such a high end laptop. I feel I just made a bad decision of buying this waste device instead of a Mac book Pro.
Hope someone from Lenovo fixes this for me or else I shall return this device.
Solved! Go to Solution.
07-22-2017 09:09 PM
Try installing this driver first: http://pcsupport.lenovo.com/us/en/products/LAPTOPS-AND-NETBOOKS/YOGA-SERIES/YOGA-910-13IKB/downloads...
Also, try removing both Qualcomm Installation Tools for Wi-Fi and for Bluetooth from Programs and features, and changing in the Power Options Advanced tab:
PCI Express - Link State Power Management for Battery and Power to OFF.
If those two doesn't work, best thing to do is to contact Lenovo support for a WLAN card repair. Their number is 1-877-453-6686; and they have support chat option at http://support.lenovo.com
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08-01-2017 09:09 AM
I tried installing every possible driver, latest and greatest, adjust all the settings as mentioned in multiple posts. Alo upgraded the BIOS. But the problem is not solved. Using the laptop jams my wifi router completely and all other devices lose the connection. Only way out is to restart the router.
The Qualcomm wifi adaptor shipped with this laptop is a crap and Lenovo is fooling people by not fixing it or replacing it.
There are many people having similar issue as mine.
08-02-2017 09:48 AM
Make sure the Qualcomm WiFi network adapter is running driver ver 18.104.22.1687. Pretty sure that's the latest one.
If it's still failing and your router is dual band, give it separate SSIDs for 2.4 and 5GHz. I had to do that for a different device and the issues stopped after that.
08-02-2017 10:18 AM - edited 08-02-2017 10:20 AM
I have the latest driver ver 22.214.171.1247. and the problem is still there.
I plugged an external usb wifi stick and its working great, without any issues on the same laptop. Certainly the Qc Atheros chipset is faulty. Its not just me facing this issue on my laptop, many others are having similar issue with this chipset. I just hope Lenovo recognises this fast and replaces with better wifi chipset.
With regards to router, mine supports dual band, but i didnt find a place in the router setup to give it separate SSIDs. Even if this solves on my router, what about the routers I have to connect to, when I am out of home, travelling elsewhere ?
08-02-2017 10:53 AM
So far, I've run into no issues traveling. About to do it again for four days. If I have any problems, I'll let you know. All I can tell you is..
The WiFi card worked beautifully out of the box. Things went south with the Windows Anniversary Update. That caused the Qualcomm Installer to hang. A lot of what the installer was trying to do was left half-done. I spent weeks tracking down WLAN errors. Most of those were registry keys with the wrong permissions. Once I found and fixed those, most of the WLAN errors ceased. About the same time, I had to install a device on my WiFi network that wasn't happy with my dual-band router. It's a 2.4Ghz device and it would hang trying to connect to the 5Ghz radio.
So, somewhere between fixing the WLAN errors Windows caused, setting the router to dual SSIDs and installing the newest driver, it all works. It will still mysteriously lose the 5Ghz signal, but so does my iPhone. The 2.4 always works.
There are still times the router has to be rebooted, but it's back to the frequency I expect. Once every week or two, everything all the way back to the cable modem needs a reboot.
I have also read on this board where at least one member swapped out the Qualcomm for an Intel and it works perfectly.
Hope some of this helps.
08-02-2017 11:03 AM
08-02-2017 11:10 AM
I'll give you the shift key issue all day.
As for testing the laptop, remember, it worked just fine until Windows Anniversary Update got a hold of it. I'm sure nothing Lenovo did during testing would have prepared them for that. And it's certainly not the first computer I've had that worked fine until some Windows update. The Dell computer I bought running Win 8 survived the upgrade to 8.1. But Win 10 - supposedly completely compatible with it - fried TWO motherboards. Which is why I moved to Lenovo. Bad gasoline will tear up a Maserati, too. Can't blame Masarati for that, either.
For me, anyway, it's all working now and is about to get a big road test. And I'm learning to use left-shift for all my caps
12-09-2017 03:05 PM
03-08-2018 05:13 AM
Changing names of SSIDs was not the solution for me. Found an article on Lenovo support suggesting 10 different approaches to a fix and the one that worked was turning off heuristics on wifi adaptor.