General discussion

After upgrading OS to Windows 10, Wi-Fi card not recognized.

After upgrading OS to Windows 10, Wi-Fi card not recognized. Help!

I'm experiencing some difficulties with my laptop/tablet and looking for a solution from members. I recently upgraded my Lenovo Yoga 3 Pro 1370 from Windows 8.1 to Windows 10. However after the upgrade my wireless Broadcom Wi-Fi card could not be found. I downloaded and installed the drivers for the card on Lenovo's website but still can't get the wireless card recognised in Device Manager to function. Is there a workaround or a patch that I'm missing??? I'm at my wits' end and I hope fellow members would help me resolve this problem. Please help! Thank you.

--Submitted by: Stephen A.

Discussion is locked

Follow
Reply to: After upgrading OS to Windows 10, Wi-Fi card not recognized.
PLEASE NOTE: Do not post advertisements, offensive materials, profanity, or personal attacks. Please remember to be considerate of other members. If you are new to the CNET Forums, please read our CNET Forums FAQ. All submitted content is subject to our Terms of Use.
Reporting: After upgrading OS to Windows 10, Wi-Fi card not recognized.
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Comments
- Collapse -
Replace WiFi card

Seems like you've done what one ought to. So....

It's pretty cheap to purchase a new WiFi card and should be relatively easy to replace. Search for YouTube videos like (https://www.youtube.com/watch?v=Jkj-IHh3IWc) on how to open up the case and you should be able to see the WiFi card in your laptop (it will look like the one you bought). Normally there's 1 or 2 screws and a couple of wires to disconnect and re-connect on the new one. Button it back up and you should be good to go. You'll have to either download drivers or the card my come with a driver disk that will get you going.

I've done this many times before and it's a very simple and inexpensive upgrade-the WiFi card you get will probably be better than the one that came with the computer.

Good luck.

- Collapse -
(NT) Woah. Don't do this until others have chimed in.
- Collapse -
OOps.

In the meantime if you can do it down load and install a thing called Speccy. It will tell you what your computer has in it and then find the brand and model of your wifi card. If it dosn't find it then maybe you do need a new one. but I doubt it.

Note: Edited by forum admin to fix typo.

Post was last edited on September 10, 2018 9:38 AM PDT

- Collapse -
(NT) It's spelled "speccy". [Just tryin' to help.]
- Collapse -
(NT) Thank you, ronc2. I fixed it in netsiu's post.

Post was last edited on September 10, 2018 1:06 PM PDT

- Collapse -
That's not so simple with Lenovo laptops

of that era as there is a (very short) whitelist of allowed WiFi cards embedded in the BIOS on them, supposedly to ensure compliance with wireless regulations in all markets, and it is next to impossible to find out what cards are whitelisted for any particular device other than the one fitted. This means that if you replace the card with just any other one the laptop will generate an error message and refuse to boot.

In my case (a Lenovo G710) even replacing the original Broadcom card with the alternative Atheros one listed for some versions of the laptop was blocked.

- Collapse -
This May Help

Hi,

Try this:-

1/. Go to device manager; find your wireless device either in network or unknown device

2/. Uninstall the device & driver through device manager by right clicking it.

3/. In device manager scan for hardware changes. It should find the device but not load drivers as they were deleted

4/. Right click the device and click update drivers.

This process has worked for me in situations like what you have described.

- Collapse -
Would it be just easier to buy Wi-Fi adapter and plug it...

into the USB port and go from there? Taking apart any laptop can lead to other problems or damaging components/cables. I think many people aren't willing to take that risk at least IMHO. Not that your solution won't work, it's just a bigger gamble for most.

- Collapse -
Yes an adapter is a good idea

Also running some Live distro may be a way to rule out the hardware

- Collapse -
Before you even think about doing this....

As mikenelson says, this can be a relatively simple operation DEPENDING on the specific laptop. From the Youtube video, if that is your laptop model, it doesn't look "relatively simple". Before you even think about attempting it, go to the Lenovo website and download a copy of the Hardware Maintenance Manual for your model, then read it through a few times to see exactly what is involved. These Lenovo manuals, in my experience, are extremely good and cover the issues step by step. I would also recommend a set of boxes, so that you can put the screws and any components removed in each step in a box by itself. This will be invaluable when you come to re-assembly.

But, as others have said, if the simpler steps, like trying to match a driver, don't work, then it may be much easier to use a USB dongle, some of which, Netgear for example, are little bigger than the USB slot and can be left in permanently. I use one such in an older laptop and it works just fine and gave me an upgrade from 802.11b to n with better range.

- Collapse -
Solution video card, downgrading?

I took my 32 bit Win 10 machine to a local computer repair shop, as my WiFi went out. The 'brilliant' technician decided I need a new video card. I picked it up and discovered there was now no sound. I took it back, and he had another brilliant idea. 64 bit Windows 7. Seems to work fine, except I have no driver for my scanner - everything else works fine.
Speaking of scanner drivers, I found VueScan which works great. It puts major watermarks on the output unless you buy it. I would buy it if the price was reasonable. I did find a workaround, which I won't mention; they would quickly close that glaring loophole if I did.

- Collapse -
I had similar problems with my Lenovo

where the WiFi did work after the upgrade to Windows 10 but was very unstable and in the end I found that, while not ideal, the best solution was to revert to the original driver (v6.30) used in the Windows 8.1 installation it was supplied with. Later driver versions from both Lenovo and Broadcom (v6.31.x - 7.35) caused problems all the time.

You say that the card is recognised but does not function and an easy fix for this can be just to disable the power management function "Allow the computer to turn off this device to save power" in the device properties. I have also found that the card works best if it is only used in single channel mode.

Changing to another WiFi card is not easy with Lenovo laptops - see my reply to Mike Nelson below - and in the end what I did was to buy a WiFi USB dongle (a TP-LINK Archer) and use that instead which has the added benefit of using the 5GHz band and ups the speed from the 72Mbps I was getting with the Broadcom card to 400.

- Collapse -
BIOS Setting

Some people have run into this problem and fixed it by disabling secure boot in BIOS settings, and then re-installing the wifi card driver.

- Collapse -
Wifi

Install DRiver Easy. It will look for all necessary drivers that need to be updated. It should show up after scan.

- Collapse -
Re: driver easy

We don't recommend such programs. Let's say it's a last resort if the driver from Lenovo's site doesn't work.

- Collapse -
Note about driver updaters.
- Collapse -
lost audio driver when I upgraded to Win 10 Pro from 8.1Pro

When I first upgraded my laptop to Win 10 from 8.1 Pro, I did not have any audio. When some upgrades were later pushed down to me from Microsoft, I lost my audio. This is the simple fix I used to get it back, I went to the HP site and downloaded the original audio driver and installed it. Golly, I had sound again. Microsoft pushed another update down a year or so later, lost my audio again. Went back to HP and got my audio driver, I had sound again.

What I am saying, try installing the original driver for the Wi-Fi. It seems some of the new drivers are not really compatible with some boxes and the original drivers work and do the trick.

Try this as it cannot hurt. The only thing, you may just get you Wi-Fi back again. Good Luck.

- Collapse -
MS Win 10 Update Glitches

A couple of months ago, I, too, had resulting glitches after a Win 10 update. In my case, I lost all website-sound, & also my ability to print emails & PDF-files.
Both fixes were easy, but cost me $50 paid to a local PC shop to find out what to do. Here they are (for freel):
In general, the Win 10 Update chg'ed the designated browser I had from Firefox to their MS browser product, Edge.
So, all my 'print' commands for emails & PDF-files were 'sent' to Edge to be printed - Edge wasn't running (I NEVER use it) so nothing printed. I just had to (re-)designate that Firefox was my default browser. Problem fixed.
The 'sound' solution was somewhat similar: the Win 10 Update removed my sound-driver, & substituted another - when that didn't work, I ended up with many copies of old-drivers, none of which was the correct one. I just had to delete all of the 'many copies', &, upon re-boot, Win 10 got me the right one.

Maybe you can apply one of these approaches to solve your problem. Good luck.

- Collapse -
Roll back to previous driver

Restore driver to previous version.
Roll back to Windows 8.1 OS.

- Collapse -
Just one more reason

To keep avoiding the scam that is Windows 10.

- Collapse -
Windows 10 is great

Pity you have had sufficient problems to offer this input. I support 35 users, all retired and Windows 10 is great for all. The most common problems are the user or the particular computer hardware. MS does a great job covering the multitudes of hardware and users.

- Collapse -
USB WiFi Card

I totally agree with others who suggested getting a USB wifi card. Over the last 10 years, I've experimented with many versions of Linux. This can be a very common side effect of that practice as most computers usually have Windows friendly wifi cards that don't always play nice with Linux. I found long ago that you can get on a forum, hope someone has the patience and knowledge to help you, then maybe after a week or ten days of back and forth suggestions and implimentation, you may find a solution. Maybe. Wireless dongles are cheap ( many less than $20), and they flat out work! Just be sure to Google one known to work with your machine and OS. Try the easy stuff first, but if it fails just get a USB wireless dongle. Life's too short!

- Collapse -
I had the same issue

Every. Single. Time. Windows has sent an update to my Windows 10 Pro, it killed my internet connection. I still believe in Restore Points, so restored each time, but I am fed up with Microsoft's cavalier attitude that their "one way for all" is the best course for their business, and insist on shoving the updates willy-nilly down our throats even though many of us neither need nor want the superfluous bells and whistles, but want a plain simple computer that works. And please, nobody suggest Linux unless you're willing to come to my house and teach me how to Linux.

- Collapse -
Computer needs a careful checkout

It is not good that you are having this problem with updates. There has to be problem with either your hardware or Windows install. I have supported many windows users over decades and this type of problem needs to be addressed at your computer. Microsoft is not the issue here.

- Collapse -
I don't agree

I would agree in most instances except upgrading to Windows 10. There was nothing wrong with my hardware. It was all fixed through Microsoft.

- Collapse -
Updates

If your computer updates and you roll it back to a previous restore point then you are never going to have the updates installed and will never fix problems that need fixing. There is a way to stop the annoying updates that happen when you don't want them by putting your computer in metered. Then you will only get security updates and will have to manually do the newest version update. Never, ever should you let your computer do a major version update when it comes out.

Microsoft forever has done testing until such a point where they feel the general public can do the rest of their testing and let unsuspecting users (all of us) to find all the rest of the problems that need fixing. If you wait a month or even better two months to install a major update you are less likely to have problems since they will all (or most) be fixed in the updated version.

Settings-Network-WIFI or Ethernet - then click on your connection and scroll down to metered connection and turn it on. Remember you have to update manually at some point if you want to stay current.

- Collapse -
WiFi card not recognized

Revert to the old OS. W10 may never let you use that network card again. If you have Nirsoft or Yumi files/folders on your machine it will quarantine them if it can't delete them. Be careful...very careful upgrading to W10 (my apologies to the producers and actors whose lines I mutilated).

- Collapse -
Latest Bios and driver

Checking the Lenovo web site for drivers. A windows qualified driver is offered for the Broadcom.

I assume you installed the one offered for Windows 10 64b. If this does not work you may need to update the bios as offered on the same web page. Correct bios and driver would be the normal solution. Assuming that both are installed correctly.

- Collapse -
Not so simple to replace a wifi card

Lenovo, Dell, HPaq and others have a white list of acceptable models of wifi cards baked into the motherboard BIOS. AND an internal card must be branded specifically for your Lenovo, even if it is the exact Broadcom wifi card. So, wifi cards made for brand name computers have a vendor ID burned into them, and it requires special hardware or software to change, so think only of a Lenovo wifi card for which your laptop has support. You should be able to find the Lenovo part numbers of supported wifi cards for your Yoga.

An inexpensive and very pragmatic choice would be to simply plug in an USB 802.11ac wifi card. They are readily available, almost all made in China usually with a Mediatek or Realtek wifi chip. They are not as fast as an internal card, but they will work.

But before you invest in more hardware, how about giving the Broadcom card another try. First, download the motherboard chipset drivers from the Lenovo website and install them, even though Device Manager shows them already installed. Next, reboot, download and install the Broadcom drivers and see what happens. Whether a Windows upgrade or otherwise, the motherboard chipset and other hardware device drivers get tangled up. Reinstalling the motherboard chipset drivers often unsnarls the problem. Not guaranteed, but takes a few minutes to try.

- Collapse -
Power options

Under device manager go to network adapters, select the wifi adapter, expand uncheck each sleep and wake states, also under network advanced settings, wake on lan magic packet low power state-disable all.
In power settings, under wifi set power to maximum performance, same for pcie if it is a pcie.
If a usb wifi adapter, under power settings,advanced settings, usb, selective suspend settings, turn off.
So network cards have additional software that the os does not like and will block it.
Shut down the pc, unplug the lan jack, start win10.
install the driver from device manager, select install driver, search my pc and let me choose, select have disk, point to the downloaded driver folder, install.
What os was the last driver, update designed for, xp,vista,win7,win8 or win10 ?

CNET Forums

Forum Info