Windows 10: Network driver disappearing making wifi not working

I was forced to update my windows a few weeks ago and ever since ive had nothing but problems with a laptop thats never had any.


The adaptor seems to keep cutting off in device manager it keeps updating itself... I watch as the Intel dual band wireless disappears and makes the internet instantly cut off... Then not long after it'll connect again but only for a moment. Theres no way i can seem to get it to stop disappearing.

I have made sure all drivers are up to date, Ive done a reset on the laptop to the last save that was available. Ive done a network reset. Theres nothing wrong with the laptop as Ive also done the scan. Ive done the normal turning off an on again. I uninstalled my anti-virus in case that was causing problems. I have trouble shooted the network and adaptors and it doesn't find anything apart from when the intel wireless cuts off and then the trouble shooter tells me i need to plus in a Ethernet cable. Im lost for ideas on how to stop this from happening. The laptop can't be used at the moment due to the fact internet cuts every 5 min so i cant even update games or anything either.

:)

 

Wifi disappears from abailable networks

Hi,

We suggest you to run the Network Troubleshooter to check if what is causing the issue. To do that, follow the steps below:

• Click Windows icon.
• Type Troubleshooting.
• Click Network and Internet.
• Click Internet Connections.
• A box will open, click Next to proceed with the troubleshooter.
  

If the issue still persists, you may get in touch with your device manufacturer to check for updated driver.

Let us know how it goes.

 

my wireless connection sign just disappeared and requested ethernet and i have an available network

Thank you for the response and sorry for the delayed reply. You can check for the switch of the physical WiFi hardware. We also suggest checking if the WiFi driver is installed and working from the device manager. Follow the steps below to check for the
driver:

• On the search bar, type device and select Device Manager from the list.
• Look for Network adapters on the list and click it to expand.
  
• Check if the driver for the WiFi is in the list. If it is, right-click on it and select Properties to check if it is working.
• If not, uninstall the driver then restart your PC.
• Once the PC starts, it will automatically reinstall the default driver.

After doing so, check if you can see the WiFi icon on the taskbar again.

Give us an update on how it goes.

 

Wifi Network Adaptor disappearing - HW or SW? How to fix?


Hi

I'm having wifi problems with my lappy, but I can't figure-out whether it is hardware or software. There is evidence to suggest that recent versions of Windows 10 have been causing wifi problems. If the problem _is_ with Windows and they are going to fix it, then I can stop worrying about trying to fix the hardware (I am travelling abroad and it is near-impossible to find expertise/parts/tools).


Gory Details:

System: Levono Yoga2 Pro laptop. Intel Core i7-4500U. 8GB RAM. Windows 10 64 bit.
I have been using Windows 10 since it came out without any problems. I have been keeping it updated.

Precursor to this problem: On 4th November 2016, mid-session, apropos of nothing, my wifi stopped seeing the wifi network it was connected to; or any other wifi networks. (My phone could see plenty). This was evidenced in the Taskbar, Action centre, Settings dialogs of the PC. The Windows version was upto date at the time, but downloading the next week's Microsoft Patch Tuesday updates (9th Nov) fixed the problem. System working AOK. Yay.
(MS update: KB3200970 "Addressed issue with the system tray showing no Wi-Fi connection even when Wi-Fi is present")

System fixed - I made a system-restore point.

The "fix" held for 24 hours, then a new, more severe problem started occurring (='the current problem').

Current problem: After 3 to 5 hours of normal, troublefree operation, the PC stops seeing the wifi entirely. Any menu options associated with wifi networking disappear entirely. The Device Manager can no longer see the Network Adapter (Intel Wireless-N 7260) or its driver software. (That statement is somewhat summmarised - see Note 1 at the bottom of this post for more details).

None of the Events in Event Viewer explain the disappearing Network Adapter.

If I do a (whole) system restore back to my restore point, then everything is fine-and-dandy for a few hours, then the Network Adapter disappears again, along with any chance of seeing any wifi controls.

System Restore consistently fixes it for a few hours. Then the Network (adapter) consistently disappears again.

- - -

So, is that hardware or software?

One might think it is temperture/overheating related, but the problem also once occurred overnight when the PC was switched off (it was fine when I went to bed and switched it off, but was 'broken' when I switched it on again in the morning).

One might think it is Virus related, but everything shows-up clean in MBAM and Avast.

If it is a hardware problem, why would a system restore (to a point a few days ago) fix it?

I'm thinking/hoping that the problem is caused by recent versions of Windows 10 (f,g below). But I can't find examples of other people suffering.

If it _is_ caused by the OS, how does one inform Microsoft about it? (I don't want to join the 'Insiders Community')


Any ideas?

TIA


-----------------------------------------
p.s. I have done as much diagnostics as possible - gory details here:

Note: the text "Result: FAIL" means that after a few hours of normal operation, AOK, the Intel Wireless-N 7260 Network Adapter can suddenly not be detected and any wifi activity/option becomes unavailable. Restart doesn't help. Restoring the system to a previous state fixes the problem (for a few hours).

Scenarios a-e all have the wifi switched on and connected to a wifi network.
a) System status up-to-date at 10 Nov. Result: FAIL

b) System status reverted to a Restore Point made in OCTOBER 2016: Result: FAIL

c) System status up-to-date at 10 Nov. Updated Network Adapter DRIVER to a newer version found by Device Manager (but not listed in the manufacturer's website's list of drivers). Result: FAIL

d) System status reverted to a Restore Point made in AUGUST. Retained old NA driver. Downloaded and applied November 9th MS Updates and updated Browser (Firefox) Version and Virus definitions: Result: FAIL

e) System status reverted to a Restore Point made in August. Retained old NA driver. Update Browser (Firefox) Version and Virus definitions, but DID NOT download/apply November 9th MS Update: Result: RUNS FINE FOR THE 4 HOURS UNTIL MS FORCES THE LATEST MS OS UPDATES TO BE APPLIED, then runs OK for a few hours then FAILs.

.

Scenarios f-g have the wifi switched OFF; or switched on but not connected to a wifi network; so that Automatic Updates can't be forced onto the computer.

f) System status reverted to a Restore Point made in August. Wifi switched OFF. Result: RUNS FINE FOR THE 14 hours I tested it. (i.e. the Network Adapter appears to be fine, as reported by the Device Manager)

...

g) (follows on from (f))... Wifi now switched ON but options set to "forget" known wifi networks, (so wifi is ON and polling nearby networks, but is not connected to any of them). Result: RUNS FINE FOR THE 6 hours I have (so far) tested it. (i.e. the Network Adapter appears to be fine as reported by the Device Manager)


Conclusion: f and g seem to suggest that the problem arises from later (current) versions of Windows 10. But this is inconclusive, because in scenario (f), the wifi card is not being used and and (g) it isn't being used for sending/receiving internet traffic

(N.B. I am abroad and using my hotel's wifi network(s) to try and use the internet. I have no control over the network itself).

----------------------

Note 1:

When I say "The device manager can no longer see the Network Adapter" - this is a _summary_ of what happens - infact, it seems to go through 4 separate stages:

1) normal operation - everything AOK.
2) The PC reports it is still seeing the wifi connnection that it is/was connected to, but is seeing no other wifi networks. The wifi network it connected to can no longer send/receive any data
3) The Device Manager shows a yellow warning triangle on Network adapters> Intel Wireless-N 7260, and 'Properties' shows "No drivers are installed for this device."
4a) The Device Manager shows a yellow warning triangle on Network adapters> Intel Wireless-N 7260 and Properties shows "This device cannot start. (Code 10). This device does not exist."
or
4b) Device Manager, Network adapters> doesn't show Intel Wireless-N 7260 at all.

A few minutes pass between each step through the stages occurring. Other apps running on the PC (e.g. mp3 player) freeze up for a couple of seconds when each stage changes to the next.