Wifi Not Working

Question

When i tried to turn on my WiFi it does not work and after a while maybe 10 to 20 seconds Blue Screen of Death appears showing error on rtwlan.sys.

For first i thought my laptop's WiFi device is damaged somehow .. but when i turned on my Bluetooth to transfer some files suddenly my WiFi starts working and connected to available network.

So i checked and came to know that when Bluetooth is ON WiFi works and when Bluetooth is OFF, WiFi also don't work and if i try to ON or OFF WiFi when Bluetooth is OFF system shows Blue Screen of Death showing same rtwlan.sys error.

system details:

Windows 10 Pro 64-Bit (up-to-date)

Laptop HP core i7 8th Gen

RAM 16 GB

Answer 1

Hi Imran, I am Rob, an independent and a 12 time and dual award MVP specializing in Windows troubleshooting and Bluescreen analysis. Please remember as independents we are not responsible for the development of Windows or the computer hardware and drivers. If you will work with me I will be here to help until the issue is resolved.

The real issue is the BSOD which needs to be resolved first.

rtwlane.sys is the Realtek WiFI driver.

Check with the System/Motherboard maker for updated versions.

This utility makes it easy to see which versions are loaded :

Run DriverView - set VIEW to Hide Microsoft drivers - update those without Dump in their names (and update BIOS and chipset drivers).

DriverView - Free - utility displays the list of all device drivers currently loaded on your system. For each driver in the list, additional useful information is displayed: load address of the driver, description, version, product name, company that created the driver, and more.

http://www.nirsoft.net/utils/driverview.html

For Drivers check System Maker as fallbacks and Device Maker's which are the most current. Right Click the Start Button - Device Manager - Display Adapter - write down the make and complete model of your video adapter - double click - Driver's tab - write down the version info. Now click UPdate Driver (this may not do anything as MS is far behind certifying drivers) - then Right Click - Uninstall - REBOOT this will refresh the driver stack.

Repeat that for Network - Network Card (NIC), Wifi, Sound, Mouse and Keyboard if 3rd party with their own software and drivers and any other major device drivers you have.

Now go to System Maker's site (Dell, HP, Toshiba as examples) (as rollback) and then Device Maker's site (Realtek, Intel, Nvidia, ATI as examples) and get their latest versions. (Look for BIOS, Chipset, and software updates at System Maker's site while there.)

Download - SAVE - go to where you put them - Right Click - RUN AD ADMIN - REBOOT after each installation.

Always check in Device Manager - Drivers tab to be sure the version you are installing actually shows up. This is because some drivers rollback before the latest is installed (sound drivers particularly do this) so install a driver - reboot - check to be sure it is installed and repeat as needed.

Repeat at Device Makers - BTW at Device Makers DO NOT RUN THEIR SCANNER - check manually by model.

Manually look at manufacturer's sites for drivers - and Device Maker's sites.

http://pcsupport.about.com/od/driverssupport/ht...

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Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.

Please let us know the results and if you need further assistance. Feedback definitely helps us help all.

Answer 2

Hi Imran

My name is Andre Da Costa; an Independent Consultant, Windows Insider MVP and Windows & Devices for IT MVP. I'm here to help you with your problem.

What is the exact make and model? HP makes different model computers.

Open Start, type: system information

Hit Enter

Click System summary

Look in the right pane

Copy the system sku info into reply here.

See example: https://imgur.com/qzektpA

Press Windows key + X

Click Device Manager

Expand Network Adapters

Select the Network card listed,

Select Update Driver

This should give you a choice of drivers - select the oldest one

Wait a few minutes while it installs the old driver

or

press Windows key + X

Click Device Manager

Expand Network adapters

Right click your adapter

Click Uninstall

Exit Device Manager, restart. Windows 10 should detect the network adapter then reinstall it. Check if you can connect and browse.

Answer 3

Hi Imran. I'm Greg, an installation specialist and 9 year Windows MVP here to help you.

I'll give you everything possible to try in order of priority so that hopefully something works. If you need help performing any steps I'll be standing by here to guide you:

Enable IPv6 in the network adapter settings: https://www.tenforums.com/tutorials/90033-enabl...

Run the fixit from https://support.microsoft.com/help/929852 (Re-enable IPv6 on all nontunnel interfaces) and reboot.

Right click the network icon in System Tray at bottom right end of task bar to Troubleshoot Problems.

Try powering off modem, router and PC and then restarting in that order with 1 minute in between each.

Try all of these steps: https://support.microsoft.com/en-us/help/10741/...

https://www.kapilarya.com/how-to-reset-network-...

Update your network adapter drivers from the PC maker's Support Downloads web page using the full model number, HP Serial Number or Dell Service Tag on sticker. Compare the latest drivers available for download with the ones presently installed in Device Manager reached by right clicking the Start Menu. Make sure you have the latest BIOS or UEFI firmware, Chipset, Display (Video), Sound, USB3, Bluetooth, Network and all other drivers, or else download and install the latest now.

If you have the latest network driver then try on it's Driver tab also to Roll Back, or Uninstall and then restart PC to reinstall the driver. Try also all older drivers from Update Driver > Browse > Let Me Pick list working backwards.

Go to Settings > Network & Internet > WIfi > Manage Known Networks, highlight and remove the network having problems, restart PC to see if it shows up again.

Try plugging in by ethernet cable to the router to compare, then plug the ethernet cable into the modem (if separate) to see if this might be an issue with the router.

You also are entitled to Support from your internet provider to get online on all devices. This is always included in the monthly bill. If your router is less than a year old they will also Support getting it connected and optimized.

Another option is you could replace the wireless adapter with an inexpensive USB nano adapter like this one: https://www.amazon.com/dp/B06XSFPDFX/ref=asc_df...

Or you can use an Ethernet cable as necessary which should connect automatically.

if this was caused by Windows Updates then you can check which were installed at Settings>Update & Security>Windows Update under Installed Updates, then uninstall them from the link there, and hide with the Hide Updates tool downloaded from here: http://download.microsoft.com/download/f/2/2/f2...

You can also use System Restore to get before the problem began, then check for Updates with the Hide Update tool and hide them: http://home.bt.com/tech-gadgets/computing/how-t...

If this was caused by Version update then you can roll it back in Settings>Update & Security>Recovery and then hide it until it matures using the Hide Updates Tool downloaded from here: http://download.microsoft.com/download/f/2/2/f2...

I hope this helps. Feel free to ask back any questions and let us know how it goes. I will keep working with you until it's resolved.

______________________________________________

Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.

Answer 4

Hi IMRAN-SHAH,

I'm Stefano an Independent Advisor here to help you. Please follow this procedure:

1. Press WINDOWS + X
2. Click on "Device Manager"
3. Click on "Bluetooth"
4. Right click on your bluetooth device
5. Click on "Uninstall device"
6. Click on "Network adapter"
7. Right click on your wifi device
8. Click on "Uninstall device"
9. Click on "Detects Hardware change" (monitor icon)
10. Reboot

Answer 5

Hi, Imran-Shah

My name is Kathleen and I am an Independent Advisor. I would be happy to help you today.

I recommend you update your drivers

1.- Open Start.

2.- Search for Device Manager, click the top result to open the experience.

3.- Expand the category with the hardware you want to update.

4.- Right-click the device, and select Update Driver.

5.- Click the Browse my computer for driver software option.

6.- Click the Browse button

Check these links, I hope it helps.

https://support.microsoft.com/en-us/help/402844...

Let us know if these steps help you to resolve the issue.