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Windows 7: TP Link Wireless Adapter does not work

23 May 2018   #1
Winston2001

Windows 7 ultimate 64bit
 
 
TP Link Wireless Adapter does not work

Hi,
I have just had a problem with my Windows 7 64bit desktop PC. I am using TP Link TL-WN821N Wireless USB Adapter to connect to my Samsung Smartphone. The motherboard is a Gigabyte B85M DS3H-A, recentlty purchased. The adapter worked on this computer really fine, until because of a virus attack I had to reinstall the OS. Then it stopped working. The adapter would show up in Network and Sharing center, only it will show 'Not Connected'. Device manager also does not show any errors. I ran network diagnostics,uninstalled and then installed the drivers several times, even installed the OS again thinking I might have made a mistake there, then carefully installed all updates and then the drivers, but the problem persists. Tested the adapter with other Windows 7 machines and it works fine.

What could be the problem? A driver issue? Or a problem with the motherboard? Any help is greatly appreciated. Thanks.

Edit: The notification area says 'AndroidAP- Connections are available-not connected'. Also, tried the adapter with usb 2 AND 3.0 ports with the same result.


My System SpecsSystem Spec
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23 May 2018   #2
Winston2001

Windows 7 ultimate 64bit
 
 

I forgot to mention: USB tethering works fine.
My System SpecsSystem Spec
24 May 2018   #3
Megahertz07

Windows 7 HP 64
 
 

It can be a "Win update".
I'm having same problem with my TP-Link TL-WN551G. Takes a long time to identify the network, says it's connected. but no internet.
May 8, 2018 - KB4103712 (Security-only update) Windows 7May - Windows 7 Help Forums
My System SpecsSystem Spec
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24 May 2018   #4
Winston2001

Windows 7 ultimate 64bit
 
 

Thanks. But I cannot find these updates on the list.
What can it be then?
My System SpecsSystem Spec
24 May 2018   #5
Megahertz07

Windows 7 HP 64
 
 

Do you have any firewall other than Win firewall?

Try this
Shut down your cell phone and restart it.
After cell phone boot, do the same to your computer.
Search for the router (android AP) on the WiFi connection options and try to connect.
My System SpecsSystem Spec
24 May 2018   #6
Winston2001

Windows 7 ultimate 64bit
 
 

I tried two different phones but neither of them works. But I can easily connect to the net with the same adapter on other machines running Windows 7.
While searching for a solution I came upon something called Intel Proset Wifi Utility. Can I use it as an alternative to Windows to connect? Will it work with my TP Link dongle?
My System SpecsSystem Spec
25 May 2018   #7
Winston2001

Windows 7 ultimate 64bit
 
 

Another thought: if I get a PCI wireless card, do you think it will work?
My System SpecsSystem Spec
25 May 2018   #8
Megahertz07

Windows 7 HP 64
 
 

As you wrote, it's not the adapter as it works on a different computer so a PCI wireless card is not guarantee it will work.

You didn't answer if you have any firewall other than Win firewall?
My System SpecsSystem Spec
25 May 2018   #9
Winston2001

Windows 7 ultimate 64bit
 
 

Yes, I have Eset firewall installed, bit I don't think that's a problem because I tried disabling it, with the same result.
My System SpecsSystem Spec
25 May 2018   #10
Megahertz07

Windows 7 HP 64
 
 

I had same problem that you do and it was the the firewall. Uninstall it and reboot.
Have a look at the Control Panel\Network and Internet\Network Connections - Wireless - properties.


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