PCIe Wi-Fi class N (150Mbps) ONLY doesn't work under Win7 HP

Megahertz07 · 03 Dec 2018

My desktop computer is on my home office, and the ISP router (with class N (300Mbps) WiFi) is on the opposite side, about 3m (10ft) away.
Is important to say that I don’t have any other computer, tablet, printer or cell phone to connect to the desktop. The Wi-Fi is only to connect to the Internet.

To avoid the Ethernet cable across the room, I was using a PCI Wi-Fi class G access board (TP-Link WN551G). The installation was plug and play as Win 7 found and installed a driver for it. Never had an issue with it.

Recently (due to another ISP competition) my ISP gave me a free speed upgrade from 15Mbps to 60Mbps. As maximum speed achieved with the WN551G is around 25Mbps, less than half the internet speed, I bought a PCIe Wi-Fi class N (150Mbps) access board (TP-Link WN781ND).
Can’t make it work under Win 7.

I have a SSD (for daily work) with Win 7 HP and Lubuntu and a Win 7 boot able HDD used for backup and maintenance. I also have a boot able Win 10 PE USB pendrive (with a lot of tools).
The TP-Link WN781ND was also plug and play under Lubuntu and Win 10 PE. That excludes a hardware or router problem. The issue is only under Win 7 HP (Doesn’t work on both Win 7 installations).

After physical installing and booting, I installed the driver.
- First ran the driver setup that came with the WN781ND. Didn’t work.
- I downloaded a driver from TP-Link site. Didn’t work.
- The chipset is a Qualcomm Atheros AR9485 so I also tried a driver from it. Didn’t work.

Under device manager – properties it says that the Device is working Properly.
The problem is that it doesn’t find any Wi-Fi and there are at least 4 around.

The Hardware Id is PCI\VEN_168C&DEV_0032&SUBSYS_3118168C&REV_01

I have searched the internet for a solution and tried many options as setting WLAN Autoconfig service to on. Network Access Protection (NAP) is off.

Any ideas?
Thanks, Megahertz07

Solved: Please read Solved

torchwood · 04 Dec 2018

Hi Luiz,

Dumb question time
Thats only a 2.4ghz adapter - is your modem set to broadcast on 5ghz
Check on the advanced settings tab.

Roy

Megahertz07 · 04 Dec 2018

Roy, the 2.4ghz adapter works fine under Lubuntu and Win 10PE. It is something on Win 7.

My cable modem / router is a Humax HGB10R-02 and has two radios: 2.4 and 5GHz. As I don't have any device at 5GHz it is turned off.

torchwood · 04 Dec 2018

Luis,

can you run msinfo32,
produces a lot of info about how the system running, have a quick look to see if anything stands out.

Might be easier to run and post BSOD info collector

Blue Screen of Death (BSOD) Posting Instructions

Roy

Megahertz07 · 04 Dec 2018

The only thing I found on msinfo32 is that the WiFi use irq 12 that is already in use but it says there is no conflict.
I ran the dm log collector.exe. Don't know what to look for.

torchwood · 04 Dec 2018

Hi Luiz,

something odd here, according to

msinfo>> components>> Network >> adapter
its using AR5005g drivers and there's no set-up detail (obviously why it wont connect)
see screenshot

Your Ethernet looks fine.

compare the details they should be the same - IP/subnet the only difference will be (xx) 192.168.0. XX
ignore MAC
In your position i would disconnect the card - remove drivers AND if it gives you remove Device option DO IT

REBOOT

re-insert the card and let the OS prompt for drivers

Roy

Megahertz07 · 05 Dec 2018

Hi Roy,
I have installed and uninstalled the drivers many times, always deleting the previous driver. I have also moved the adapter to another PCIe slot.
Under device manager – properties, all three installs says that the Device is working Properly.

To get an IP/subnet you must choose a router and logon on it. The problem is that windows says that there is no Wi-Fi and there are at least 4 around.

The adapter isn't the AR5005G, it is the AR9485. It is also on msinfo >> components >> Network >> adapter

I'm not alone:atheros ar9485 no connections available windows 7 - Google Search

Megahertz07 · 05 Dec 2018

IpConfig /all doesn't show the Wireless adapter

iko22 · 06 Dec 2018

netsh wlan show drivers
netsh wlan show interface
netsh wlan show networks

what results do you receive?

Megahertz07 · 06 Dec 2018

Thank you Iko

The oem45.inf