Unable to connect to WPA2-PSK on Windows 7 Ultimate 64 bit with device Intel® Dual Band Wireless-AC 7260 802.11ac, Dual Band, 2x2 Wi-Fi + Bluetooth 4.0

[AQues]

Good afternoon everyone,

Could you please be so kind and help me solve this issue I'm experiencing right now?

At this moment, I'm unable to connect to WPA2-PSK wireless.

When trying to connect, I receive "Windows was unable to connect to ..." error.

No issue on WEP connections.

System: Laptop Lenovo IdeaPad Y5070 cu procesor Intel® Core™ i7-4710HQ 2.50GHz, Haswell™, 15,6" Full HD, 8GB, 1TB, nVidia GeForce GTX 860M 4GB.

The Ethernet cards installed on machine are:

Realtek RTL8168-8111 Family PCI-E Gigabit

Intel® Dual Band Wireless-AC 7260 802.11ac, Dual Band, 2x2 Wi-Fi + Bluetooth 4.0*

Operating system used: Windows 7 Ultimate x64

Same issue on another identical laptop.

Latest drivers were installed by using "Intel Driver Update Utility 2.0".

[BB4]

Two things to play with. Check the settings in the Advanced tab of the adapter properties.

1. Ad Hoc QoS Mode. Set to WMM enabled. There is probably a companion setting for this in the router. Enable it.

2. U-APSD support. Try toggling that from what it is now.

[AQues]

Hello, Thank you for answering.

1. I enabled Ad Hoc Qos Mode WMM (It was Disabled by default). Rebooted. Did not worked.

I don't have any issue with other laptops or tablets in order to connect to my wireless. So , I belive that my wireless device transmiter has no issue.

I belive the issue comes from both laptops from this wireless adapter AC 7260.

2. U-APSD support is Enabled by default

Wireless device transmiter settings:

Laptop setings and feedback when connecting to my WPA2-PSK - User SSID VIrus (It's the name ive chosen)

[BB4]

No difference then when you toggle off U-APSD?

[AQues]

I tried with and without U-APSD. I still can't connect.

(the password is correct - multiple verification's from other devices made)

Something strange, I noticed when I tried to manually add connection, I couldn't see WPA2-PSK security. Or is same with WPA2-Personal security?

[BB4]

Yes, you want to use "WPA2-Personal".

[AQues]

I tried to manually add the wireless connection but same message " Windows was unable to connect to SSID Virus" (WPA2-PSK)

I wonder if it has something to do with the 64 bit operating system I have.

Or maybe I should change it from Ultimate to Professional or upgrade to Windows 8?

Anyway, this will cost me extra money and extra time!

[BB4]

I'm using 7/64 bit and connecting fine to a modem with WPA2-PSK Personal, so it's not the operating system.

Try this. Set the broadcast channel to something specific. Choose 1, 6, or 11.

[AQues]

Your using same Intel® Dual Band Wireless-AC 7260 802.11ac, Dual Band, 2x2 Wi-Fi + Bluetooth 4.0 with Windows 7 Ultimate 64 bit?

I setup brodcast to channel 1, after testing 6. No change. Still doesn't work.

Anyways, it shouldn't be that complicated because I will give one of these two laptops away and the next user might find this annoying.

It's so weird that I can only connect to WEP and not to WPA-PSK or WPA2-PSK.

And I can't say that is a manufacture comopnent issue because that would mean that both laptops has the Wireless-AC 7260 broken or with dislike of compatibility with Windows 7 Ultimate 64 bit.

I have no idea what to do next. Could someone from Intel R&D could take a look at this case, please?

Or, what should I do in order to get help from their side?

[BB4]

I'm using Win 7 Pro 64, that's the only difference.

If you'd care to make a list of all the other settings in the Advanced tab, I'll compare them to mine. Might be something there. After looking at your router settings above, I'm not seeing anything there that should be the issue.

[AQues]

Thank you for taking this forward.

Should I try with Windows 7 Professional x64?

[AQues]

Just installed Windows 7 Professional x64 - same issue. Unbelievable! I don't understand how is this possible.

[BB4]

Farther down the page of threads on this forum is one titled, "7260AC Disconnecting every 5 minutes".

Go to post # 4 in that thread and download the driver linked there. It's a self-executing zip file that will open three folders for the versions of Windows. First, go to Control Panel and uninstall ProSet. Restart the PC. Click open the driver file and save somewhere on the PC. Open the adapter properties in Device Mgr. and click to update driver. Point to the Win 7 folder of the expanded driver file and let it update. Give that a go.

With the exception of Preferred Band, your driver settings are the same as mine. I don't believe that that one would make a difference.

If the 17.12 driver doesn't help, then the problem almost surely lies with the router. Do you have any kind of filtering set?

[AQues]

Good afternoon GattoNero,

I've updated the driver with the one you said. I noticed that only one "Microsoft Virtual WiFi Miniport Adapter # 3" appeared in my Network Connections.

After installing the driver, unfortunately, the error appears like always:

After installation, I also noticed that Bluetooth audio has an dislike of drivers that was mentioned by exclamation sign:

I'm afraid, I need to reinstall the previous drivers in order to have everything without exclamation sign.

I tried reset the wireless to factory settings and tried to logg in but still same issue. WEP ok, WPA2/WPA-PSK nok.

It's weird that I just made HotSpot with my smartphone and the security was WPA2 (AES) and the laptop connected with no issue.

The WLAN filtering is disabled by default. Never used it. (checked also)

If it's possible and if you want, I would accept a teamviewer connection in order for you to have a look. You can access the router and also the issued laptop.

[BB4]

When you reinstalled Windows, you should have installed a Bluetooth driver. It's a separate file from wireless. You could try that. https://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProdId=3622 https://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProdId=3622

Even so, it shouldn't affect wireless connectivity. So it seems, no matter what driver you're using, your router isn't going to let you have WPA2. I really don't think that this problem is with the adapter. But I don't know what the problem is. Maybe the Intel guys have some guidance. I'm stumped.

[AQues]

Thank you very much GattoNero for taking this so far.

I'm sure that I will find out eventually what is this all about.

Next thing on my mind is to go out somewhere and find another connection with WPA2-PSK and try to connect, just to be sure my wireless router is not the issue (still, all the evidence points out that my router is very "friendly" with other laptops and devices)

[BB4]

I agree with that plan entirely. The router is a significant variable that has to be eliminated.

If it's not the router, then I am out of my depth. I've read about a lot of connectivity problems here re: this adapter, but they've always been about speed, persistence, or sleep issues. I can't recall one like yours. Too weird. I hope this gets figured out because I'm really interested in what it might be.

[Jose_H_Intel1]

What happens if you try to connect using the Intel® PROSet/Wireless WiFi Connection Utility instead of the Windows* utility?

Are the settings from the wireless profile (in Manage Wireless Networks) matching the ones from the router in regards of AES or TKIP? In unusual cases a mixed setting works (AES+TKIP) but most of the time is better to avoid TKIP altogether.

You may also try updating the router's firmware.

[AQues]

Good afternoon,

First of all I would like to thank you for the time and patience you have shown trying to solve this.

What thought to be impossible started to be probable. Turned out that my wireless router is the only device that denied the wireless connection.

I went with one of the two laptops I had to a customer and connected with no issue on his wireless router on WPA/WPA2-PSK security.

I apologize for excluding my router as being the cause. In my defense, other laptops connects with no issue.

Still not knowing why my router does not accept the connection, I decided to make WEP connection available and leave the subject as it is.

Thank you again for your collaboration.