No 5 GHz WiFi working on Envy 15

[Danielsan]

Good evening to everyone,
I own an HP Envy 15-j104el with the latest version of Windows 10 (1607).

Last summer I've replaced the original Ralink wifi adapter with a more powerful Intel Wireless-AC 7260 Dual-Band, 2x2 + Bluethoot. All right, the signal is much better and the yield in the use of the pc is consistent

I've only one problem: I can't find wifi networks in 5 GHz. I can find only network in 2,4 GHz. This is a problem because my card should support these networks, both 2,4 and 5 GHz. I' ve installed the latest intel driver and checked in the various settings, and really everything seems ok. I think that it is an antenna problem of the notebook. How do I make sure if the integrated antenna in my notebook is compatible with dual-band cards?

If there are other experiences with the same card or the same notebook, they are welcome.

Someone can help/explain me? Thanks in advance 🙂

[REO51ST]

Welcome @Danielsan

I have just one question.

The WiFi routers that you are trying to connect are 5 GHz???

REO

[Danielsan]

Yesmy friend.. my Technicolor router generating both signals. I've added just a "_5G" suffix to the SSID to individuate the signal. My iPhone find both, my laptop only the 2,4 GHz 😞

[REO51ST]

@Danielsan

No disrespect but I just had to ask.

So the only thing I have found so far leads to more questions.

You said you had a Ralink WiFI.

Ralink RT3290LE 802.11bgn 1×1 WiFi + Bluetooth 4.0 Combo Adapter (select models only)

And you replaced it with an Intel WiFi.

Intel Dual Band Wireless 7260 802.11 bgn 2x2 WiFi + Bluetooth4.0 Combo Adapter

There is no (select models only) for that one.

So I would suspect that you have a (select model) 

Now there is this one.

Broadcom BCM 4352 802.11 ac2×2 WiFi + Bluetooth 4.0 Combo Adapter (select models only)

Your manual here.

http://h10032.www1.hp.com/ctg/Manual/c03943414

REO

[Danielsan]

Forgive me for my stupid guilty, but I did not understand the meaning of your answer, and I do not understand what it means (select models only).
Please can you explain better? My card is not compatible?

Thanks for your time

[REO51ST]

@Danielsan

The (Select models only) has been a question I have asked for years.

With no definitive answer.

But since you had a WiFi card that is for (select models only) I think you have a (select model) laptop and need (select model only) WiFi cards.

I have thousands of WiFi cards at work.

If you live in the US I will have one of my warehouse guys try to find one on Monday and I will ship it to you for free.

Let me know.

REO

[Danielsan]

Thanks for you patience my friend, I live in Italy 😉 but I very appreciate your offer

However this is not a solution for me because I want to understand why the card that I have is not compatible with 5Ghz on my laptop. I have read in the Lenovo's forum that a guy had substitute his NIC with a 7260 ac in his Yoga 2 Pro and He see the 5 GHz signals....

Any other suggestions? 😞 

[Danielsan · Accepted solution]

Hello to everyone! I want to share the solution that I'va found for my problem. The NIC adapter was ok, perfectly conpatible, and the solution for the problem is that the default setting of the driver privilege the 2.4 GHz mode of the card, setting the correct values in the adapter driver options I can see also 5 GHz network 😉
Seems strange because the 802.11a signal is more stable but also more susceptible for the presence of obstacles (like a strong wall or an house plan) in the coverage area, this is because with router on the ground floor and my laptop in the first floor, the bgn signal work flavlessy but ac not.

Thanks to everyone for the help, I hope this can be the same for the other 🙂