hp notebook not support 5ghz wifi

[Arjun40]

Product: 15-ay554tu

Operating System: ubuntu 18.04

Hello

I am facing a lot of 5ghz  network issues on my hp notebook. when I checked the specification it shows a single-band wifi card and a single antenna.  so is it possible to attach a dual band wifi card to this model as well dual antenna?  and is it work fine?

Please give me a proper solution to use the 5ghz wifi network on this laptop.

[Paul_Tikkanen]

Hi:

Below is the link to the parts list for your notebook.

HP PartSurfer

It comes with a Realtek RTL8723BE Wi-Fi adapter.

I'm not the least bit surprised that you can't connect to the 5.0 GHz Wi-Fi band since that model Wi-Fi adapter only works on the 2.4 GHz Wi-Fi band.

RTL8723BE - REALTEK

You can upgrade the Wi-Fi card to this model, which is dual band, but I don't know if it has driver support for Ubuntu.

Check an Ubuntu forum before buying the card to make sure it works on Ubuntu.

Realtek RTL8821CE 802.11 ac 1x1 Wi-Fi + Bluetooth 4.2 Combo Adapter (MU-MIMO supported) HP part # L17365-005.

The card has a maximum throughput of 433 MBPS on the 5.0 GHz Wi-Fi band with an AC router and an excellent signal.

You can find this model on eBay, or Ali Express. 

I see some Intel 3165 cards listed on the eBay listings, so don't buy those.

https://www.ebay.com/sch/i.html?_from=R40&_nkw=L17365-005&_sacat=0&_sop=15

RTL8821CE - Buy RTL8821CE with free shipping on AliExpress

On the Ali Express listings, make sure the card has the HP Part # of 915620-001.

Below is the link to the service manual, where you can find the Wi-Fi card removal and replacement procedure.

HP Notebook PCHP 250 G5 Notebook PCHP 256 G5 Notebook PC Maintenance and Service Guide

[Arjun40]

Hello

As per your guide, I bought a Realtek RTL8821CE 802.11 ac 1x1 Wi-Fi + Bluetooth 4.2 Combo Adapter (MU-MIMO supported) HP part # L17365-005  and I install it on my ubuntu HP  machine and it's worked on 5ghz fine but it getting very slow internet. 
When I refer to the hp Maintenance and Service Guide then it shows  Intel Dual Band Wireless-AC 3165
802.11 ac 1x1 WiFi + BT 4.2 Combo. So please help me choose the right dual band wifi card.  

[Paul_Tikkanen]

The Intel 3165 won't give you Bluetooth because you need two wireless antenna wires to connect to it.

The Intel 3165 has the same specs as the Realtek card--433 MBPS max connection speed.

The card works fine in Windows (I have to RTL8821CE's in two of my HP notebooks), so I can't help you with sourcing a better card for Ubuntu.

Did you check the Ubuntu forums to see if there are newer drivers for the card?

The drivers for Windows are as current as August 2022.