Hi:
Below is the link to the product specs for your notebook.
https://support.hp.com/in-en/document/c05849051
It comes with a single band (2.4 GHz only) wifi adapter.
If you want to connect to the 5.0 GHz wifi band you would either have to replace the internal Realtek RTL8723DE wifi card with a dual band AC card or purchase an external dual band USB adapter.
If you want to replace the internal card, this is the only one where both the wifi and bluetooth will work with one antenna cable...
Realtek RTL8821CE 802.11 ac 1x1 WiFi + Bluetooth 4.2 Combo Adapter (MU-MIMO supported) HP part # L17365-005.
You can find this model on eBay, or Ali Express.
https://www.ebay.com/sch/i.html?_from=R40&_nkw=L17365-005&_sacat=0&_sop=15
The card has the same throughput as the RTL8723DE card on the 2.4 GHz wifi band, but on the 5.0 GHz wifi band with an AC router, it has a maximum throughput of 433 MBPS.
Below is the link to the service manual, where you can find the wifi card removal and replacement procedure...
http://h10032.www1.hp.com/ctg/Manual/c05493257