***++Possible Problems++***
There are many reasons for this:
* It can be that the drivers aren't installed or up-to-date for the Wi-Fi/Wireless card.
* There is no Wi-Fi card installed or not properly installed i.e. the connection is loose or the antenna cables are damaged.
***++Possible Solutions++***
* Firstly check if there's a [guide|110017|Wi-Fi/Wireless card|new_window=true] installed on the computer or it's connected properly, and if the antenna cables is in good shape.
** If there's no card, you can [link|https://www.amazon.com/hp-pavilion-wireless-card/s?k=hp+pavilion+wireless+card|purchase one|new_window=true] or reuse from old laptop (must be compatible) and insert it, then do the next solution.
** If the antenna cables aren't good, same thing goes; purchase or reuse. No need to install/update drivers.
* If card is connected and antenna cables are good, make sure your device drivers are up-to-date. Best way to check and update drivers is to use a [link|https://www.lifewire.com/free-driver-updater-tools-2619206|driver updater|new_window=true].
***Let me know if this helps 👍🏾***