Download and install Broadcom Broadcom BCM43142 802.11 bgn Wi-Fi M.2 Adapter - driver id 312982
networking - Cannot Get Broadcom bcm43142 Wifi Adapter to Work on Toshiba Satellite (Ubuntu 18.04) - Ask Ubuntu
Amazon.com: Wireless Network Card, 802,11 b/g/n Mini PCI-E WiFi Bluetooth Adapter Module,for Dell xps 2710 17tr bcm943142hm,for Windows 7/8/10 : Electronics
GitHub - Niels-van-den-Hork/ubuntu-wifi-broadcom-bcm43142-802.11b-g-n: This fixes the 'no network adapter found' issues for my hp pavilion laptop on ubuntu-broadcom bcm43142 802.11b/g/n