Install broadcom-sta-common by entering the following commands in the terminal:
sudo apt update sudo apt install broadcom-sta-common
Common files for the Broadcom STA Wireless driver
Broadcom STA is a binary-only device driver to support the following IEEE 802.11a/b/g/n wireless network cards: BCM4311-, BCM4312-, BCM4313-, BCM4321-, BCM4322-, BCM43142-, BCM43224-, BCM43225-, BCM43227-, BCM43228-, BCM4331-, BCM4360-, and BCM4352-based hardware. . This package contains the common files and it should not be installed manually (it will be installed automatically as needed).