You should be able to install the driver from the driver manager or by using this command in terminal with an ethernet connection
sudo apt update && sudo apt install bcmwl-kernel-source -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bcmwl in Ubuntu. https://bugs.launchpad.net/bugs/1949304 Title: package bcmwl-kernel-source 6.20.155.1+bdcom-0ubuntu0.0.1 failed to install/upgrade: installed bcmwl-kernel-source package post- installation script subprocess returned error exit status 10 Status in bcmwl package in Ubuntu: New Bug description: Tried to install on 20.04.3 Ubuntu Gnome andwill not load.Trying to get WiFi on Dell Optiplex 9020 ProblemType: Package DistroRelease: Ubuntu 20.04 Package: bcmwl-kernel-source 6.20.155.1+bdcom-0ubuntu0.0.1 ProcVersionSignature: Ubuntu 5.11.0-38.42~20.04.1-generic 5.11.22 Uname: Linux 5.11.0-38-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.21 AptOrdering: linux-headers-3.5.0-30:amd64: Install NULL: ConfigurePending Architecture: amd64 CasperMD5CheckResult: skip Date: Sun Oct 31 12:38:49 2021 ErrorMessage: installed bcmwl-kernel-source package post-installation script subprocess returned error exit status 10 InstallationDate: Installed on 2021-10-30 (1 days ago) InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1) Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2 PythonDetails: N/A RelatedPackageVersions: dpkg 1.19.7ubuntu3 apt 2.0.6 SourcePackage: bcmwl Title: package bcmwl-kernel-source 6.20.155.1+bdcom-0ubuntu0.0.1 failed to install/upgrade: installed bcmwl-kernel-source package post-installation script subprocess returned error exit status 10 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1949304/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
