Ok. The best solution for this is posted here on ask ubuntu. The issue is with the LTS update, it did not include the updated bcmwl file when it switches the Kernel to the HWE version. This is the link to where I found the solution I used and it solves my problem.
I chose option one. https://askubuntu.com/a/1305819/42310 -- 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/1907445 Title: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu5: bcmwl kernel module failed to build Status in bcmwl package in Ubuntu: Confirmed Bug description: Wifi disappear on Macbook Pro 15" ProblemType: Package DistroRelease: Ubuntu 20.04 Package: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu5 ProcVersionSignature: Ubuntu 5.8.0-32.34~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-32-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 CasperMD5CheckResult: skip DKMSKernelVersion: 5.8.0-32-generic Date: Tue Dec 8 18:14:41 2020 DuplicateSignature: dkms:bcmwl-kernel-source:6.30.223.271+bdcom-0ubuntu5:/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:593:20: error: implicit declaration of function ‘ioremap_nocache’; did you mean ‘ioremap_cache’? [-Werror=implicit-function-declaration] InstallationDate: Installed on 2020-05-07 (215 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) PackageVersion: 6.30.223.271+bdcom-0ubuntu5 Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2 PythonDetails: N/A RelatedPackageVersions: dpkg 1.19.7ubuntu3 apt 2.0.3 SourcePackage: bcmwl Title: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu5: bcmwl kernel module failed to build UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1907445/+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
