I am sorry, but I don’t know how to properly post a request. I had filled out the template, but the result exceeded the max size of a posting.
My problem is:
- Wifi had stopped working for an unknown reason.
After a re-install following the instructions below of driver for BCM4331 802.11 wifi started working again.
Although now working on 2 GHz, wifi on 5 GHz was not restored.
I have the system reports ready on demand.
Method of wifi recovery successfully used:
The first step is to remove any broadcom drivers already installed on your system. Open a terminal and use the following command:
sudo apt remove broadcom-sta-dkms bcmwl-kernel-source
Step 2: If you are connected to internet via ethernet
If you are connected to internet via LAN/Ethernet cable, you can install different broadcom drivers using this command:
sudo apt install firmware-b43-installer