If you aren't able to connect to the internet with the affected system, including via a wired connection, just navigate to this link and follow the instructions there on how to the run wireless script without an internet connection. Sensitive information like MAC addresses and WPA/WEP keys are masked automatically. If you prefer, you can post the file directly to pastebin yourself. It will create the file "wireless-info.txt" at the location it is run from, and depending on its size, an additional archive called "". What version of Ubuntu are you using and is it up to date up to date Ubuntu 18.10 LTS. When booted have a look at lsmod and dmesg to see what is going on. Broadcom have been a nuisance in the past and you will find various post on them.
Once that's done, download and run the wireless info script, which will gather information to help diagnose your system. Drivers for Linux will be already in Ubuntu and there should be no need to install anything. This will enable the wireless script to, upon your approval, upload the obtained data to pastebin, creating at the same time a link to it in your terminal, permitting you to paste it to a forum thread. If the issues persist, it is recommended that you install pastebinit, by running: Using a wired internet connection, please run: I just stumbled upon this answer that may also help You out: Drivers for Broadcom BCM43142 on Ubuntu 14.When troubleshooting wireless, it's important that your system is fully updated by opening a terminal, CTRL+ALT+T. I would suggest that You try experimenting with this. I tested the last version of bcmwl-kernel-source and broadcom-sta installed via synaptic but it losing connection with the AP after some minute or not working after the connection. Note: If You still experience issues, it could also be worth while to try uninstalling/removing the firmware mentioned in the other question that You originally linked to, as it may not be needed at all. Hi I just bought a new notebook with the Wifi card Broadcom 43142, and it not working good comparing with my old laptop with Broadcom 4313. Here is a guide that explains how to do this in more detail: The output will look similar to this: Linux 4.5.2-040502-generic #201604200335 SMP Wed Apr 20 07:37: x86_64 x86_64 x86_64 GNU/LinuxĪs You can see here, in my case I have chosen to upgrade to kernel version 4.5.
To check Your current kernel version, open up a Terminal enter the following command: uname -a
Upgrading Your kernel may seem difficult, but it is actually fairly straight forward, provided that there are newer versions packaged and available (which is almost always the case). If low battery charge is not the issue (which it may well be, based on Your description), one thing that may fix Your issue would be to try a newer kernel version.
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