Outdated firmware instructions lead to random network drops and "Limited Connectivity" errors.
Broadcom wireless cards are notoriously tricky on Linux due to proprietary firmware restrictions. To get the BCM94312HMG operating on distributions like Ubuntu or Linux Mint, you must pull the updated STA source or firmware installers. For Ubuntu / Linux Mint / Debian broadcom bcm94312hmg driver updated
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Open your terminal and purge any conflicting default drivers by running: sudo apt-get purge bcmwl-kernel-source Outdated firmware instructions lead to random network drops