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fix wifi on ubuntu 17/macbook pro 13 2015
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network-ubuntu-macbook.md

Ubuntu 17.04 on 2015 macbook pro 13 - fix for slow wifi

sudo gedit /etc/modprobe.d/brcmfmac.conf

enter:

options brcmfmac qos=0
options brcmfmac nohwcrypt=1

then:

sudo modprobe -r brcmfmac

sudo modprobe brcmfmac
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nikhan commented May 9, 2017 •
edited

appears to work for a while and then becomes slow again over time.
the module reloading may be the thing that makes it fast again. (and maybe suspend is messing up the module?)
restart the network upon resume

sudo vi /etc/systemd/system/restartnetwork.service

[Unit]
Description=restart networking on resume
After=suspend.target

[Service]
Type=oneshot
ExecStart=/bin/bash -c "modprobe -r brcmfmac; modprobe brcmfmac";
RemainAfterExit=true
ExecStop=

[Install]
WantedBy=multi-user.target sleep.target

systemctl daemon-reload
systemctl enable restartnetwork.service
systemctl start restartnetwork.service

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