Comment 87 for bug 1240940

@Thomas, have you tried editing the driver settings as suggested in #78?

Note: there is a line in that post that got split at modprobe.d. It should read:

Edit the settings for the driver:
echo "options rtl8723be fwlps=0 swlps=0" | sudo tee /etc/modprobe.d/rtl8723be.conf