On both Ubuntu and Ubuntu Gnome, I have working wifi in the installer, but not after. There is no wireless device in the network settings, and I've tried the following with no luck:
Here are some details:
$ lshw -C Network *-network description: Wireless interface product: BCM43602 802.11ac Wireless LAN SoC vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:03:00.0 logical name: wlp3s0 version: 01 serial: f4:5c:89:8e:0f:79 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=brcmfmac driverversion=126.96.36.199 firmware=01-ea662a8c latency=0 multicast=yes wireless=IEEE 802.11abgn resources: irq:63 memory:c1400000-c1407fff memory:c1000000-c13fffff
$ lspci -nn | grep 0280 03:00.0 Network controller : Broadcom Corporation BCM43602 802.11ac Wireless LAN SoC [14e4:43ba] (rev 01)
Edit: It seems Ubuntu is incorrectly treating the adapter as wired on every reboot. Closing and re-opening the lid seems to temporarily fix it for whatever reason.