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I've just got a new PCI Express Wi-Fi adapter: TP-Link Archer T6E AC1300. 

$ lspci -knn |grep Net -A2
06:00.0 Network controller [0280]: Broadcom Limited BCM4360 802.11ac Wireless Network Adapter [14e4:43a0] (rev 03)
Subsystem: Broadcom Limited BCM4360 802.11ac Wireless Network Adapter [14e4:0619]
Kernel driver in use: wl
Kernel modules: bcma, wl

I have some problems with setting it up in Ubuntu 16.04.

The problem is that this "dual band" device uses one of its bands to hotspot network with bssid TP-LINK_4DF618 (I can see it in Network Manager on the same computer and from other devices as well; it disappears when I turn the computer off).

I don't know how to turn if off. (see UPD)

As a result the card works only with 2.4GHz networks. But the reason I've got this new adapter is 5GHz networks =(

I've already tried bcmwl-kernel-source and broadcom-sta-dkms drivers and even tried to install a driver from the Broadcom website.

I would be grateful for any help.

UPD: Sorry, I misinterpreted results of my investigation. This mysterious network was from an other source that by coincidence appeared at the same time.

The source of my problems was in a settings of my router (Zyxel Keenetic Air). My router automatically assign some "optimal" channel for 5GHz network and apparently didn't work with this adapter. After I had chosen a channel manually everything started working well.

wireless-script.sh output

avsmal
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    The correct driver is bcmwl-kernel-source. Installing others does nothing at best and at worse it may be the source of conflicts. Now, I have no explanation for the phenomenon of having a hotspot you didn't configured (or did you?). This is a case for the experts, @chili555 –  Feb 26 '17 at 20:14
  • Or also @Pilot6 ... –  Feb 26 '17 at 20:15
  • @CelticWarrior no, I didn't configured it. It kind of "build-in" setting of the device. I didn't find any evidence, that Ubuntu manages it. Even if I turn of wireless with modprobe -r wl this mystery network still remains. I think probably that it is possible to turn it off using windows software that comes with it, but I don't have any windows machine where I can check this. – avsmal Feb 26 '17 at 21:48
  • @CelticWarrior Thanks for your comments, I finally figured it out. That was lame =) – avsmal Feb 26 '17 at 23:18
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    Please see: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1574196 – chili555 Feb 27 '17 at 00:08
  • Problem had nothing to do with Ubuntu. – Fabby Feb 27 '17 at 08:16
  • @chili555 thanks, this is exactly an issue I had. – avsmal Feb 27 '17 at 23:41

1 Answers1

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If the hotspot is the problem, remove it with

sudo rm /etc/NetworkManager/system-connections/Hotspot

Reboot

Jeremy31
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  • The problem remains. This network is not managed by Ubuntu. It remains even if I do modprobe -r wl. – avsmal Feb 26 '17 at 21:44
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    If you can do sudo modprobe -r wl and it still exists try rfkill block wifi if it exists after that, the source is not your computer – Jeremy31 Feb 26 '17 at 22:10
  • you are right. I misinterpreted results, clearly the source is not my computer. – avsmal Feb 26 '17 at 23:04