New Computer Build - BrosTrend AC1200 Won't connect to WiFi


New Member
My OS - Ubuntu Mate 18.04.

I just completed my first computer build. The ethernet works just fine. The WiFi does not and I'm trying to get this to work.
I have a BrosTrend AC1200 Model AC3L Wireless USB Adapter for Linux. I have talked to BrosTrend support and have done the troubleshooting procedure they subscribe to. The answer they gave me is that their driver is installed satisfactorily and I can return the unit if I want.

This is not the answer I want to hear. The attached file has data from a group of commands that I copied from the internet and includes all system information regarding this new build .

Thank you in advance for help.


Can't get the file to open!!! HERE'S the info.

Sun 20 Sep 2020 02:22:14 PM PDT

[email protected]:~$ inxi -Fwz

System: Host: rick-MS-7C02 Kernel: 5.4.0-47-generic x86_64 bits: 64

Desktop: MATE 1.20.1 Distro: Ubuntu 18.04.5 LTS

Machine: Device: desktop System: Micro-Star product: MS-7C02 v: 1.0 serial: N/A

Mobo: Micro-Star model: B450 TOMAHAWK MAX (MS-7C02) v: 1.0 serial: N/A

UEFI [Legacy]: American Megatrends v: 3.70 date: 06/09/2020

CPU: Quad core AMD Ryzen 5 3400G with Radeon Vega Graphics (-MT-MCP-)

cache: 2048 KB

clock speeds: max: 3152 MHz 1: 2018 MHz 2: 3048 MHz 3: 1541 MHz

4: 1756 MHz 5: 1657 MHz 6: 3152 MHz 7: 1491 MHz 8: 2471 MHz

Graphics: Card: Advanced Micro Devices [AMD/ATI] Picasso

Display Server: x11 (X.Org 1.20.8 )

drivers: ati,amdgpu (unloaded: modesetting,fbdev,vesa)

Resolution: [email protected]

OpenGL: renderer: AMD RAVEN (DRM 3.35.0, 5.4.0-47-generic, LLVM 10.0.0)

version: 4.6 Mesa 20.0.8

Audio: Card-1 Advanced Micro Devices [AMD] Device 15e3 driver: snd_hda_intel

Card-2 Advanced Micro Devices [AMD/ATI] Device 15de

driver: snd_hda_intel

Sound: Advanced Linux Sound Architecture v: k5.4.0-47-generic

Network: Card: Realtek RTL8111/8168/8411 PCIE Gigabit Ethernet Controller

driver: r8169

IF: enp34s0 state: up speed: 1000 Mbps duplex: full mac: <filter>

Drives: HDD Total Size: 500.1GB (2.5% used)

ID-1: /dev/nvme0n1 model: WDC_WDBA3V5000ANC size: 500.1GB

Partition: ID-1: / size: 458G used: 12G (3%) fs: ext4 dev: /dev/nvme0n1p1

RAID: No RAID devices: /proc/mdstat, md_mod kernel module present

Sensors: System Temperatures: cpu: No active sensors found. Have you configured your sensors yet? mobo: N/A

Weather: Weather data failure: Sun Sep 20 14:19:00 PDT 2020

Error: weather info downloaded but no data detected.

Info: Processes: 260 Uptime: 1:06 Memory: 1475.4/14004.8MB

Client: Shell (bash) inxi: 2.3.56

[email protected]:~$

[email protected]:~$ ifconfig

enp34s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500

inet netmask broadcast

inet6 2605:e000:1b04:ce7:675e:e672:2bbf:4ca1 prefixlen 64 scopeid 0x0<global>

inet6 2605:e000:1b04:ce7:876:c2a3:8747:f99 prefixlen 64 scopeid 0x0<global>

inet6 fe80::3c3e:b2cc:15ac:8b9e prefixlen 64 scopeid 0x20<link>

inet6 2605:e000:1b04:ce7:0:22c9:d74d:61e4 prefixlen 128 scopeid 0x0<global>

ether 2c:f0:5d:7b:a3:97 txqueuelen 1000 (Ethernet)

RX packets 12804 bytes 8141651 (8.1 MB)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 11996 bytes 2676008 (2.6 MB)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536

inet netmask

inet6 ::1 prefixlen 128 scopeid 0x10<host>

loop txqueuelen 1000 (Local Loopback)

RX packets 1900 bytes 197703 (197.7 KB)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 1900 bytes 197703 (197.7 KB)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

wlx4401bb92f088: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500

ether 44:01:bb:92:f0:88 txqueuelen 1000 (Ethernet)

RX packets 0 bytes 0 (0.0 B)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 0 bytes 0 (0.0 B)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

[email protected]:~$ iwconfig

enp34s0 no wireless extensions.
lo no wireless extensions.

wlx4401bb92f088 unassociated Nickname:"<[email protected]>"

Mode:Managed Frequency=2.412 GHz Access Point: Not-Associated


Retry:eek:ff RTS thr:eek:ff Fragment thr:eek:ff

Power Management:eek:ff

Link Quality=0/100 Signal level=0 dBm Noise level=0 dBm

Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0

Tx excessive retries:0 Invalid misc:0 Missed beacon:0

[email protected]:~$ sudo lspci | grep net

22:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)

[email protected]:~$ sudo lshw -C network


description: Ethernet interface

product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller

vendor: Realtek Semiconductor Co., Ltd.

physical id: 0

bus info: [email protected]:22:00.0

logical name: enp34s0

version: 15

serial: 2c:f0:5d:7b:a3:97

size: 1Gbit/s

capacity: 1Gbit/s

width: 64 bits

clock: 33MHz

capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation

configuration: autonegotiation=on broadcast=yes driver=r8169 duplex=full firmware=rtl8168h-2_0.0.2 02/26/15 ip= latency=0 link=yes multicast=yes port=MII speed=1Gbit/s

resources: irq:34 ioport:f000(size=256) memory:fcc04000-fcc04fff memory:fcc00000-fcc03fff


description: Wireless interface

physical id: 1

bus info: [email protected]:2

logical name: wlx4401bb92f088

serial: 44:01:bb:92:f0:88

capabilities: ethernet physical wireless

configuration: broadcast=yes driver=rtl88x2bu multicast=yes wireless=unassociated

[email protected]:~$ ip addr

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000

link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

inet scope host lo

valid_lft forever preferred_lft forever

inet6 ::1/128 scope host

valid_lft forever preferred_lft forever

2: enp34s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000

link/ether 2c:f0:5d:7b:a3:97 brd ff:ff:ff:ff:ff:ff

inet brd scope global dynamic noprefixroute enp34s0

valid_lft 256823sec preferred_lft 256823sec

inet6 2605:e000:1b04:ce7:0:22c9:d74d:61e4/128 scope global dynamic noprefixroute

valid_lft 594426sec preferred_lft 594426sec

inet6 2605:e000:1b04:ce7:876:c2a3:8747:f99/64 scope global temporary dynamic

valid_lft 510378sec preferred_lft 83486sec

inet6 2605:e000:1b04:ce7:675e:e672:2bbf:4ca1/64 scope global dynamic mngtmpaddr noprefixroute

valid_lft 510378sec preferred_lft 510378sec

inet6 fe80::3c3e:b2cc:15ac:8b9e/64 scope link noprefixroute

valid_lft forever preferred_lft forever

3: wlx4401bb92f088: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000

link/ether 44:01:bb:92:f0:88 brd ff:ff:ff:ff:ff:ff

[email protected]:~$ nmcli dev show


GENERAL.TYPE: ethernet



GENERAL.STATE: 100 (connected)

GENERAL.CONNECTION: Wired connection 1

GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveCo




IP4.ROUTE[1]: dst =, nh =, mt =

IP4.ROUTE[2]: dst =, nh =, mt =

IP4.ROUTE[3]: dst =, nh =, mt =


IP4.DOMAIN[1]: home

IP6.ADDRESS[1]: 2605:e000:1b04:ce7:0:22c9:d74d:61e4/128

IP6.ADDRESS[2]: 2605:e000:1b04:ce7:876:c2a3:8747:f99/64

IP6.ADDRESS[3]: 2605:e000:1b04:ce7:675e:e672:2bbf:4ca1/6

IP6.ADDRESS[4]: fe80::3c3e:b2cc:15ac:8b9e/64

IP6.GATEWAY: fe80::366b:46ff:fe3c:fb6e

IP6.ROUTE[1]: dst = 2605:e000:1b04:ce7::/64, nh = ::,

IP6.ROUTE[2]: dst = ::/0, nh = fe80::366b:46ff:fe3c:fb

IP6.ROUTE[3]: dst = ff00::/8, nh = ::, mt = 256, table

IP6.ROUTE[4]: dst = fe80::/64, nh = ::, mt = 256

IP6.ROUTE[5]: dst = fe80::/64, nh = ::, mt = 100

IP6.ROUTE[6]: dst = 2605:e000:1b04:ce7:0:22c9:d74d:61e

IP6.DNS[1]: 2001:1998:f00:1::1

IP6.DNS[2]: 2001:1998:f00:2::1

GENERAL.DEVICE: wlx4401bb92f088


GENERAL.HWADDR: 44:01:BB:92:F0:88


GENERAL.STATE: 30 (disconnected)




GENERAL.TYPE: loopback

GENERAL.HWADDR: 00:00:00:00:00:00


GENERAL.STATE: 10 (unmanaged)





IP6.ADDRESS[1]: ::1/128


IP6.ROUTE[1]: dst = ::1/128, nh = ::, mt = 256

lines 27-49/49 (END)

[email protected]:~$ netstat -nn

Kernel IP routing table

Destination Gateway Genmask Flags MSS Window irtt Iface UG 0 0 0 enp34s0 U 0 0 0 enp34s0 U 0 0 0 enp34s0

[email protected]:~$ cat /etc/resolv.conf

# This file is managed by man:systemd-resolved(8). Do not edit.

# I deleted all the comment lines ... Rick 19Sep2020


options edns0

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Last edited:


Staff member
Gold Supporter
lspci does not need to be sudo. My laptop shows nothing with |grep net. It needs to be |grep Network -with capital N

BUT you have a USB unit and the command needs to be just
Did you have the unit plugged in first and then start your computer second, so it can be recognised?


New Member
lspci does not need to be sudo. My laptop shows nothing with |grep net. It needs to be |grep Network -with capital N

BUT you have a USB unit and the command needs to be just
Did you have the unit plugged in first and then start your computer second, so it can be recognised?
Well I feel really stupid!!
Your answer gave my brain a jolt. I just built the computer and are not familiar with all the connections so I tried another USB connection and IT WORKED.

Thanks for the help.\\R


Super Moderator
Staff member
Gold Supporter
@pizzipie - G'day Rick and welcome to :)

Congrats on getting it sorted. If you get a chance, swing over to Member Introductions and say Hi and meet a few of The Gang.

Enjoy your Linux.

Chris Turner

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