Wireless Connection stays disconnected even after multiple attempts to fix it in Ubuntu 16.04

Question

I am new to Ubuntu, days old, so I'm pretty much clueless to most of the programming. I have been trying to set up my wireless network but nothing seems to work. For additional information I have a G750JM laptop. I installed the driver from Additional Drivers in Software & Updates. I used the command lspci to check my Network controller and got

Broadcom Limited BCM4352 802.11ac Wireless Network Adapter (rev 03)

but when I check the connection in iwconfig

lo        no wireless extensions.

enp4s0    no wireless extensions.

I get this output. The I followed this video https://www.youtube.com/watch?v=nlLS8d4Z09c and that didn't help. Next i found the command service network-manager restart that i found in askUbuntu. The network shows life by saying the the wireless network is disconnected and seems to try to reconnect but doesn't. I followed a few more instructions on Ask Ubuntu, those didn't help either, even though they were expertly written and easy to follow.

that's one Installing Broadcom Wireless Drivers

the command nmcli devgives output

enp4s0  ethernet  connected  Wired connection 1 
lo      loopback  unmanaged  --

when I use the command sudo lshw -C network I get the output

*-network UNCLAIMED     
       description: Network controller
       product: BCM4352 802.11ac Wireless Network Adapter
       vendor: Broadcom Limited
       physical id: 0
       bus info: pci@0000:03:00.0
       version: 03
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:eda00000-eda07fff memory:ed800000-ed9fffff
  *-network
       description: Ethernet interface
       product: QCA8171 Gigabit Ethernet
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: enp4s0
       version: 10
       serial: 40:16:7e:0e:87:0f
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=alx duplex=full ip=192.168.0.3 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:33 memory:edb00000-edb3ffff ioport:d000(size=128)

I then used the first answer in this question How to install software or upgrade from an old unsupported release?

Reading package lists... Done
W: The repository 'http://old-releases.ubuntu.com/ubuntu xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://old-releases.ubuntu.com/ubuntu xenial-updates Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://old-releases.ubuntu.com/ubuntu xenial-backports Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://old-releases.ubuntu.com/ubuntu xenial-security Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/xenial/multiverse/source/Sources  404  Not Found
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/xenial-updates/multiverse/source/Sources  404  Not Found
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/xenial-backports/main/source/Sources  404  Not Found
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/xenial-security/multiverse/binary-amd64/Packages  404  Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.

Then I used the second answer and nothing either.

My question is, how to I make sure that My wireless networks, and stays working?

Thank you for reading.

score 0 · Accepted Answer · answered Jan 04 '17 at 02:45

0

I had many wireless problems on my older HP laptop.Finally gave up and disabled internal card(some kind of combo bluetooth/wifi card).Now using TP -Link dongle,and it works fine.This is not a solution if you need bluetooth,unless you can find a dongle that does that.This one does not have linux drivers available,but it still works,right out of the box,without installing any new drivers.Hope this helps.

answered Jan 04 '17 at 02:45

Bob

131

I'll keep that in mind but I am hoping to code my way out of this mess. If not now, eventually I will figure it out and post the answer. I gave up on this venture for now and am using an ethernet cable. – DJ. Aduvanchik Jan 04 '17 at 02:47
necessity required me to get a dongle, it worked within seconds. Kinda disappointed I couldn't get a coding solution, but this will have to work, thank you. – DJ. Aduvanchik Jan 06 '17 at 01:11

Wireless Connection stays disconnected even after multiple attempts to fix it in Ubuntu 16.04

1 Answers1