ramiro, thank you for reporting this and helping make Ubuntu better.

Could you please provide the missing information from
https://wiki.ubuntu.com/Kernel/LinuxWireless ?

** Description changed:

- Hey guys, 
- i'm having this issue with BCM43142 802.11b/g/n [14e4:4365] (rev 01) on 
Ubuntu 16.04 LTS,
- The WiFi connection have really slow signal, WiFi bars moves constantly,
- It is also really unstable, i have to reconnect all the time.
+ With Ubuntu 16.04 my WiFi connection is really unstable. I have to
+ reconnect all the time. Also, the WiFi signal icon's bars moves
+ constantly. This has been going on for the last couple years.
  
- The connection by cable works good, and also WiFi is working fine on other 
devises (computers and phones).
-  
- I have this issue for a couple of years now,
- I'm new in this, i don't know to much about bug reporting, Sorry if something 
is wrong. 
- Thanks
+ The connection by cable works good, and also WiFi is working fine on
+ other devices (computers and phones).
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-77-generic 4.4.0-77.98
  ProcVersionSignature: Ubuntu 4.4.0-77.98-generic 4.4.59
  Uname: Linux 4.4.0-77-generic x86_64
  NonfreeKernelModules: nvidia_uvm wl nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ramiro     2258 F.... pulseaudio
   /dev/snd/controlC0:  ramiro     2258 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu May 11 09:32:45 2017
  HibernationDevice: RESUME=UUID=03160791-c9a1-46df-abdf-3d285a1c222b
  InstallationDate: Installed on 2015-04-12 (760 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: LENOVO 20292
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-77-generic 
root=UUID=5340c20f-48e6-409f-8f40-a18afa361162 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-77-generic N/A
   linux-backports-modules-4.4.0-77-generic  N/A
   linux-firmware                            1.157.8
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-05-08 (368 days ago)
  dmi.bios.date: 04/04/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8DCN39WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: VIUU4
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900059WIN
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo IdeaPad Z410
  dmi.modalias: 
dmi:bvnLENOVO:bvr8DCN39WW:bd04/04/2014:svnLENOVO:pn20292:pvrLenovoIdeaPadZ410:rvnLENOVO:rnVIUU4:rvr31900059WIN:cvnLENOVO:ct10:cvrLenovoIdeaPadZ410:
  dmi.product.name: 20292
  dmi.product.version: Lenovo IdeaPad Z410
  dmi.sys.vendor: LENOVO

** Tags added: bios-outdated-8dcn40ww

** Changed in: bcmwl (Ubuntu)
   Importance: Undecided => Low

** Changed in: bcmwl (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1690138

Title:
  [14e4:4365] (rev 01) Slow and unstable WiFi signal.

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