wifi looses 80% plus packets with 2000msec latency after software update.

[MJ King]

16.04.1 BCM WL drivers.
mj@mj-SVF15A18CXB:~$ lspci -nn -d 14e4:
07:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu8
ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
Uname: Linux 4.4.0-45-generic x86_64
NonfreeKernelModules: nvidia_uvm wl nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Nov 9 11:27:28 2016
InstallationDate: Installed on 2016-10-08 (31 days ago)
InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: bcmwl
UpgradeStatus: No upgrade log present (probably fresh install)