Wifi crashes regularly and only returns after a minute or so

[Wim Van Leuven]

At regularly intervals, wifi fails and returns after a few minutes. Only symptom I could find is this message in kern.log:

"ERROR @wl_notify_scan_status : wlan0 Scan_results error (-22)"

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu0.1
ProcVersionSignature: Ubuntu 3.16.0-38.52~14.04.1-generic 3.16.7-ckt10
Uname: Linux 3.16.0-38-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
CurrentDesktop: MATE
Date: Mon May 25 19:23:36 2015
InstallationDate: Installed on 2015-05-18 (7 days ago)
InstallationMedia: Ubuntu MATE 14.04.2 "Trusty Tahr" - LTS amd64 (20150323)
SourcePackage: bcmwl
UpgradeStatus: No upgrade log present (probably fresh install)