I've just noticed this has resolved for me. See below, the errors do not repeat and I connect to the network. However, I have recently updated my router firmware to my knowledge it's still configured like it was (40/80 Mhz channels). I'm running the same nvidia-375 that was causing errors before.
Description: Ubuntu 16.10 Release: 16.10 4.8.0-46-generic dmesg | grep brcm [ 6.101044] usbcore: registered new interface driver brcmfmac [ 6.101082] brcmfmac 0000:02:00.0: enabling device (0000 -> 0002) [ 6.245598] brcmfmac 0000:02:00.0: Direct firmware load for brcm/brcmfmac43602-pcie.txt failed with error -2 [ 6.754207] brcmf_c_preinit_dcmds: Firmware version = wl0: Nov 10 2015 06:38:10 version 7.35.177.61 (r598657) FWID 01-ea662a8c [ 6.786602] brcmf_cfg80211_reg_notifier: not a ISO3166 code (0x30 0x30) [ 6.794712] brcmfmac 0000:02:00.0 wlp2s0: renamed from wlan0 [ 520.395510] brcmf_inetaddr_changed: fail to get arp ip table err:-23 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1630324 Title: Broadcom wifi dies in 60s cycles with 4.8 kernel Status in linux package in Ubuntu: Confirmed Status in linux package in Fedora: Unknown Bug description: I have a Dell XPS 13 9350 with a Broadcom wifi adapter. Wifi connects fine, but dies for around 5-10s (the signal dies completely, tools like wavemon show "no interface data") in regular cycles of about 60s. dmesg logs the same brcmfmac errors every minute or so: "brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code (0x30 0x30)". network-manager's icon doesn't change however (remains as if the adapter was connected). This issue started to affect me when using kernel 4.8 on Ubuntu 16.04. I previously used kernel 4.7 and did not experience this bug. I booted the 16.10 daily build and experienced exactly the same errors. $ lspci | grep BCM4350 3a:00.0 Network controller: Broadcom Limited BCM4350 802.11ac Wireless Network Adapter (rev 08) $ dmesg | grep brcm [ 5.864558] brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Oct 22 2015 06:16:26 version 7.35.180.119 (r594535) FWID 01-e791c176 [ 5.898803] brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code (0x30 0x30) [ 74.991987] brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code (0x30 0x30) [ 142.503220] brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code (0x30 0x30) ... $ lsb_release -rd Description: Ubuntu 16.04.1 LTS Release: 16.04 ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: network-manager 1.1.93-0ubuntu4 Uname: Linux 4.8.0-040800-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: Unity Date: Tue Oct 4 14:15:02 2016 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2016-05-26 (131 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) IpRoute: default via 192.168.0.1 dev wlp58s0 proto static metric 600 169.254.0.0/16 dev wlp58s0 scope link metric 1000 192.168.0.0/24 dev wlp58s0 proto kernel scope link src 192.168.0.29 metric 600 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH wlp58s0 wifi connected /org/freedesktop/NetworkManager/Devices/0 Guava Guest 1 68ae8dc2-ab23-42ef-9e41-ac8e9d91385a /org/freedesktop/NetworkManager/ActiveConnection/0 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- -- nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1630324/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
