That version is now dead http://news.softpedia.com/news/ubuntu-17-04-zesty-zapus-has-reached-end-of-life-upgrade-to-ubuntu-17-10-now-519360.shtml
** Changed in: network-manager (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1692714 Title: Unstable Wifi: re-Authentication fails after wifi drops and reconnects Status in network-manager package in Ubuntu: Invalid Bug description: I see frequent disconnects due to reason=4, which would be o.k. if reconnects worked fine. However often on reconnects 4-way handshake times out and I'm prompted to re-enter our wifi pass-phrase, sometimes as frequent as every few minutes - a major annoyance :-( Problem seems to depend a bit on network traffic. However only my notebook with ubuntu 17.04. seems to be affected. Two iphones, an android phone and a chromebook seem to have no wifi problems at all. Also, when I set up wls2 manually in /etc/network/interfaces I haven't seen failed reconnects so far. I have had this problem since 16.04. Various work arounds suggested on the web like changing wifi channel, disabling IPv6, or disabling DHCP haven't affected this problem. ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: network-manager 1.4.4-1ubuntu3 ProcVersionSignature: Ubuntu 4.10.0-21.23-generic 4.10.11 Uname: Linux 4.10.0-21-generic x86_64 ApportVersion: 2.20.4-0ubuntu4 Architecture: amd64 CurrentDesktop: GNOME Date: Mon May 22 22:34:01 2017 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2016-08-28 (267 days ago) InstallationMedia: Ubuntu-GNOME 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160720) IpRoute: default via 192.168.2.1 dev wls2 proto static metric 600 169.254.0.0/16 dev wls2 scope link metric 1000 192.168.2.0/24 dev wls2 proto kernel scope link src 192.168.2.129 metric 600 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown NetworkManager.conf: [main] plugins=ifupdown,keyfile [ifupdown] managed=false NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true SourcePackage: network-manager UpgradeStatus: Upgraded to zesty on 2017-04-14 (38 days ago) nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.4.4 connected started full enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1692714/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp