I'm experiencing the same issue. Tried to restart NetworkManager, but the applet does not show devices. I was able to get working network connection using a dell ethernet dongle with dhcpclient.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1681884 Title: [Dell XPS 9360] NetworkManager fails to detect wifi device in 17.04 Zesty Status in network-manager package in Ubuntu: New Bug description: Upon a "clean" upgrade (No software installed except base system from ISO, then upgrade) from 16.04 LTS -> 16.10 -> 17.04 on a Dell 9360, Network Manager fails to detect wiFi device in 17.04 Zesty after a few boots/updates. Wifi works initially. I apply Zesty updates. I autoremoved some packages. I reboot. Wifi is killed. I cannot report the bug using "ubuntu-bug" because I have no network connectivity. The wifi device was not detected despite re-enabling Dell's Xenial repos after upgrades. I have a Dell DA200 adapter USB-C to HDMI/VGA/Ethernet/USB 3.0. Plugging ethernet cable into that does not work either. It seemed the adapter was "half" recognized. Something did show up in Network Manager after fiddling with settings, but no network connectivity ever occurred. I can create a separate bug for that if needed. I subsequently had to revert back to 16.04 LTS with a clean install to report the bug. I'm not so familiar with what the Dell repos provide for Xenial. Do they provide the drivers needed for the wifi? Or is that supplied through the kernel? Could the autoremove have caused the wifi drivers to be removed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1681884/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
