I can confirm this bug which I can reproduce since many Ubuntu releases. This is why I switched to Fedora --> No problems! I can confirm, that restarting Network Manager CAN help, but not always! The best thing to do is to restart Network Manager and immediately refresh a web page. Pinging doesn't work reliable. This time, I can reproduce this bug with Ubuntu 17.04 Alpha/Beta. I attached some log messages if this can help.
** Attachment added: "Log-Message.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1566987/+attachment/4831591/+files/Log-Message.txt -- 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/1566987 Title: No internet connection through WLAN although connected to network Status in linux package in Ubuntu: Confirmed Bug description: In a fresh install of Kubuntu 16.04 on a ThinkPad t460s, I can connect wireless to the local WLAN, but I don't have an internet connection. A ping to the router doesn't work in that case. After some minutes, the connection usually (but not always) works. A LAN connection through the same router works, too. It seems that the problem doesn't occur in every WLAN, but in my home network (using an O2 box 6431) it always does. The problem is reproducible with a Kubuntu Live CD/USB. The following steps did not solve the problem: - Reconnect to WLAN - Using kernel 4.6 or 4.7 - Restarting NetworkManager and networking service - Disable IPv6 - Factory reset of the o2 box - Restart of the o2 box (sometimes it helps temporarily) --- ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: KDE DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2016-04-04 (294 days ago) InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323) Package: linux (not installed) Tags: xenial Uname: Linux 4.7.4-040704-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1566987/+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
