An update on this. I installed kernel 5.0, but the same issue occured. I did notice that my wi-fi can be re-activated using the keyboard wireless switch (Fn-Wifi). I have 2 wi-fi networks available, the normal one and the 5G one. I had been using the 5G one, but switched to use the normal one. My wi-fi came back up, and resumes ok after being in standby.
I re-booted using the kernel 5.1.rc4, and it works ok as above. I don't remember trying the physical wi-fi function key before, so it is possible it would have worked in the Ubuntu current mainline kernel 4.18, which I will test next. Could the issue be 5G wifi specific? -- 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/1824038 Title: Network adapter doesn't work after returning from suspend Status in linux package in Ubuntu: Confirmed Bug description: Fresh install of Ubuntu 18.04 (Linux kernel 4.18.0-17-generic #18~18.04.1-Ubuntu SMP Fri Mar 15 15:27:12 UTC 2019). Network adapter does not resume after suspend. Wifi not available. References to a fix for r8169 driver found. Tried the following fixes: 1. sudo service network-manager restart. This did not work. 2. Script in /lib/systemd/system-sleep/r8169-refresh as described in https://askubuntu.com/questions/1029250/ubuntu-18-04-ethernet-disconnected-after-suspend This did not work. 3. Updated kernel to 4.20.17. This did not work. There is reference to r8169 fixes in version 4.21, but this is not available on the ubuntu mainline kernels https://kernel.ubuntu.com/~kernel-ppa/mainline/ Possibly related to bug #1752772 --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2019-04-08 (2 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) Package: linux (not installed) Tags: bionic Uname: Linux 4.20.17-042017-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/1824038/+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