Description of problem: After suspending my laptop & waking it up, it loses the ability to use a wired network connection via its Ethernet port. `ip addr` says that the state of enp3s0 is DOWN, and trying to bring it back up with ifup fails with "Error: Connection activation failed: No suitable device found for this connection." In Gnome Settings, Network->Wired says "Cable unplugged". Overall, the computer behaves as though it has no Ethernet port at all. Version-Release number of selected component (if applicable): NetworkManager-1.10.6-2.fc28.x86_64 How reproducible: Always, but it is likely a hardware-dependent issue. Steps to Reproduce: 1. Boot your computer with Ethernet plugged in 2. Suspend the computer 3. Wake it up Actual results: A wired network connection is not available; see the first paragraph of this post. WiFi remains available, though. Expected results: A wired connection should be available: `ip addr` should show the wired connection's state as UP; Gnome Shell should show a Wired Connection available; etc Additional info: This also happened to me on Fedora 27 as of a few months ago. Upgrading to F28 didn't fix it. It is also hardware-dependent, as it doesn't happen on another laptop of mine. Please let me know of any other information/logs I should post here to help debug this.
Please reproduce the problem and then attach the output of: dmesg ip link nmcli -f all device show $IFNAME ethtool $IFNAME
Created attachment 1431001 [details] Outputs of the requested commands, using "enp3s0" as IFNAME.
Seems like your Ethernet card does not detect the carrier after suspend. I guess removing and adding back the kernel module could be of help: sudo modprobe -r r8169 sudo modprobe r8169 You may want to reopen bug 1312006.
Restarting the module did bring my wired connection back up, thanks. I'll reopen that bug & mark this one as a duplicate.
I mustn't have permissions to reopen bugs, so I cloned bug 1312006 instead of reopening it. *** This bug has been marked as a duplicate of bug 1580079 ***