system -> preferences -> network connectionsit does open a pop-up box and there is a tab for Wired but in the Wired tab there are no entries. No entries!I have a wire... [by PBrimacombe]
I originally configured my desktop lucid lynx system to boot on our wireless network. Later I added a 100 Mbps powerline/100baseT adapter set. The system still boots to the wireless network and ignores the wired network.
I installed 14.04 and was able to do plenty of regular software updates and could connect to the internet normally at first. I only use a wired connection. I had 12.04 installed on the same machine, same hardware and ethernet cable, and never had network issues.
Now when I boot up it looks like I connect at first but it sometimes will not connect to my router.