I've been trying to connect my Xbox one to my internet via an Ethernet cable and have been running into issues. When I connect it my Xbox says I'm connected to the internet but it also says I can't use the multiplayer or anything else that the internet is for. When I test my multiplayer connection it tells a me it can't finish the multiplayer tests and that if it contuinuea to not work there may be problems with my network.
Please give us a little more information. To what are connecting your Xbox? Router, modem, switch? Make and model?