I recently bought an Xbox Series X and still have access to an old PS4 which is being sold.   Both consoles have 160–180 ping with a wired connection. I also have a Mac Mini which has been connected with the same cable and the ping is consistently bewteen 9 and 11. The tests were all ran within a few mins of each other, the PS4 and Mac tests were done via using speedtest.net and the Series X tests have been run on the system UI. All other devices were disconnected from the internet during the tests.   I tried various toubleshooting steps on the Xbox but when I discovered that the PS4 is doing the same I'm thinking it's something a bit more technical.   I'm on the NBN FTTN 50 plan. Download speeds are usually in the region of 46–52Mbps and upload is around 16–18Mbps.   Not really sure where to go next, any help would be greatly appreaciated – thanks. ... View more