So I got myself Plusnet fibre broadband (great btw, thank you) and a Xbox One X about 6 weeks ago. I only play Gears Of War 5 online. The problem I have is that 90% of my games are very laggy, which is kinda soul destroying. I was wondering if there were any settings in my router I could check that could maybe improve lag?
Router: Plusnet Hub One
D/L Speed: 35.32Mbps
U/L Speed 9.11 Mbps
Packet loss: 0
Xbox multiplayer check says there are no problems with my connection for multiplayer.
It may be worth trying a slightly lower MTU - say 1472, or even as low as 1420. It may make no difference, but unexplained lag is often a sign of packet fragmentation - to confirm that diagnosis (or to find any other cause) you really have to use Wireshark or some other tool to examine the traffic.