1. What is the current network diagram? How do you connect these devices together? I get 1Gbps speeds with my old router Linksys wrt1900acs. I have fibre connection where ethernet (rj45) output comes...

So this problem short. With my computer directly connected to my "modem" with RJ45 cable speed is around 1000Mbps as shown in speed test result https://www.speedtest.net/result/8473391125 But when I...