I recently bought a TP-Link PLC connection to connect my pc via LAN to the router, as WiFi coverage isn't that good on my room. However recently my powerline connector has been running at lower than 20% of it's speed (I'm getting about 7-8 Mbps download and 1-1.5 Mbps upload on a 48-49.5 Mbps and 4.8-4.9 Mbps uploadconnection), and it's even reporting the wrong ISP on speedtests and networking apps. It's my first time dealing with PLCs and I'm positive it doesn't have to do with either my PC (both Linux and Windows produce results within margin of error) or my electrical connection because my brother gets constant 45-47 Mbps downlads. Has anyone experienced something similar? If yes, how did you fix it?