I have 2 atv4's in two rooms in my home. Both are wired to my tp-link n/ac speed archer c8 router. I'm using 300mbps cable internet. The cables are all cat6. One is from amazon. Another is from monoprice. I installed Speedtest app on the atv's. On wifi my speeds are right at 300 on both atv's, but wired, speeds only reach around 50-80. I've even wired the atv's directly to my modem, bypasssing the router, and the speeds still only reach 50-80. Any idea why? Thanks.