@David-TP Yep. I am currently connected that way and tested on two PCs after that long backhaul cable and only get 100mb. I did realize now relooking at the amazon listing I linked they have really...

I have a strange situation. I have the house set as follows: Surfboard Router (Bridge Mode) >> Deco X55 >> Ethernet Cable 100ft to Deco X55 (Outdoor Rated Cat 7 Cable Amazon) >> To PC. Now I used to...