I’m having AT&T install fiber as soon as I get a dig team out to run a line up to my house. Once it’s installed I plan to run additional lines from the router to other rooms in the house. The tech that came out said the main line bringing the signal into my house must go directly into the router, and not into an Ethernet switch. The question I forgot to ask was, can I then run a line out of the router and into an Ethernet switch that has additional ports to run lines to my other rooms? Thanks.