The house is new to me. It was built ~1950 and expanded a few times so we have a mixed bag of construction styles, wiring and plumbing.
I've been reviewing the layout outside and as a long term solution I may run cat5 to the attic outside, then down to all the bedrooms. The side of the house my router is on cannot be seen from the street or the next door neighbors. There is already coax cable lines going up there.
Jon