The previous owners of my house ran two Ethernet cables from the fiber modem to a point near the center of the house, where they enter the wall... and apparently never exit it. - eviltoast

I’m considering clipping the cable where it enters the wall, terminating it, and buying a PoE adapter so that I can see if a single wifi router mounted in that spot will cover the whole house.

Is this a terrible idea? What should I look out for?