The finished part of my house is completely wired with cat-5, but devices are becoming much less likely to even have an ethernet port, much less to be sitting a

The finished part of my house is completely wired with cat-5, but devices are becoming much less likely to even have an ethernet port, much less to be sitting around in a single place for it. Of the dozen devices in my room right now, six are able to be connected and, of those, four are.