muddy46 :
Thank you @USAFRet and @whoratesit You both have been helpful. Since I will now be working from home, and wireless connections are not permitted due to security concerns, and my router has only the 1 port built in, I will be going with the easy-smart version.
OK, hang on.
A "1 port router" is actually not standard. Generally, a consumer grade router has 4 LAN ports on the back.
Is this a Router, or a modem/router, or just a Modem?
Make/model of this device, please.
(If it is a 'modem', a switch will not work)