Somewhere in your setup you need a router if you are to share an Internet connection. A switch is used for building a network, not usually what folk want when they want to share an Internet connection. That is:
Internet -> ROUTER -> then to the switch(es).
I'm having some issues sharing an Ethernet data port RJ45.
My setup is like this: in the basement of our building is the switch distributing to all the different ports in the building.
At one of the ports, I would like to share the connection between several computers. For this purpose I have bought (several) Network switches, eg TP LINK, however, when nothing happens - connecting from ethernet port to ethernet switch is fine, but when I connect computers to the switch, i get no line.
Any ideas what this can because of?