Office Networking problems

Lets see if you can offer me some assistance. Im at work and im trying to connect one of our desktops through another computer, i bought the leviton router and was basically going to use the router as a splitter. Before I drilled holes in walls to pull the cord through I gave it a dry run and looped it back to the computer that had the internet to begin with i just put the router in line. ex. Wall Jack---------Router--------computer.


My intentions were.... wall jack-----Router---------Computer #1
/
/
/
Computer #2



Guess what.... it dint work, I was getting no packets back to computer#1?

is this router even compatable? whats going on boss?