Every router ive tried to set up has just worked no mac whatsit or anything.can all the pcs on the network log onto the router? Also no router ive ever had anything to do with has needed crossover cable,neither do switches only direct connnection
Also cant you take the switch out of the equation and just use the router?
Another option is blow the in house network out and use your modem and Homplug devices you only need 1 lan connection and you can connect all the other pcs via the electric
http://www.solwise.co.uk/net-powerline.htm im sure one of the students in the house has a rich father to play for these lol
EDIT sorry reread your post and im a bit lost now.You state each room has its own modem does this mean you would all have to pay or is this included in the rent? if each room has a modem why is there a switch in your room?Im confused