is it possible to connect a router to another router? because i have 3 computers, my router has 4 ports, the 4th port, i will connect (if possible)to a wireless router (so that my laptop can connect to the internet anywhere in the house).
Yes, on the second router, change the IP address to be in the same range as the first (1st: 192.168.1.1 2nd: 192.168.1.2), disable DHCP and connect the network cable from the 4th port on the first rouuter to a LAN port on the second router. Don't use the WAN or Internet port.