Can rj-11 connect laptop to a local area network?
A true local area network requires connectivity via cat5 or an
RJ-45 connector. RJ-11 is simply a telephone wire that does not
have enough pins to connect to a LAN. If all computers on a LAN are
using RJ-11 connections, you can setup a dial-up network.
Unfortunately, the speed will drastically decrease. It is possible,
however, to buy a cat5 (RJ-45) connector that converts it to USB.
Or you can buy a wireless router and card for your laptop.