Network Cable Problem

I have a poblem sharing internet with another computer I connected the network cable, at first it was working but later on I tried again(days later)it say's there's no or limited network connection.does anyone know how I can fix this?(I've tried three different network cables but they still say the samething and they are new)

Limited network connection usually means it can access other computers on a local computer but not the Internet. Is your Internet working ok?

Check the router and network settings.

you need to be more specific on HOW the connection is made:

is it like this:

Code:

 modem--router--multiple-systems

or this:

Code:

 modem--systemA--SystemB