Issue with NAC

#1
I have an old PC having inbuilt modem(attached to the motherboard). Recently upgraded from DSL to this high bandwidth Cable plan https://www.acanac.com/quebec-cable-internet-detail/?package=cable10&term=12&usage=Capped. Is there any other way to connect the internet to that PC? This one is an old model and is having a faulty Ethernet port.
 


#2
I think I need to dumb this one and buy a new one.
 


This website is not affiliated, owned, or endorsed by Microsoft Corporation. It is a member of the Microsoft Partner Program.