Yes, you can daisychain multiple smaller hubs, or buy a router.
Check BIOS settings, make sure that the adapter is enabled. Check that the cable is not damaged and working properly. If you have burned the port. You can get a PCI extension port with Network Interface Port.
If your not using it then don't worry about it. But motherboards don't come with a modem port. A modem port is on an add on card like a PCI Modem. Take out the old one and insert another and load the drivers from the included CD that is the cheapest way.
Port Triggering opens a port when a PC on the network initiates communication through another port.
a. Replace the motherboard. b. Disable the modem port and install a modem card in an expansion slot. c. Use an external modem that connects to the serial or USB port. d. Return the motherboard to the factory for repair. If the motherboard is important, replace the motherboard. Other components may be failing and undetected. If the motherboard isn't in a critical piece of hardware, I would simply turn the modem off in the BIOS and add a new modem in an expansion slot.
Ethernet port
Lan Card provides a port for a network cable to connect the pc to a network.. LAN : Local area network or Ethernet Card and Network Card
Parrot Port
That would be a network printer.
It's an Ethernet port used for network connections.
For your computer: Motherboard with an ethernet port Or a network card which isn't too expensive, I personally recommend TP LInk very reliable
A cloning port is a specialized endpoint on a switch that allows network administrators to replicate or copy network traffic from one port to another. This is often used for troubleshooting, network monitoring, or security analysis purposes. By using a cloning port, administrators can monitor and analyze data without disrupting the flow of traffic on the network.