Most homeowners hire an electrician to install Ethernet cables and ports. Depending on the complexity of the computer network, the project can take up to 30 to 40 hours. If you're having network issues, a computer specialist can troubleshoot and repair problems. Repairing a computer network costs between $100 and $230.
No, you shouldn't run Ethernet cables through air ducts or along vents. This is unsafe and against local building codes in most cases. It's best to work with a licensed electrician and defer hardware planning to them. They'll know how to best route the cables through your home efficiently, safely, and in compliance with building codes.
A hardwired computer network generally provides faster internet speeds than Wi‑Fi. Ethernet cables are also known for providing superior security and reliability. Additionally, the more devices that are connected to a Wi-Fi network, the slower the available speeds are. If you need a secure and faster connection, consider connecting your computer to the network via an Ethernet cable.