Fiber optic modem (ONT): Most fiber connections require an Optical Network Terminal (ONT), provided by your ISP. Compatible router: Verify that your router supports fiber optic input (look for an SFP or WAN port labeled "ONT" or "Fiber"). Wi-Fi coverage might feel like magic, but the underlying behavior of radio waves is governed by physics, signal attenuation models, environmental absorption rates, and antenna radiation patterns. Most connectivity problems, slow speeds, unstable ping, dead zones, originate not from hardware. We are finally getting fiber optic in our area and the installation will occur in the upcoming weeks. They are going to dig a trench and run the fiber optic to our house. The technician I spoke with today recommended having the line come in the front of our house through the window frame into our. (Right) The router has better wireless coverage with horizontal use Tip 1. Place your wireless router in a central location.