What Is Fiber Internet (and Why It’s Different from Cable)
If you have shopped for home Internet recently, you have probably seen the word “fiber” everywhere. Here is the simple version: fiber Internet is the most reliable Internet you can get to your home, and it works on a completely different technology than cable.
This guide explains what fiber Internet is, how it differs from cable and DSL, and what you can actually do with it at home.
How fiber Internet works
Fiber Internet sends your data as pulses of light through a thin glass strand. The strand is about the width of a human hair, and the light moves through it at almost the speed of light.
Cable Internet, by comparison, sends data as electrical signals through copper coaxial cables, the same kind of cable that originally carried television. DSL uses regular phone lines.
Two things follow from that difference. Light travels faster than electricity through copper, with much less signal loss over distance, which is why fiber can reliably deliver gigabit speeds. And fiber connections are symmetrical, meaning you get the same upload speed as download speed. Cable upload speeds are typically 10 to 20 times slower than download.
Fiber vs cable Internet: what actually changes for you
The technical difference turns into a practical one at home.
- Download Speed. Fiber plans commonly start at 400 Mbps and go up to 1 Gbps or higher. Cable can hit similar download speeds in some markets, but real-world performance often drops during peak evening hours when many neighbors are online at once.
- Upload speed. This is the biggest gap. If anyone in your house works from home, posts videos, plays online games, or backs up photos to the cloud, upload speed matters as much as download. On a 1 Gbps fiber plan, you upload at 1 Gbps. On a 1 Gbps cable plan, you typically upload at 35 to 50 Mbps.
- Reliability. Fiber is not affected by the weather the way cable can be. There are fewer outages during storms, and connections degrade more gracefully when something does go wrong.
- Latency. Fiber has lower latency, which is the delay between you clicking something and your computer getting a response. Lower latency means smoother video calls, more responsive online gaming, and fewer “waiting” moments when you load a page.
What you can do with fiber Internet
For most homes, fiber removes the headaches you do not realize you have on slower plans:
- Video calls without freezing. Two people on Zoom in the same house at the same time, neither of them buffering.
- 4K streaming on multiple TVs at once. Netflix, Hulu, Disney+, and live sports are running in parallel rooms without one slowing down the other.
- Cloud uploads that finish in minutes, not hours. Photo libraries, work files, and game updates stop being an overnight wait.
- Smart home that stays connected. Cameras, doorbells, and thermostats all on the same connection without slowdown.
- Working from home with multiple devices. Your laptop, your VPN, a video meeting, and a partner doing the same thing in the next room, all without anyone dropping.
Is fiber Internet available in central Wisconsin?
Solarus has built fiber across central Wisconsin. The current footprint includes Wisconsin Rapids, Plover, Stevens Point, Port Edwards, Nekoosa, and Manawa, with continued expansion planned.
If you live in any of these towns, you can check availability for your specific address on the Solarus home Internet page and see which speeds are available where you live.
