Chicago's internet scene comes down to two big players: Xfinity cable and AT&T Fiber. Which one wins depends on your neighborhood. Fiber is expanding fast, but a lot of the city still runs on Comcast cable, and that means shared bandwidth and slower uploads.
the dominant cable provider across most of Chicago and its suburbs.
a wireless option with strongest coverage downtown and in the Loop.
Xfinity cable node congestion during winter evenings when more people are home and streaming.
Comcast's upload cap of 35 Mbps on most cable plans hurts remote workers on video calls.
Aging wiring in older South Side and West Side buildings can bottleneck even gigabit plans.
Snow and ice can degrade outdoor cable connections and cause intermittent packet loss.
Look up AT&T Fiber at your address. Getting symmetric upload is transformative if you work from home.
Still on Xfinity? Make sure you have their DOCSIS 3.1 modem. It handles peak-hour traffic much better than the older ones.
Keep your router away from exterior walls. Chicago's wild temperature swings can quietly affect equipment near them.