How do I tell if it's CenturyLink / Quantum Fiber or my own equipment?

4-step troubleshoot: reboot the gateway, check the lights, try Ethernet, then check live reports. If lights are red and others report, it's the carrier. If lights are green and you're alone, it's your equipment.

Should I call CenturyLink / Quantum Fiber during an outage?

If Downdetector shows a spike and the carrier has acknowledged it, wait — calling during a known outage makes the hold queue worse. Most resolve in under 90 minutes.

CENTURYLINK / QUANTUM FIBER OUTAGE · LIVE SOURCES + RELIABILITY GRADE

Is CenturyLink / Quantum Fiber down right now?

The live sources we'd check ourselves — CenturyLink / Quantum Fiber's official status page, Downdetector, Reddit, X — plus a reliability scorecard built from breaches, lawsuits, and PSC flags we track on every US ISP.

Honest framing: we don't fake "users affected" counts. Click the live-source cards below to see real-time community reports — same places we'd check. Our reliability grade is built from data we verify ourselves.

Open the interactive checker → Full CenturyLink / Quantum Fiber profile →

Check live status — CenturyLink / Quantum Fiber

🌐 CenturyLink / Quantum Fiber official status page Carrier-acknowledged outages Open status page → 📊 Downdetector — CenturyLink / Quantum Fiber User-reported outage reports Check reports → 💬 Reddit — r/CenturyLink Last 24h community threads Open Reddit → 🐦 X / Twitter — CenturyLink / Quantum Fiber Live community posts (last 24h) Open X →

📞 CenturyLink / Quantum Fiber outage hotline: 1-800-244-1111 · If Downdetector shows a spike, the hold queue is brutal. Wait if you can.

Is it really CenturyLink / Quantum Fiber — or is it your gateway? (4-step troubleshoot)

Reboot your gateway/modem. Unplug for 30 seconds, plug back in, wait 3 minutes. This resolves ~40% of "outages" people report. After 28 years of installs, Rick's seen this many times.
Check the lights on the modem/ONT. If the "internet" or "online" light is off or red, the carrier signal isn't reaching you — that's a carrier-side problem. If all lights are green, the carrier signal is fine and the problem is your router or Wi-Fi.
Try Ethernet, not Wi-Fi. Plug a laptop directly into the gateway. If that works, your Wi-Fi router is the problem (or its placement, or interference). If Ethernet also fails, the carrier signal is down.
Now check live sources above. If others are reporting in your area, it's a real CenturyLink / Quantum Fiber outage — wait, don't call. Most outages resolve in under 90 minutes. If you're the only one reporting, call CenturyLink / Quantum Fiber.

CenturyLink / Quantum Fiber Reliability Scorecard

Reliability grade — B Formula: A baseline. -1 per breach in 24mo (cap -2), -1 per active class-action (cap -2), -1 per state PSC flag. Red editorial floor: D-. Yellow cap: B. Auditable — same data lives on the CenturyLink / Quantum Fiber profile.

Editorial status: 🟡 Caveats
Breaches (24mo): 0
Active class-actions: 0
State PSC flags: 0
Last verified: 2026-06-06

CenturyLink / Quantum Fiber — major incidents (last 24 months)

2020-08-30 Multi-region (CenturyLink/Level 3 backbone — affected many downstream services)
CenturyLink's Level 3 backbone suffered a BGP flowspec misconfiguration that took down significant portions of the internet for ~5 hours. Affected Cloudflare, Discord, AWS routes.
Source ↗

About this guide

Built by Bear & Rick Baron — a father-and-son AV install team with 78 combined years of residential AV experience. After 28 years of installs, the #1 truth about ISP outages: half the time it's not the ISP — it's the gateway, the wiring, or the power. The troubleshoot block above is the same one Rick walks customers through on every "my internet is broken" call. Verified 2026-06-06. Re-verified quarterly.