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Joe B.

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Specialities: Home networking, Wi-Fi routers, modems, Windows/macOS internet issues, DNS & IP configuration, ISP setup

Fix Verizon router no internet — FiOS “Connected, no internet”, red/amber WAN light, ONT Ethernet issues

Technician avatar Technician
Hi! We’ll get your Verizon router no internet issue sorted. Quick questions so we choose the right steps: is this Fios (fiber with an ONT) or Verizon DSL? On the router (G3100/G1100/CR1000A or similar), what’s the Status LED color — solid white, blinking blue, or red/amber? Do phones/laptops show Wi-Fi connected but no internet? Also check the ONT: are the DATA/Ethernet and NETWORK lights on, and is the cable from ONT going to the router’s WAN port (not a LAN port)?
Customer
We have Fios with an ONT in the basement. The router is a Verizon G3100. The front light is solid red. Phones and laptops connect to Wi-Fi but nothing loads. The ONT’s power and network lights look normal, but I’m not sure about the Ethernet light. Internet worked earlier today and then dropped.
Technician avatar Technician
Thanks — classic Fios no internet symptoms. On Verizon, a red/amber status can mean the router isn’t getting a valid WAN/DHCP lease from the ONT, the ONT Ethernet link is down, or there’s an area service outage. Less often it’s DNS on devices or a bad coax/MoCA backhaul on older setups.

We’ll verify the ONT → router path, do a clean power cycle, then confirm the router has a real WAN IP from Verizon. If Wi-Fi still shows “connected, no internet,” we’ll refresh DHCP/DNS on your devices and check for an outage in the My Fios app.
Customer
The ONT feeds the router with an Ethernet cable. TV boxes use coax. I can log into the G3100 web page. It says “Internet: Disconnected” and WAN IP is 0.0.0.0. Wi-Fi shows up fine but no pages load on any device.
Technician avatar Technician
Perfect. Let’s re-establish the ONT→router lease and link.

Step A — Proper ONT & router reboot (Verizon)
1) Unplug the router power for 60 seconds.
2) If your ONT has a power plug or battery backup, turn the ONT off 60 seconds (or use its reset button if provided). If it’s hard-wired, pull the battery and power as Verizon instructs.
3) Power the ONT back on. Wait until POWER & NETWORK LEDs go solid (can take 2–3 min). Confirm the ETHERNET/DATA light turns on when a cable is connected.
4) Plug the router back in. On G3100/CR1000A you want a solid white light when online. If it returns red/amber, continue below.
5) Log into the router and check Internet/WAN status. Do you now see a Verizon IP (not 0.0.0.0)?
Customer
After rebooting both, the light went white for a second, then red again. WAN is still 0.0.0.0. The ONT’s Ethernet light is off. I tried a different LAN cable between ONT and the router’s WAN but no change.
Technician avatar Technician
If the ONT’s Ethernet/DATA light is off, the ONT isn’t linking to the router. Two quick paths:

• Reseat ports: With power on, firmly reseat Ethernet at the ONT and in the router’s WAN (blue) port. Try a known-good Cat5e/6.
• ONT handoff type: Some older installs used coax/MoCA WAN. Verify your service is set to Ethernet handoff (most current Fios is). If it was MoCA and recently changed, the coax splitter or ONT setting may need Verizon to flip it to Ethernet.

Also open the My Fios app or Verizon outage page to rule out a service outage. If there’s no outage, we’ll force a DHCP release/renew on the router and ONT next.
Customer
No outage reported. I reseated cables and replaced the ONT-to-router cable; the ONT Ethernet light is now on. The router shows “Connected” with a real WAN IP, but some devices still say “Connected, no internet”.
Technician avatar Technician
Great — WAN is good, now refresh device network configs.

Step B — Clear “Wi-Fi connected, no internet” on devices
• Windows: Set IPv4 and DNS to “Obtain automatically”, then run:
ipconfig /release → ipconfig /renew → ipconfig /flushdns (Admin Command Prompt).
• macOS: Forget the SSID, reconnect; or Renew DHCP Lease in Network settings.
• iOS/Android: Toggle Airplane mode; or “Forget network” then re-join. Ensure any VPN/DNS apps are off.
• If needed, set router DNS temporarily to Verizon/Automatic, test, then optionally try public DNS (1.1.1.1 / 8.8.8.8) to rule out DNS issues.

After each device renews DHCP, traffic should flow. If one PC on Ethernet still drops, we’ll tune that NIC and the router’s QoS.
Customer
Clearing DNS/DHCP fixed phones and the laptop. One gaming PC on Ethernet still drops from games, even though web browsing works. Router is up-to-date.
Technician avatar Technician
Let’s harden that wired link:

• Move the cable to a different LAN port; try another Cat6 cable.
• Update the PC’s Ethernet adapter driver; disable any third-party VPN/packet shapers.
• In the router, disable experimental features (Smart QoS/Traffic Prioritization) for a test, or reserve a DHCP reservation for the PC.
• Check that no double-NAT exists (only the Verizon router connected to the ONT). If using your own router behind the Verizon gateway, use bridge/DMZ or run a single router.

If multiple wired devices drop, swap the LAN cable to the ONT or consider a simple unmanaged switch test to isolate the port hardware.
Customer
Swapped the cable/port and updated the NIC driver — no more drops. Everything’s online. Any preventative tips so the Verizon no internet problem doesn’t come back?
Technician avatar Technician
Absolutely — here’s how to keep Verizon/Fios stable:

Step C — Make the fix stick
• Keep the router on automatic firmware updates and reboot it monthly.
• Photograph the ONT label and your router’s WAN/MAC for quick reference. Note whether your WAN is Ethernet or MoCA handoff.
• Secure the router (strong admin password; disable remote admin unless needed).
• Avoid daisy-chained splitters on coax TV runs; use Verizon-rated splitters if MoCA is in use.
• If power flickers are common, use a small UPS for ONT + router so DHCP leases and ONT stay healthy.
• When Wi-Fi says connected no internet in the future, first check My Fios for service outage, then power-cycle ONT → router in that order.
Customer
Got it. ONT/Router are on a UPS now and auto-updates are enabled. Everything’s been stable for an hour. Thanks for the Verizon-specific walkthrough!
Technician avatar Technician
You’re welcome!

Summary: For Verizon router no internet, verify the ONT lights and handoff, reboot ONT → router, ensure the router gets a real DHCP/WAN IP, fix device DNS/DHCP, and check for Fios outages in the app. If you see a persistent red status LED or 0.0.0.0 WAN, reseat ONT Ethernet and contact Verizon to reprovision the ONT. If you want, open a chat and we’ll click through the G3100 with you live.
Customer
Everything’s working — streaming and gaming are solid. Appreciate the fast help!
Technician avatar Technician
Glad to hear it! If a neighbor mentions Fios Wi-Fi connected but no internet or a Verizon router red light, feel free to share this checklist — or start a chat and we’ll walk them through it.

Quick answer: the accepted fix

Accepted fix for Verizon router no internet: verify the ONT has power/network and an active Ethernet link, power-cycle ONT → router, confirm the router gets a valid WAN/DHCP IP, then refresh device DNS/DHCP. If issues persist, check for a service outage in My Fios.

Why Verizon routers lose internet (ONT, WAN DHCP, DNS, MoCA)

Most Verizon router no internet problems stem from the ONT handoff or the WAN lease. A dark ONT Ethernet/DATA light, a 0.0.0.0 WAN IP, or a red Status LED on G3100/CR1000A usually points to a bad link or lost DHCP. Coax/MoCA WAN on older installs, mis-seated splitters, or device-level DNS overrides can also make Wi-Fi show “connected” while sites fail.

Work the path in order — device → router → ONT → Verizon network. If Ethernet from the ONT works directly to a laptop, focus on the router WAN port and DHCP. If all devices fail and the router shows Connected with a real IP, clear device DNS, reboot clients, or test alternate DNS temporarily.

How to tell if it’s the router, ONT, or a Verizon outage

To isolate a Fios no internet issue fast: confirm the ONT lights (Power/Network/Ethernet). If Ethernet is dark, reseat/replace the ONT-to-router cable and ensure ONT is provisioned for Ethernet handoff. Next, log into the router to see if it has a live WAN/DHCP IP. If it does and only one device fails, refresh that device’s DHCP/DNS. If the router has no WAN IP and ONT link is good, check for a Verizon outage or call to reprovision the ONT.

Verizon router no internet — quick troubleshooting tips

Confirm ONT and WAN first, then clean up device DNS/DHCP and check the outage page.

Fast path: verify ONT lights → ensure ONT Ethernet goes to router WAN → reboot ONT then router → confirm router gets a DHCP/WAN IP → refresh device IP/DNS → check My Fios for outages. Keep firmware updated and avoid unnecessary splitters to prevent recurring Fios Wi-Fi connected but no internet problems.

Disclaimer: This information is AI-generated and intended for general guidance only. For advice specific to your router model and ISP, please consult a verified expert on Whizz-Tech before making decisions.

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FAQ

What does a red light on my Verizon router mean?

On G3100/CR1000A a red Status LED typically means no internet or a critical fault. Check the ONT Ethernet/DATA light, reseat the cable to the router’s WAN port, reboot ONT → router, then confirm the router receives a valid WAN/DHCP address.

How do I fix “Fios Wi-Fi connected, no internet” on all devices?

Confirm the ONT has power/network and the Ethernet link to the router is lit. Reboot ONT, then the router, and verify a live WAN IP in the router admin page. Finally, refresh device DHCP/DNS by toggling Wi-Fi or renewing the lease.

How can I check for a Verizon outage?

Use the My Fios app or Verizon’s Service Outage page to see if your area is affected. If there’s no outage and the router still shows 0.0.0.0, contact Verizon to reprovision the ONT.

When should I factory reset my Verizon router?

If the ONT link is good, there’s no outage, and the router still won’t pull a DHCP lease after reboots, a factory reset can clear corruption. Note your SSID/password and any custom settings before resetting.

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