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Quick fix

How to Reset an Optimum Router and Fix Optimum WiFi Problems

OptimumStep-by-step guideIndependent
Optimum gateway with power cord and coax cable

Optimum internet problems are most often solved with a restart done in the right order. This page explains how to restart and reset an Optimum router or gateway and how to work through WiFi that is not working. Optimum equipment varies by model, so where light colors differ, check the guide for your model.

Restart an Optimum router or gateway

  1. Unplug the power cord from the gateway. If you have a separate router, unplug it too.

  2. Wait about a minute.

  3. Plug in the modem or gateway first and wait several minutes for its lights to settle.

  4. Plug in the router, if you have one, and wait a few more minutes.

You can also restart from the Optimum app, which is useful when your WiFi is down and you are on mobile data.

Factory reset

If a restart fails, use the reset button with a paperclip. A factory reset erases your WiFi name, password and settings, so you will reconnect your devices with the defaults printed on the label. Use it as a last step.

Optimum WiFi not working: checklist

  1. Check the Optimum app or outage page for an outage.

  2. Look at the lights. As a general rule across providers, a steady light means connected and a red or blinking light means the device cannot connect.

  3. Tighten the coax cable at the wall and the gateway, and seat the power cord.

  4. Restart in order: modem or gateway first, router second.

  5. Connect a device by Ethernet to see whether the problem is WiFi or the internet.

  6. Fix a single device by forgetting the network and reconnecting.

If WiFi drops or is slow

Move the router to an open, central spot away from microwaves and thick walls, keep it out of cabinets and use the 5 GHz network near it.

When to contact Optimum

If there is no outage and the internet stays down after a restart and cable checks, contact Optimum with your model and a list of steps tried. Ask them to check signal levels and replace failing equipment.

The bottom line

Check for an outage, restart in order, check cables and reset only if needed. See our general guides for light meanings and restart tips.

Frequently asked questions about how to reset optimum router

How do I reset my Optimum router?

Unplug the power cord for about a minute, plug it in and wait several minutes for the lights to settle. You can also restart from the Optimum app. Use the reset button only as a last resort.

Why is my Optimum WiFi not working?

The usual causes are an outage, a loose coax cable, a gateway that needs a restart or a problem on one device. Check for an outage first.

What do the lights on an Optimum router mean?

Light colors depend on the model. In general, a steady light means connected and a red or blinking light means no connection. Check the guide for your model.

Will a reset erase my WiFi password?

A restart does not. A factory reset does, and returns the gateway to the defaults on its label.

How do I know if it is an Optimum outage?

Check the Optimum app or outage page on mobile data. If there is an outage at your address, wait for it to end.