SignalDip

Is Optimum down?

Optimum is up

Our latest checks reached Optimum without trouble. If it is not working for you, the problem is probably on your side. Try the fixes below.

Report a problem with Optimum

Optimum over the last 24 hours

We ran 8 checks in the last 24 hours and 0 failed. Uptime was 100% and the average response took 142 ms. Taller bars mean slower responses.

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23:00 UTCnow

Optimum problems reported by visitors

No one has reported a Optimum problem here in the last 24 hours. If you are having trouble, tell us what is going wrong.

23:00 UTC: 000:00 UTC: 001:00 UTC: 002:00 UTC: 003:00 UTC: 004:00 UTC: 005:00 UTC: 006:00 UTC: 007:00 UTC: 008:00 UTC: 009:00 UTC: 010:00 UTC: 011:00 UTC: 012:00 UTC: 013:00 UTC: 014:00 UTC: 015:00 UTC: 016:00 UTC: 017:00 UTC: 018:00 UTC: 019:00 UTC: 020:00 UTC: 021:00 UTC: 022:00 UTC: 0
  1. Home internet0%
  2. Mobile signal or data0%
  3. TV0%
  4. Calls or landline0%
  5. Account or app login0%
What is not working with Optimum?

Optimum uptime, last 30 days

100% uptime across the 1 days we have on record.

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2026-09-05today

Optimum not working? Try this

Optimum provides cable internet, fibre internet and mobile service. Optimum is the Altice USA brand and also covers the areas that used to be Suddenlink.

Find out whether Optimum knows about an outage at your address

  1. Sign in to the Optimum app on mobile data. Known outages for your address are shown on the first screen.
  2. Look at the report chart on this page. A sudden jump in the last hour means other Optimum customers are affected too.
  3. Ask a neighbour on Optimum, or check a second device, to see whether the problem is only yours.

Restart your Optimum gateway the right way

  1. Unplug the power from your Optimum gateway. Leave the fibre box on the wall (ONT) plugged in unless its lights are off or red.
  2. Wait a full 60 seconds so the equipment drops its old connection.
  3. Plug it back in and give it up to 10 minutes. On cable, the "online" light should stop blinking and stay solid.
  4. Still blinking? Check that the coax cable is finger-tight at the wall and at the modem. A loose coax connector is the most common cause of a single-home cable fault.
  5. Open the Optimum app and run its connection test. It can reset the line from the provider's side, which a power cycle cannot.

No signal or no data on Optimum

  1. Switch airplane mode on for 10 seconds and off again. This forces the phone to register with the network from scratch.
  2. Restart the phone. If it shows "SOS" or "Emergency calls only", the SIM is not being accepted by the network.
  3. Calls work but data does not? Open Settings, turn mobile data off and on, and check the APN matches the one in Optimum's help pages.
  4. Try Wi-Fi calling if you have home internet. It keeps calls and texts working during a mast fault.
  5. Take the SIM out, wipe it and reseat it, or toggle the eSIM off and on in Settings.

Work out whether it is the internet or just your Wi-Fi

  1. Connect a laptop to the router with a network cable. If the cable works and Wi-Fi does not, the provider is fine and the router or its position is the problem.
  2. Test more than one device. One failing device points to that device.
  3. Turn off any VPN and try again.

Optimum outage questions

Is Optimum down right now?

The status at the top of this page is updated every few minutes from automated checks of Optimum's systems and from visitor reports. Our checks reach Optimum's website and sign-in servers, so a local line or mast fault in one neighbourhood shows up first in the report chart rather than in the checks.

How do I check for a Optimum outage in my area?

Use the Optimum app, which shows faults for your own address or postcode. Then compare with the reports on this page to see whether other customers are affected.

Why is my Optimum internet slow but not down?

Slow speeds with a working connection usually come from Wi-Fi, not the line. Test with a cable first. If the wired speed is also far below your plan, there may be a fault on the line that has not become a full outage yet, so report it.

Can I get a refund for a Optimum outage?

There is no federal rule that forces US providers to credit outages, but most will if you ask. Contact Optimum after service returns, give the start and end time, and ask for a prorated credit for the days you were without service.

How long do Optimum outages usually last?

Most faults are cleared within a few hours. Damage to cables from storms or construction can take a day or more, because a crew has to repair the line by hand.