Optimum Speed Test

Use this tool to check your internet connection speed for Optimum (Altice USA). Whether you are on the newer Optimum Fiber network or the traditional Hybrid Fiber-Coax (HFC) network, this test will verify your bandwidth.

Fiber vs Coax: What to Expect

Optimum operates two distinct networks, and your speed results will look different for each:

  • Optimum Fiber (Gateway 6): Symmetrical speeds. If you have the "Fiber 1 Gig" plan, you should see ~940 Mbps Download AND ~940 Mbps Upload. Ping is usually < 10ms.
  • Optimum Coax (Altice One): Asymmetrical speeds. You might see 940 Mbps Download, but only 35-50 Mbps Upload. Ping is higher (20-40ms).

Optimum Router Login

Optimum gateways are unique because they are often managed via a Cloud Portal rather than a local IP address.

Device Type Login / Management
Gateway 6 (UBC1326) Fiber / Wi-Fi 6 Visit router.optimum.net (Requires Optimum ID)
Altice One Coax / TV Manage via TV Settings or Optimum Support App

Troubleshooting Status Lights

Gateway 6 (White Tower):

  • Solid Green (Internet): Connected and online.
  • Blinking Green (Internet): Connecting or attempting to bond channels.
  • Solid Red (Internet): Connection Failed. Check your fiber jack or coax cable.
  • Solid Green (Phone): Telephone service is active.

Troubleshooting & Optimization

1. Slow Upload Speeds

If you have a 1 Gig plan but upload stuck at 35 Mbps, you are on the Coax Network. This is a technology limitation, not a glitch. To get faster uploads, you must switch to Optimum Fiber (if available).

2. "Smart WiFi" Issues

Optimum Gateway 6 enables "Smart WiFi" by default, combining 2.4GHz and 5GHz. If your smart devices (cameras/plugs) need 2.4GHz but can't connect, you often need to call Optimum support to split the bands as the user portal may not allow it.

3. Advanced: Using Your Own Router (Bridge Mode)

To use a personal router (e.g. ASUS, Netgear) without "Double NAT" errors, you must enable Bridge Mode on your Optimum Gateway. Note: You cannot usually do this yourself.

  1. Connect your router's WAN port to LAN Port 1 on the Optimum Gateway.
  2. Contact Optimum Support (Chat or Phone) and ask them to "Enable Bridge Mode on Port 1".
  3. Once confirmed, reboot both the Gateway and your Router.

4. Optimizing for Gaming (Lag Fixes)

If you experience lag spikes on Optimum Coax (Altice One):

  • Use Ethernet: Wi-Fi latency on All-in-One boxes is often high. Hardwire your console/PC.
  • Check Upload Saturation: Since Coax has low upload (35 Mbps), backing up photos or streaming can kill your ping. Pause uploads while gaming.

When to contact Optimum Support

Call Optimum at 888.276.5255 if:

  • Your Internet light is Solid Red.
  • You are getting speeds below 60% of your plan (e.g. < 600 Mbps on a 1 Gig plan) via Ethernet.
  • You need to enable "Bridge Mode" to use your own router.

Optimum FAQs

How do I change my Wi-Fi password? Unlike other ISPs, you cannot usually do this via 192.168.1.1. You must log in to the Optimum.net portal or use the Optimum Support App on your phone.

Is Optimum Fiber better than Cable? Yes. Fiber provides symmetrical speeds (e.g. 1 Gig up/down) and lower latency, ideal for gaming and Zoom calls.

Alternatives to check

Depending on your region (NY/NJ/CT/TX), these ISPs might be available: