Arris SB8200 Only One Blue Light: What Does It Mean?

If you have noticed just one blue light on your Arris modem and are wondering what it means, you have come to the right place.

In this article, we are going to explore this issue and try to explain everything in a simple, friendly, and informative manner.

What Does Only One Blue Light Mean On The Arris SB8200?

The Arris SB8200 modem has several LED lights and uses different light signals to indicate its status. If you see only one blue light on your modem, it typically indicates that the device is connected to the network but is only using one channel for downstream traffic.

This is not the optimal configuration for high-speed internet, as the SB8200 is capable of bonding multiple channels for faster speeds.

Is It A Problem?

While having only one blue light on your Arris SB8200 isn’t necessarily a problem, it does mean that your modem isn’t operating at its full potential.

The SB8200 is designed to use multiple downstream channels to provide higher internet speeds. If only one channel is active, you might not be getting the internet speed you are paying for.

How To Fix The Issue

Fixing the Arris SB8200 only one blue light issue involves checking your network settings and possibly restarting your modem.

Here is a step-by-step guide on how to do it properly.

Check Your Internet Plan

The first thing to do to resolve this issue is to check your internet plan. The Arris SB8200 is designed to support high-speed, multi-channel connections.

If these features aren’t supported by your internet plan, your modem will only connect to a single downstream channel, resulting in one blue light.

In order to check your internet plan, do the following.

  • Check your internet service agreement or contract. It should contain details about the speeds and features the plan supports.
  • Check the ISP’s Website. Most Internet Service Providers (ISPs) list the details of their plans on their websites. Compare your plan features with the specifications of the Arris SB8200.
  • Contact Your ISP if you are not quite sure about the details of your plan. They can provide information about your current plan and suggest upgrades if necessary.

Restart Your Modem

If your internet plan supports high-speed, multi-channel connections, but you are still seeing only one blue light, try restarting the modem.

restart your Arris modem

This can often resolve minor connectivity issues and help your modem establish a multi-channel connection.

Here is how to reset your Arris SB8200 properly.

  • Unplug Your Modem. Wait till all the lights on the modem go out.
  • Leave the modem unplugged for 1-3 minutes. This allows the modem to fully power down and clear its memory.
  • Plug the power cord into your modem. Wait for the device to boot up. This can take a few minutes.
  • Check the Arris SB8200 modem lights. If more than one blue light is on, your modem has successfully established a multi-channel connection.

Contact Your ISP

If you have checked your internet plan and restarted the modem, but there is still only one blue light on the Arris SB8200, contact your ISP. They can check if there is an issue with your connection or if there is a problem on their end.

When you contact your ISP, make sure to explain the issue in detail, ask them to check your line, and don’t forget to talk about your internet plan to confirm that it supports multi-channel connections. If it doesn’t, consider upgrading to a plan that does.

By following these steps, you should be able to resolve the Arris SB8200 only one blue light issue.

Frequently Asked Questions

What does the blue light mean on SB8200?

The blue light on your Arris SB8200 modem means that the downstream or upstream channel connection is in DOCSIS 3.1 mode. If you see only one blue light, it means your modem is connected to the network but is using only one channel for downstream traffic. Ideally, for high-speed internet, your SB8200 should be bonding multiple channels, indicated by more than one blue light.

What is the difference between the blue and green light on Arris SB8200?

On the Arris Surfboard SB8200, the color of the downstream and upstream lights indicates the type of channel connection:
A green light indicates that the downstream or upstream channel is connected in DOCSIS 3.0 mode. This is a standard connection mode that provides reliable internet access.
A blue light, on the other hand, signifies a high-speed Internet connection with downstream or upstream channels in DOCSIS 3.1.

How do I know if my Arris modem is bad?

Several signs can indicate a problem with your Arris modem.
– If your modem is frequently restarting itself or losing connection, it could be a sign of a problem.
– A red light on your modem typically indicates a hardware issue.
– If your internet speeds are consistently slower than what your plan offers, your modem might be the issue.
– If your modem is hot to the touch, it could be a sign of a malfunction.

What are the lights on Arris SB8200?

The Arris SB8200 has four main lights:
Power Light – Indicates that the modem is powered on.
Downstream Light – Shows the status of the downstream (receive) channel connection. A green light indicates a connection in DOCSIS 3.0, while a blue light indicates a high-speed connection in DOCSIS 3.1 mode.
Upstream Light: Shows the status of the upstream (send) channel connection. Similar to the downstream light, a green light indicates a connection in DOCSIS 3.0, while a blue light indicates a high-speed connection in DOCSIS 3.1 mode.
Internet Connection Light: Indicates whether the modem is connected to the Internet.
A steady light (green or blue) typically means a successful connection, while a flashing light usually means the modem is trying to establish a connection. When all Arris modem lights are off it requires your attention.


Understanding the lights on your Arris SB8200 can help you get the most out of your internet connection. While only one blue light isn’t a cause for alarm, it is worth checking whether you are getting the speeds you are paying for.

If you are still experiencing issues or have any questions, it is best to contact Arris Support. They can help you fix all your networking issues in no time.