CBN CD8000: Everything You Need

The CBN CD8000 is a DOCSIS 3.1 cable modem approved for use on the Rogers/Shaw cable network (Rogers West / Shaw footprint). This guide covers setup, LED meanings, how to access the modem page, reset instructions, and common troubleshooting tips.

Contents:

• Quick Specs
• How to connect the CD8000
• Light Patterns
• Reset Instructions
• Common Troubleshooting
• When to Contact Support

Quick Specs (CD8000)

• Type: DOCSIS 3.1 Cable Modem (No Wi-Fi / No Router)

• Wi-Fi: ❌ None (Use your free Loaner Aria Mesh router or use your own router/Wi-Fi system)

• Ethernet Ports: 2 × 1 Gigabit LAN ports

• DOCSIS Channels: DOCSIS 3.1 (OFDM/OFDMA) + DOCSIS 3.0 fallback

✅ Important: The CD8000 is a modem only. It does not provide Wi-Fi.

How to Connect the CD8000 (Physical Setup)

1. Connect the coax cable from the wall to the modem’s Cable/Coax port.

2. Plug in the power adapter and turn the modem on (if it has a power switch).

3. Wait for the modem to boot (2–10 minutes).

4. Connect an Ethernet cable from:

   • CD8000 LAN Port 1 → your router’s WAN/Internet port

    

❌ Note: Only use LAN 1 port to connect to the router. The second ethernet port LAN 2 should be left unused. Connecting additional devices directly to the modem may cause instability, connection drops and performance issues.

Light Patterns (LED Meaning)

✅ Normal working pattern:

Power solid + DS solid + US solid + Online solid

Reset Instructions (Important)

There are two types of resets:

1) Power Cycle (recommended first step)

Use this for most issues:

1. Unplug modem power

2. Wait 30 seconds

3. Plug power back in

4. Wait 3–5 minutes for Online to go solid

✅ Best for: slow speeds, “no internet”, after swapping routers and intermittent disconnections.

2) Factory Reset (last resort)

This resets modem settings and clears the event log.

1. Locate the Reset hole on the modem

2. Hold reset for 10–15 seconds until the lights turn off or start flashing. 

3. Release and allow modem to reboot

⚠️ Only do this if instructed by support. It may require re-activation depending on situation.

Using Both Ethernet Ports (Important)

The CD8000 has two gigabit ports — but for all customers:

✅ Only one port should be used (LAN Port 1)

❌ Plugging both ports into the router does not combine speed

❌ It does not create two WANs

Connecting additional devices directly to the modem's LAN 2 may cause instability, connection drops and performance issues.

Common Issues & Fixes

1. Online light keeps blinking (never solid)

This means the modem is not fully registered.

Try:

• hand-tighten coax connector (don’t overtighten)

• power cycle modem (unplug 30 sec)

• test a different coax cable/port if available

If it still doesn’t go solid after 15 minutes:

➡️ Contact support so we can verify provisioning and signal.

2. Internet works but drops randomly

This is often upstream noise or cable signal instability.

Steps:

• remove unnecessary coax extensions or adapters

• ensure coax connectors are tight and not corroded

• avoid splitters (if present)

• check modem logs (if possible)

➡️ If you see repeated intermittent disconenctions, contact support.

3. Slow speeds (especially on gigabit)

Most speed issues are caused by router/Wi-Fi limits.

Best practice:

• test speed using wired Ethernet directly to the router

• reboot router and modem

• Check out our "What are the best practices to improve my Wi-Fi experience" knowledge base article 

✅ Reminder: A 1 gig Ethernet port typically maxes around ~940 Mbps in speed tests due to overhead.

When to Contact Support

Please contact us if:

• Online light won’t go solid after 10 minutes

• random disconnects continue after a power cycle

• modem logs show repeated:

  • T3 timeouts

  • Loss of Sync

• you need help activating a replacement modem