MB8600 Lights
Troubleshooting Tips
What if I can’t make an Internet connection right after installation?
First turn your cable modem off for at least 8 seconds, then on, to see if that fixes the
problem.
Check the connections you’ve made to your cable modem -power, Ethernet, and coax.
Are those connections good?
Check that the modem’s power cube is plugged into a live outlet, and that the Ethernet
cable is connected securely.
Make sure that your coax cable is live. You can check that by using it with a TV.
Check that you provided the correct setup information to your cable service provider.
Contact your cable service provider to make sure they’ve turned on your Internet
service.
What if my cable modem has been working, and then stops working?
First turn your cable modem off for at least 8 seconds, then on, to see if that fixes the
problem.
If the modem’s lights don’t come on, check that the modem is getting power from its
power cube and that the modem’s power button is on.
Check your cable modem cables.
Check with your service provider. Sometimes there’s a service outage or some other
service issue.
What if I’m getting Internet service but my speed is disappointing?
Be sure you know what speed you’re paying for.
Check the speed with a computer plugged into the modem. Use one of the tools found
when you search the phrase: broadband speed test.
If you get good speed when a computer’s plugged into the modem, you may have a
router problem.
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