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Troubleshooting Tips - Motorola MB7420 Quick Start Manual

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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, 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.

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