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I have a replacement modem. How do I get the MAC address on my account updated?
As the subject says. My replacement modem is here now and I need to update the MAC address on my account. Can I do this online or do I have to call a phone number?
MikeB39A
Problem Solver
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695 Messages
23 days ago
This can usually be done online through the Xfinity website or the Xfinity app.
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BruceW
Gold Problem Solver
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26.6K Messages
23 days ago
You need to activate the modem with them. They desperately, desperately want you to do that using their Xfinity App (see https://www.xfinity.com/support/articles/activate-xfi-gateway-app). If that doesn't work give their activation line at 1-855-652-3446 a try. And if that doesn't work, try calling Customer Service at 1-800-Xfinity (1-800-934-6489) an tell them you need to activate the modem.
Good luck!
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