Visitor

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4 Messages

Monday, July 21st, 2025

Need an Agent

“I’m trying to activate a new CAX80 modem. I cannot get past the forced text-code verification and cannot reach a human agent that will allow an alternate verification means. The forum won’t let me save or send a message. I need help from an official employee.”

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Accepted Solution

Expert

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112.6K Messages

27 days ago

Connect it to the coax line / outlet and power it up. Let it fully sync up with the system. Check that the front or the top panel indicator light(s) is / are steadily lit. Then call 1-855-652-3446. That is their self-install device activation line. Have the RF / CM / HFC MAC address and the serial number of it handy when you call.

Visitor

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4 Messages

@EG​ Thank you.  For the most part this worked, but Xfinity on provisioning found that there were problems with the activation; then there wasn't; then there was.

We called in a technician on Saturday and all of his tests (and he did 1000 of them) showed everything was fine -- and frankly I haven't had a problem since bar one or two messages to check internet when I deployed Copilot from my laptop (and the laptop said I had a working wifi connection to internet when this happened).  He rewired a couple of things and put a monitor on my line for 30 days which would trigger the internet department if anything dropped inappropriately.

So far, so good.  I can now modify router settings to secure my environment better.

Accepted Solution

Expert

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112.6K Messages

25 days ago

@user_3k9ieb 

Did you have any luck with that self-activation method ?

Visitor

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4 Messages

Yes  I opted to call Xfinity for provisioning and after 4 hours we set up a site visit, rewired a couple of things, and are monitoring the lines for 30 days.  So far, so good.

Expert

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112.6K Messages

@user_3k9ieb 

Thanks for replying. Hope things hold up for you. Best of luck !

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

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Official Employee

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3.6K Messages

25 days ago

 

user_3k9ieb Thank you for taking the time to reach out to us here on our Xfinity Forums. I'm sorry to hear that you are running into errors with activating your equipment. Our team would love to take a look and see how we can best assist you. Please send us a DM to Xfinity Support with your full name and address to get started.

To send a direct message:
Click "Sign In" if necessary
Click the "Direct Message" icon or  https://forums.xfinity.com/direct-messaging
Click the "New message" (pen and paper) icon
The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there.
As you are typing a drop-down list appears. Select "Xfinity Support" from that list.
A "Xfinity Support" graphic replaces the "To:" line.
Type your message in the text area near the bottom of the window   
Press Enter to send it

 

Visitor

 • 

4 Messages

Thank you.  For the most part this worked, but Xfinity on provisioning found that there were problems with the activation; then there wasn't; then there was.

We called in a technician on Saturday and all of his tests (and he did 1000 of them) showed everything was fine -- and frankly I haven't had a problem since bar one or two messages to check internet when I deployed Copilot from my laptop (and the laptop said I had a working wifi connection to internet when this happened).  He rewired a couple of things and put a monitor on my line for 30 days which would trigger the internet department if anything dropped inappropriately.

So far, so good.  I can now modify router settings to secure my environment better.

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