mattejohnson's profile

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Friday, March 6th, 2020 7:00 AM

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Difficulty setting up modem - can’t connect to xfinity.com/activate

Hi all,

I’m having difficulty setting up my internet service. My modem is a CM1000 and I can’t connect to xfinity’s activation page. My computer is able to connect to the modem directly via Ethernet, I am being allocated a WAN IP (running ipconfig on my laptop), I can ping my default gateway, but any internet request won’t go through. I’ve checked my DNS settings to see if I needed to use Comcast’s DNS to connect, but that also didn’t help.

What should I do?

Contributor

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141 Messages

5 years ago


@mattejohnson wrote:
Hi all,

I’m having difficulty setting up my internet service. My modem is a CM1000 and I can’t connect to xfinity’s activation page. My computer is able to connect to the modem directly via Ethernet, I am being allocated a WAN IP (running ipconfig on my laptop), I can ping my default gateway, but any internet request won’t go through. I’ve checked my DNS settings to see if I needed to use Comcast’s DNS to connect, but that also didn’t help.

What should I do?

Try calling 1-855-652-3446. That is their device activation line.

Frequent Visitor

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7 Messages

5 years ago

When I use my own modem, I had to call xfinity directly and give them the MAC address of my router before they let me activate it, then I was able to go to the xfinity.com/activate page. Initally it just kept saying it couldn't connect to my router or something. Hope this helps.

Expert

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110.2K Messages

5 years ago


@mattejohnson wrote:
Hi all,

I’m having difficulty setting up my internet service. My modem is a CM1000 and I can’t connect to xfinity’s activation page. My computer is able to connect to the modem directly via Ethernet, I am being allocated a WAN IP (running ipconfig on my laptop), I can ping my default gateway, but any internet request won’t go through. I’ve checked my DNS settings to see if I needed to use Comcast’s DNS to connect, but that also didn’t help.

What should I do?

Connect it to the coax line and power it up. Let it fully sync up with the system ("DS, "US", and the "Online" lights are steadily lit). Connect a computer to it and open up a browser. You *may* see their "Walled Garden" modem self registration page. If so, follow the screen prompts. Have your mobile telephone number, your Xfinity username and password or the account number and telephone number associated with your Comcast account handy.

If not, try calling 1-855-652-3446. That is their device activation line.

If that doesn't work for you, you can call 1-800-comcast and tell a rep that you would like to have a new modem provisioned for service. Have the RF / CM / HFC MAC address and the serial number of it handy when you call.


Gold Problem Solver

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2K Messages

5 years ago

You can also try to access the activation site directly at:

 

https://register.be.xfinity.com/activate

Expert

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110.2K Messages

5 years ago

Not if they are not getting out.

Visitor

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1 Message

4 years ago

I bought a returned Netgear Modem, but when I tried to activate it, I was told that it cannot be activated because it is active on another account. I cannot returned it to the store, store is no longer in business. Any options for me to activate it? It is not Xfinity equipment, for them it should not be matter, who own it.

 

Expert

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110.2K Messages

@user_2498d1

Please create a new topic of your own here on this board detailing your issue (copy your post and paste it there). Thanks. Re-closing this year old dead thread that was improperly re-opened by the new forum software / platform. A known issue that is being worked on. 

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.

Was your question answered? Please mark an Accepted Answer!tick
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.

Was your question answered? Please mark an Accepted Answer!tick
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.

Was your question answered? Please mark an Accepted Answer!tick
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