New Poster
•
2 Messages
sb8 manual
Where can I obtain the User Guide or Manual for the Xfinity XB8 Wi-Fi Gateway (a.k.a. Vendor Technicolor, Model: CGM4981COM)?
New Poster
•
2 Messages
Where can I obtain the User Guide or Manual for the Xfinity XB8 Wi-Fi Gateway (a.k.a. Vendor Technicolor, Model: CGM4981COM)?
XfinityRoberto
Official Employee
•
1.3K Messages
1 year ago
Hello and welcome to Comcast. Thank you so much for reaching out to us about your concerns of the modem manuals. You can actually go to https://www.xfinity.com/support/articles/broadband-gateways-userguides? and review the user guide for the XB8 modem.
4
0
EG
Expert
•
105.6K Messages
1 year ago
@user_6b6141
Connect it to the coax line / outlet and power it up. Let it fully sync up with the system, and check that the front / top panel indicator light(s) are steadily lit.
Then 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, go outside and try calling 1-855-652-3446. That is their self-install device activation line.
If that doesn't work for you, stay outside and 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.
As far as the "noisey fan" goes, it's a common problem. The fan is malfunctioning. There is no fix other than to get it swapped out for another. If you can't tolerate it, take it to your local Xfinity store for the fastest option, or ship it back for free via UPS and have them ship you another one. You can even get *home pickup*.
https://www.xfinity.com/support/articles/returning-your-equipment
0
0
user_5839b0
1 Message
1 year ago
I've been looking for instructions on using the "4 gigabit Ethernet ports" documented in the marketing literature. For instance, one of them is marked with an orange line - how is that port different?
The "user guide" linked by @XfinityRoberto is useless - a one page list of features and "download the app and follow the instructions" is a poor substitute for a user manual!
1
0
EG
Expert
•
105.6K Messages
1 year ago
The original poster has not returned. 4-month-old / veering off topic thread is now being closed.
0
0