High Speed Cable Modem Model CM1000 Quick Start Guide.

Internet speed tests, like this one or the test found atSpeedTest.net, measure the latter, or the speed reaching the device running the test. These test results are often lower than your plan speed due to various factors outside your Internet provider's control, including WiFi conditions and device capabilities.

Xfinity register purchased modem

NETGEAR Nighthawk Ultra-High Speed Cable Modem for XFINITY Voice (CM1150V) delivers gigabit speed cable internet and the best call clarity. This high-performance DOCSIS 3.1 cable modem supports all of today’s internet service plans and is designed for the fastest internet speed tiers in near future.

Xfinity register purchased modem

Connect your cable modem to a computer. Call Comcast XFINITY to activate Internet service and register voice telephone lines. To connect your cable modem to a computer: Use the coaxial cable that your cable company provided to connect the cable port on your cable modem to a cable wall outlet. Make sure that the cable is tightly connected.

Xfinity register purchased modem

Using Approved Third-Party Equipment for Xfinity Internet and Xfinity Voice Find out if you're using an Xfinity-approved modem. View the entire list of approved modems.

Xfinity register purchased modem

Purchased in anticipation of DOCSIS 3.1 as many internet providers (XFINITY in my area) are continually supporting this new standard. Lights on the modem indicate whether it's connected to your ISP via 3.1 (blue) or the fallback 3.0 (green) which is a useful visual indicator.

Xfinity register purchased modem

For users who don't subscribe to Xfinity Mobile or to an eligible Xfinity Internet package, hourly, daily, weekly and monthly Xfinity WiFi On Demand Passes are available for purchase. Qualifying customers can register up to 20 WiFi-enabled devices with our automatic sign-in feature. This eliminates the need to sign in every time you're on-the-go.

Xfinity register purchased modem

DOCSIS 3.0 8x4 Arris TM822g Telephony Modem. The Arris TM822g Touchstone DOCSIS 3.0 8x4 Embedded Multimedia Terminal Adaptor (E-MTA)Arris TM822G delivers two lines of primary line Voice over IP (VoIP), ultra-high speed data access, and multiple battery pack options to support telephony service during power outages.

How to Replace a Comcast Modem with your Own.

Xfinity register purchased modem

This category features a list of several Xfinity approved modems that are cable modem compatible with Xfinity service. This is based on providers approved list, but it is important that you always check with your provider to ensure compatibility with any provider as we are a third party re-seller and Comcast compatibility policies may change at any time.

Xfinity register purchased modem

My xfinity internet goes out on all devices multiple times a week on all devices and even on my pc with a lan cable so its not a wifi issue. It does this every week and it is so shitty. how can a company not make internet that works, its their job to make sure it works. I have tried everything and know other people with the same problem help.

Xfinity register purchased modem

Comcast Identity Management Portal. Sorry, we ran into a problem. It looks like you come from an unknown source.

Xfinity register purchased modem

A modem is only a modem and has no ability to preform routing, switching, or broadcast radio signals for WiFi. If you had a Comcast gateway prior to this you must use the XFi app to provision the new gateway with the SSID and password that you were using previously.

Xfinity register purchased modem

Be sure you have your Comcast XFINITY account information handy. Comcast will need to know the account number of your cable service and the phone number associated with your account for activation. This can be found on your Comcast monthly bill statement. Also, Comcast Xfinity will need to know your cable modem's MAC ADDRESS, called CM MAC.

Xfinity register purchased modem

This category features a list of several Comcast telephone modems that are cable modem compatible with Comcast telephone modem service. This is based on providers approved list, but it is important that you always check with your provider to ensure compatibility with any provider.

Xfinity register purchased modem

Xfinity WiFi hotspots can not only be found in our customers’ homes, but also in sports stadiums, shopping districts, parks, malls, transit hubs, and small business locations like restaurants, coffee shops, convenience stores, fast food chains, and doctors’ offices.

How Do I Connect My Phone To My Comcast Modem?

Save on XFINITY Digital Cable TV, High Speed Internet and Home Phone Services. Enjoy entertainment your way with great deals on XFINITY by Comcast.Shop for xfinity cable modem at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up.Check and hand tighten the coax cable to the cable connector on the modem. Plug the power cord from the modem to the electrical outlet. Allow the modem to power on and perform it's boot sequence. The modem may reboot a few times during this process. Activation can occur when there is a solid green Internet LED on the modem.


Over the weekend, we purchased and installed a new modem. (Note: we have always owned our equipment and do not lease from Xfinity, the router is a separate device that we also own). Since then, on a daily basis, we have lost connectivity and been asked to activate the modem.Also, Comcast Xfinity will need to know your cable modem's MAC ADDRESS, called CM MAC. You will also be asked for your cable modem's model name, model number, and serial number. This information is all printed on a label on the bottom of your cable modem.